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Merge branch 'sockopt-cleanups'

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Christoph Hellwig says:

====================
sockopt cleanups

this series cleans up various lose ends in the sockopt code, most
importantly removing the compat_{get,set}sockopt infrastructure in favor
of just using in_compat_syscall() in the few places that care.
====================

Signed-off-by: David S. Miller <davem@davemloft.net>
This commit is contained in:
David S. Miller 2020-07-19 18:16:41 -07:00
commit 9aa0dfe1fc
98 changed files with 793 additions and 1891 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

4
arch/arm64/include/asm/unistd32.h
View File

@ -599,9 +599,9 @@ __SYSCALL(__NR_recvfrom, compat_sys_recvfrom)
#define __NR_shutdown 293
__SYSCALL(__NR_shutdown, sys_shutdown)
#define __NR_setsockopt 294
__SYSCALL(__NR_setsockopt, compat_sys_setsockopt)
__SYSCALL(__NR_setsockopt, sys_setsockopt)
#define __NR_getsockopt 295
__SYSCALL(__NR_getsockopt, compat_sys_getsockopt)
__SYSCALL(__NR_getsockopt, sys_getsockopt)
#define __NR_sendmsg 296
__SYSCALL(__NR_sendmsg, compat_sys_sendmsg)
#define __NR_recvmsg 297

4
arch/mips/kernel/syscalls/syscall_n32.tbl
View File

@ -60,8 +60,8 @@
50 n32 getsockname sys_getsockname
51 n32 getpeername sys_getpeername
52 n32 socketpair sys_socketpair
53 n32 setsockopt compat_sys_setsockopt
54 n32 getsockopt compat_sys_getsockopt
53 n32 setsockopt sys_setsockopt
54 n32 getsockopt sys_getsockopt
55 n32 clone __sys_clone
56 n32 fork __sys_fork
57 n32 execve compat_sys_execve

4
arch/mips/kernel/syscalls/syscall_o32.tbl
View File

@ -184,7 +184,7 @@
170 o32 connect sys_connect
171 o32 getpeername sys_getpeername
172 o32 getsockname sys_getsockname
173 o32 getsockopt sys_getsockopt compat_sys_getsockopt
173 o32 getsockopt sys_getsockopt sys_getsockopt
174 o32 listen sys_listen
175 o32 recv sys_recv compat_sys_recv
176 o32 recvfrom sys_recvfrom compat_sys_recvfrom
@ -192,7 +192,7 @@
178 o32 send sys_send
179 o32 sendmsg sys_sendmsg compat_sys_sendmsg
180 o32 sendto sys_sendto
181 o32 setsockopt sys_setsockopt compat_sys_setsockopt
181 o32 setsockopt sys_setsockopt sys_setsockopt
182 o32 shutdown sys_shutdown
183 o32 socket sys_socket
184 o32 socketpair sys_socketpair

4
arch/parisc/kernel/syscalls/syscall.tbl
View File

@ -198,8 +198,8 @@
178 common rt_sigqueueinfo sys_rt_sigqueueinfo compat_sys_rt_sigqueueinfo
179 common rt_sigsuspend sys_rt_sigsuspend compat_sys_rt_sigsuspend
180 common chown sys_chown
181 common setsockopt sys_setsockopt compat_sys_setsockopt
182 common getsockopt sys_getsockopt compat_sys_getsockopt
181 common setsockopt sys_setsockopt sys_setsockopt
182 common getsockopt sys_getsockopt sys_getsockopt
183 common sendmsg sys_sendmsg compat_sys_sendmsg
184 common recvmsg sys_recvmsg compat_sys_recvmsg
185 common semop sys_semop

4
arch/powerpc/kernel/syscalls/syscall.tbl
View File

@ -433,8 +433,8 @@
336 common recv sys_recv compat_sys_recv
337 common recvfrom sys_recvfrom compat_sys_recvfrom
338 common shutdown sys_shutdown
339 common setsockopt sys_setsockopt compat_sys_setsockopt
340 common getsockopt sys_getsockopt compat_sys_getsockopt
339 common setsockopt sys_setsockopt sys_setsockopt
340 common getsockopt sys_getsockopt sys_getsockopt
341 common sendmsg sys_sendmsg compat_sys_sendmsg
342 common recvmsg sys_recvmsg compat_sys_recvmsg
343 32 recvmmsg sys_recvmmsg_time32 compat_sys_recvmmsg_time32

4
arch/s390/kernel/syscalls/syscall.tbl
View File

@ -372,8 +372,8 @@
362 common connect sys_connect sys_connect
363 common listen sys_listen sys_listen
364 common accept4 sys_accept4 sys_accept4
365 common getsockopt sys_getsockopt compat_sys_getsockopt
366 common setsockopt sys_setsockopt compat_sys_setsockopt
365 common getsockopt sys_getsockopt sys_getsockopt
366 common setsockopt sys_setsockopt sys_setsockopt
367 common getsockname sys_getsockname sys_getsockname
368 common getpeername sys_getpeername sys_getpeername
369 common sendto sys_sendto sys_sendto

12
arch/sparc/kernel/sys32.S
View File

@ -157,22 +157,22 @@ do_sys_shutdown: /* sys_shutdown(int, int) */
nop
nop
nop
do_sys_setsockopt: /* compat_sys_setsockopt(int, int, int, char *, int) */
do_sys_setsockopt: /* sys_setsockopt(int, int, int, char *, int) */
47: ldswa [%o1 + 0x0] %asi, %o0
sethi %hi(compat_sys_setsockopt), %g1
sethi %hi(sys_setsockopt), %g1
48: ldswa [%o1 + 0x8] %asi, %o2
49: lduwa [%o1 + 0xc] %asi, %o3
50: ldswa [%o1 + 0x10] %asi, %o4
jmpl %g1 + %lo(compat_sys_setsockopt), %g0
jmpl %g1 + %lo(sys_setsockopt), %g0
51: ldswa [%o1 + 0x4] %asi, %o1
nop
do_sys_getsockopt: /* compat_sys_getsockopt(int, int, int, u32, u32) */
do_sys_getsockopt: /* sys_getsockopt(int, int, int, u32, u32) */
52: ldswa [%o1 + 0x0] %asi, %o0
sethi %hi(compat_sys_getsockopt), %g1
sethi %hi(sys_getsockopt), %g1
53: ldswa [%o1 + 0x8] %asi, %o2
54: lduwa [%o1 + 0xc] %asi, %o3
55: lduwa [%o1 + 0x10] %asi, %o4
jmpl %g1 + %lo(compat_sys_getsockopt), %g0
jmpl %g1 + %lo(sys_getsockopt), %g0
56: ldswa [%o1 + 0x4] %asi, %o1
nop
do_sys_sendmsg: /* compat_sys_sendmsg(int, struct compat_msghdr *, unsigned int) */

4
arch/sparc/kernel/syscalls/syscall.tbl
View File

@ -147,7 +147,7 @@
115 32 getgroups32 sys_getgroups
116 common gettimeofday sys_gettimeofday compat_sys_gettimeofday
117 common getrusage sys_getrusage compat_sys_getrusage
118 common getsockopt sys_getsockopt compat_sys_getsockopt
118 common getsockopt sys_getsockopt sys_getsockopt
119 common getcwd sys_getcwd
120 common readv sys_readv compat_sys_readv
121 common writev sys_writev compat_sys_writev
@ -425,7 +425,7 @@
352 common userfaultfd sys_userfaultfd
353 common bind sys_bind
354 common listen sys_listen
355 common setsockopt sys_setsockopt compat_sys_setsockopt
355 common setsockopt sys_setsockopt sys_setsockopt
356 common mlock2 sys_mlock2
357 common copy_file_range sys_copy_file_range
358 common preadv2 sys_preadv2 compat_sys_preadv2

7
arch/x86/entry/syscall_x32.c
View File

@ -8,6 +8,13 @@
#include <asm/unistd.h>
#include <asm/syscall.h>
/*
* Reuse the 64-bit entry points for the x32 versions that occupy different
* slots in the syscall table.
*/
#define __x32_sys_getsockopt __x64_sys_getsockopt
#define __x32_sys_setsockopt __x64_sys_setsockopt
#define __SYSCALL_64(nr, sym)
#define __SYSCALL_X32(nr, sym) extern long __x32_##sym(const struct pt_regs *);

4
arch/x86/entry/syscalls/syscall_32.tbl
View File

@ -376,8 +376,8 @@
362 i386 connect sys_connect
363 i386 listen sys_listen
364 i386 accept4 sys_accept4
365 i386 getsockopt sys_getsockopt compat_sys_getsockopt
366 i386 setsockopt sys_setsockopt compat_sys_setsockopt
365 i386 getsockopt sys_getsockopt sys_getsockopt
366 i386 setsockopt sys_setsockopt sys_setsockopt
367 i386 getsockname sys_getsockname
368 i386 getpeername sys_getpeername
369 i386 sendto sys_sendto

4
arch/x86/entry/syscalls/syscall_64.tbl
View File

@ -396,8 +396,8 @@
538 x32 sendmmsg compat_sys_sendmmsg
539 x32 process_vm_readv compat_sys_process_vm_readv
540 x32 process_vm_writev compat_sys_process_vm_writev
541 x32 setsockopt compat_sys_setsockopt
542 x32 getsockopt compat_sys_getsockopt
541 x32 setsockopt sys_setsockopt
542 x32 getsockopt sys_getsockopt
543 x32 io_setup compat_sys_io_setup
544 x32 io_submit compat_sys_io_submit
545 x32 execveat compat_sys_execveat

1
crypto/af_alg.c
View File

@ -335,7 +335,6 @@ static const struct proto_ops alg_proto_ops = {
.ioctl = sock_no_ioctl,
.listen = sock_no_listen,
.shutdown = sock_no_shutdown,
.getsockopt = sock_no_getsockopt,
.mmap = sock_no_mmap,
.sendpage = sock_no_sendpage,
.sendmsg = sock_no_sendmsg,

4
crypto/algif_aead.c
View File

@ -361,11 +361,9 @@ static struct proto_ops algif_aead_ops = {
.ioctl = sock_no_ioctl,
.listen = sock_no_listen,
.shutdown = sock_no_shutdown,
.getsockopt = sock_no_getsockopt,
.mmap = sock_no_mmap,
.bind = sock_no_bind,
.accept = sock_no_accept,
.setsockopt = sock_no_setsockopt,
.release = af_alg_release,
.sendmsg = aead_sendmsg,
@ -454,11 +452,9 @@ static struct proto_ops algif_aead_ops_nokey = {
.ioctl = sock_no_ioctl,
.listen = sock_no_listen,
.shutdown = sock_no_shutdown,
.getsockopt = sock_no_getsockopt,
.mmap = sock_no_mmap,
.bind = sock_no_bind,
.accept = sock_no_accept,
.setsockopt = sock_no_setsockopt,
.release = af_alg_release,
.sendmsg = aead_sendmsg_nokey,

4
crypto/algif_hash.c
View File

@ -279,10 +279,8 @@ static struct proto_ops algif_hash_ops = {
.ioctl = sock_no_ioctl,
.listen = sock_no_listen,
.shutdown = sock_no_shutdown,
.getsockopt = sock_no_getsockopt,
.mmap = sock_no_mmap,
.bind = sock_no_bind,
.setsockopt = sock_no_setsockopt,
.release = af_alg_release,
.sendmsg = hash_sendmsg,
@ -383,10 +381,8 @@ static struct proto_ops algif_hash_ops_nokey = {
.ioctl = sock_no_ioctl,
.listen = sock_no_listen,
.shutdown = sock_no_shutdown,
.getsockopt = sock_no_getsockopt,
.mmap = sock_no_mmap,
.bind = sock_no_bind,
.setsockopt = sock_no_setsockopt,
.release = af_alg_release,
.sendmsg = hash_sendmsg_nokey,

2
crypto/algif_rng.c
View File

@ -101,11 +101,9 @@ static struct proto_ops algif_rng_ops = {
.ioctl = sock_no_ioctl,
.listen = sock_no_listen,
.shutdown = sock_no_shutdown,
.getsockopt = sock_no_getsockopt,
.mmap = sock_no_mmap,
.bind = sock_no_bind,
.accept = sock_no_accept,
.setsockopt = sock_no_setsockopt,
.sendmsg = sock_no_sendmsg,
.sendpage = sock_no_sendpage,

4
crypto/algif_skcipher.c
View File

@ -188,11 +188,9 @@ static struct proto_ops algif_skcipher_ops = {
.ioctl = sock_no_ioctl,
.listen = sock_no_listen,
.shutdown = sock_no_shutdown,
.getsockopt = sock_no_getsockopt,
.mmap = sock_no_mmap,
.bind = sock_no_bind,
.accept = sock_no_accept,
.setsockopt = sock_no_setsockopt,
.release = af_alg_release,
.sendmsg = skcipher_sendmsg,
@ -281,11 +279,9 @@ static struct proto_ops algif_skcipher_ops_nokey = {
.ioctl = sock_no_ioctl,
.listen = sock_no_listen,
.shutdown = sock_no_shutdown,
.getsockopt = sock_no_getsockopt,
.mmap = sock_no_mmap,
.bind = sock_no_bind,
.accept = sock_no_accept,
.setsockopt = sock_no_setsockopt,
.release = af_alg_release,
.sendmsg = skcipher_sendmsg_nokey,

17
drivers/atm/eni.c
View File

@ -2027,21 +2027,6 @@ static int eni_ioctl(struct atm_dev *dev,unsigned int cmd,void __user *arg)
return dev->phy->ioctl(dev,cmd,arg);
}
static int eni_getsockopt(struct atm_vcc *vcc,int level,int optname,
void __user *optval,int optlen)
{
return -EINVAL;
}
static int eni_setsockopt(struct atm_vcc *vcc,int level,int optname,
void __user *optval,unsigned int optlen)
{
return -EINVAL;
}
static int eni_send(struct atm_vcc *vcc,struct sk_buff *skb)
{
enum enq_res res;
@ -2215,8 +2200,6 @@ static const struct atmdev_ops ops = {
.open = eni_open,
.close = eni_close,
.ioctl = eni_ioctl,
.getsockopt = eni_getsockopt,
.setsockopt = eni_setsockopt,
.send = eni_send,
.phy_put = eni_phy_put,
.phy_get = eni_phy_get,

2
drivers/atm/firestream.c
View File

@ -1277,8 +1277,6 @@ static const struct atmdev_ops ops = {
.send = fs_send,
.owner = THIS_MODULE,
/* ioctl: fs_ioctl, */
/* getsockopt: fs_getsockopt, */
/* setsockopt: fs_setsockopt, */
/* change_qos: fs_change_qos, */
/* For now implement these internally here... */

27
drivers/atm/fore200e.c
View File

@ -1710,31 +1710,6 @@ fore200e_getstats(struct fore200e* fore200e)
return 0;
}
static int
fore200e_getsockopt(struct atm_vcc* vcc, int level, int optname, void __user *optval, int optlen)
{
/* struct fore200e* fore200e = FORE200E_DEV(vcc->dev); */
DPRINTK(2, "getsockopt %d.%d.%d, level = %d, optname = 0x%x, optval = 0x%p, optlen = %d\n",
vcc->itf, vcc->vpi, vcc->vci, level, optname, optval, optlen);
return -EINVAL;
}
static int
fore200e_setsockopt(struct atm_vcc* vcc, int level, int optname, void __user *optval, unsigned int optlen)
{
/* struct fore200e* fore200e = FORE200E_DEV(vcc->dev); */
DPRINTK(2, "setsockopt %d.%d.%d, level = %d, optname = 0x%x, optval = 0x%p, optlen = %d\n",
vcc->itf, vcc->vpi, vcc->vci, level, optname, optval, optlen);
return -EINVAL;
}
#if 0 /* currently unused */
static int
fore200e_get_oc3(struct fore200e* fore200e, struct oc3_regs* regs)
@ -3026,8 +3001,6 @@ static const struct atmdev_ops fore200e_ops = {
.open = fore200e_open,
.close = fore200e_close,
.ioctl = fore200e_ioctl,
.getsockopt = fore200e_getsockopt,
.setsockopt = fore200e_setsockopt,
.send = fore200e_send,
.change_qos = fore200e_change_qos,
.proc_read = fore200e_proc_read,

40
drivers/atm/horizon.c
View File

@ -2527,46 +2527,6 @@ static void hrz_close (struct atm_vcc * atm_vcc) {
clear_bit(ATM_VF_ADDR,&atm_vcc->flags);
}
#if 0
static int hrz_getsockopt (struct atm_vcc * atm_vcc, int level, int optname,
void *optval, int optlen) {
hrz_dev * dev = HRZ_DEV(atm_vcc->dev);
PRINTD (DBG_FLOW|DBG_VCC, "hrz_getsockopt");
switch (level) {
case SOL_SOCKET:
switch (optname) {
// case SO_BCTXOPT:
// break;
// case SO_BCRXOPT:
// break;
default:
return -ENOPROTOOPT;
};
break;
}
return -EINVAL;
}
static int hrz_setsockopt (struct atm_vcc * atm_vcc, int level, int optname,
void *optval, unsigned int optlen) {
hrz_dev * dev = HRZ_DEV(atm_vcc->dev);
PRINTD (DBG_FLOW|DBG_VCC, "hrz_setsockopt");
switch (level) {
case SOL_SOCKET:
switch (optname) {
// case SO_BCTXOPT:
// break;
// case SO_BCRXOPT:
// break;
default:
return -ENOPROTOOPT;
};
break;
}
return -EINVAL;
}
#endif
#if 0
static int hrz_ioctl (struct atm_dev * atm_dev, unsigned int cmd, void *arg) {
hrz_dev * dev = HRZ_DEV(atm_dev);

16
drivers/atm/iphase.c
View File

@ -2880,20 +2880,6 @@ static int ia_ioctl(struct atm_dev *dev, unsigned int cmd, void __user *arg)
return 0;
}
static int ia_getsockopt(struct atm_vcc *vcc, int level, int optname,
void __user *optval, int optlen)
{
IF_EVENT(printk(">ia_getsockopt\n");)
return -EINVAL;
}
static int ia_setsockopt(struct atm_vcc *vcc, int level, int optname,
void __user *optval, unsigned int optlen)
{
IF_EVENT(printk(">ia_setsockopt\n");)
return -EINVAL;
}
static int ia_pkt_tx (struct atm_vcc *vcc, struct sk_buff *skb) {
IADEV *iadev;
struct dle *wr_ptr;
@ -3164,8 +3150,6 @@ static const struct atmdev_ops ops = {
.open = ia_open,
.close = ia_close,
.ioctl = ia_ioctl,
.getsockopt = ia_getsockopt,
.setsockopt = ia_setsockopt,
.send = ia_send,
.phy_put = ia_phy_put,
.phy_get = ia_phy_get,

2
drivers/atm/lanai.c
View File

@ -2537,8 +2537,6 @@ static const struct atmdev_ops ops = {
.dev_close = lanai_dev_close,
.open = lanai_open,
.close = lanai_close,
.getsockopt = NULL,
.setsockopt = NULL,
.send = lanai_send,
.phy_put = NULL,
.phy_get = NULL,

2
drivers/atm/solos-pci.c
View File

@ -1179,8 +1179,6 @@ static const struct atmdev_ops fpga_ops = {
.open = popen,
.close = pclose,
.ioctl = NULL,
.getsockopt = NULL,
.setsockopt = NULL,
.send = psend,
.send_oam = NULL,
.phy_put = NULL,

16
drivers/atm/zatm.c
View File

@ -1515,20 +1515,6 @@ static int zatm_ioctl(struct atm_dev *dev,unsigned int cmd,void __user *arg)
}
}
static int zatm_getsockopt(struct atm_vcc *vcc,int level,int optname,
void __user *optval,int optlen)
{
return -EINVAL;
}
static int zatm_setsockopt(struct atm_vcc *vcc,int level,int optname,
void __user *optval,unsigned int optlen)
{
return -EINVAL;
}
static int zatm_send(struct atm_vcc *vcc,struct sk_buff *skb)
{
int error;
@ -1582,8 +1568,6 @@ static const struct atmdev_ops ops = {
.open = zatm_open,
.close = zatm_close,
.ioctl = zatm_ioctl,
.getsockopt = zatm_getsockopt,
.setsockopt = zatm_setsockopt,
.send = zatm_send,
.phy_put = zatm_phy_put,
.phy_get = zatm_phy_get,

2
drivers/isdn/mISDN/socket.c
View File

@ -738,8 +738,6 @@ static const struct proto_ops base_sock_ops = {
.recvmsg = sock_no_recvmsg,
.listen = sock_no_listen,
.shutdown = sock_no_shutdown,
.setsockopt = sock_no_setsockopt,
.getsockopt = sock_no_getsockopt,
.connect = sock_no_connect,
.socketpair = sock_no_socketpair,
.accept = sock_no_accept,

2
drivers/net/ppp/pppoe.c
View File

@ -1110,8 +1110,6 @@ static const struct proto_ops pppoe_ops = {
.poll = datagram_poll,
.listen = sock_no_listen,
.shutdown = sock_no_shutdown,
.setsockopt = sock_no_setsockopt,
.getsockopt = sock_no_getsockopt,
.sendmsg = pppoe_sendmsg,
.recvmsg = pppoe_recvmsg,
.mmap = sock_no_mmap,

2
drivers/net/ppp/pptp.c
View File

@ -618,8 +618,6 @@ static const struct proto_ops pptp_ops = {
.getname = pptp_getname,
.listen = sock_no_listen,
.shutdown = sock_no_shutdown,
.setsockopt = sock_no_setsockopt,
.getsockopt = sock_no_getsockopt,
.sendmsg = sock_no_sendmsg,
.recvmsg = sock_no_recvmsg,
.mmap = sock_no_mmap,

9
include/linux/atmdev.h
View File

@ -176,11 +176,6 @@ struct atm_dev {
#define ATM_OF_IMMED 1 /* Attempt immediate delivery */
#define ATM_OF_INRATE 2 /* Attempt in-rate delivery */
/*
* ioctl, getsockopt, and setsockopt are optional and can be set to NULL.
*/
struct atmdev_ops { /* only send is required */
void (*dev_close)(struct atm_dev *dev);
int (*open)(struct atm_vcc *vcc);
@ -190,10 +185,6 @@ struct atmdev_ops { /* only send is required */
int (*compat_ioctl)(struct atm_dev *dev,unsigned int cmd,
void __user *arg);
#endif
int (*getsockopt)(struct atm_vcc *vcc,int level,int optname,
void __user *optval,int optlen);
int (*setsockopt)(struct atm_vcc *vcc,int level,int optname,
void __user *optval,unsigned int optlen);
int (*send)(struct atm_vcc *vcc,struct sk_buff *skb);
int (*send_oam)(struct atm_vcc *vcc,void *cell,int flags);
void (*phy_put)(struct atm_dev *dev,unsigned char value,

4
include/linux/compat.h
View File

@ -737,10 +737,6 @@ asmlinkage long compat_sys_shmat(int shmid, compat_uptr_t shmaddr, int shmflg);
asmlinkage long compat_sys_recvfrom(int fd, void __user *buf, compat_size_t len,
unsigned flags, struct sockaddr __user *addr,
int __user *addrlen);
asmlinkage long compat_sys_setsockopt(int fd, int level, int optname,
char __user *optval, unsigned int optlen);
asmlinkage long compat_sys_getsockopt(int fd, int level, int optname,
char __user *optval, int __user *optlen);
asmlinkage long compat_sys_sendmsg(int fd, struct compat_msghdr __user *msg,
unsigned flags);
asmlinkage long compat_sys_recvmsg(int fd, struct compat_msghdr __user *msg,

4
include/linux/filter.h
View File

@ -502,13 +502,11 @@ static inline bool insn_is_zext(const struct bpf_insn *insn)
offsetof(TYPE, MEMBER); \
})
#ifdef CONFIG_COMPAT
/* A struct sock_filter is architecture independent. */
struct compat_sock_fprog {
u16 len;
compat_uptr_t filter; /* struct sock_filter * */
};
#endif
struct sock_fprog_kern {
u16 len;
@ -1278,4 +1276,6 @@ struct bpf_sockopt_kern {
s32 retval;
};
int copy_bpf_fprog_from_user(struct sock_fprog *dst, void __user *src, int len);
#endif /* __LINUX_FILTER_H__ */

6
include/linux/net.h
View File

@ -165,12 +165,6 @@ struct proto_ops {
int optname, char __user *optval, unsigned int optlen);
int (*getsockopt)(struct socket *sock, int level,
int optname, char __user *optval, int __user *optlen);
#ifdef CONFIG_COMPAT
int (*compat_setsockopt)(struct socket *sock, int level,
int optname, char __user *optval, unsigned int optlen);
int (*compat_getsockopt)(struct socket *sock, int level,
int optname, char __user *optval, int __user *optlen);
#endif
void (*show_fdinfo)(struct seq_file *m, struct socket *sock);
int (*sendmsg) (struct socket *sock, struct msghdr *m,
size_t total_len);

14
include/linux/netfilter.h
View File

@ -164,17 +164,9 @@ struct nf_sockopt_ops {
int set_optmin;
int set_optmax;
int (*set)(struct sock *sk, int optval, void __user *user, unsigned int len);
#ifdef CONFIG_COMPAT
int (*compat_set)(struct sock *sk, int optval,
void __user *user, unsigned int len);
#endif
int get_optmin;
int get_optmax;
int (*get)(struct sock *sk, int optval, void __user *user, int *len);
#ifdef CONFIG_COMPAT
int (*compat_get)(struct sock *sk, int optval,
void __user *user, int *len);
#endif
/* Use the module struct to lock set/get code in place */
struct module *owner;
};
@ -350,12 +342,6 @@ int nf_setsockopt(struct sock *sk, u_int8_t pf, int optval, char __user *opt,
unsigned int len);
int nf_getsockopt(struct sock *sk, u_int8_t pf, int optval, char __user *opt,
int *len);
#ifdef CONFIG_COMPAT
int compat_nf_setsockopt(struct sock *sk, u_int8_t pf, int optval,
char __user *opt, unsigned int len);
int compat_nf_getsockopt(struct sock *sk, u_int8_t pf, int optval,
char __user *opt, int *len);
#endif
struct flowi;
struct nf_queue_entry;

2
include/linux/netfilter/x_tables.h
View File

@ -302,7 +302,7 @@ int xt_data_to_user(void __user *dst, const void *src,
int usersize, int size, int aligned_size);
void *xt_copy_counters_from_user(const void __user *user, unsigned int len,
struct xt_counters_info *info, bool compat);
struct xt_counters_info *info);
struct xt_counters *xt_counters_alloc(unsigned int counters);
struct xt_table *xt_register_table(struct net *net,

4
include/linux/syscalls.h
View File

@ -1424,4 +1424,8 @@ long compat_ksys_semtimedop(int semid, struct sembuf __user *tsems,
unsigned int nsops,
const struct old_timespec32 __user *timeout);
int __sys_getsockopt(int fd, int level, int optname, char __user *optval,
int __user *optlen);
int __sys_setsockopt(int fd, int level, int optname, char __user *optval,
int optlen);
#endif

1
include/net/compat.h
View File

@ -61,7 +61,6 @@ int __get_compat_msghdr(struct msghdr *kmsg, struct compat_msghdr __user *umsg,
compat_size_t *len);
int get_compat_msghdr(struct msghdr *, struct compat_msghdr __user *,
struct sockaddr __user **, struct iovec **);
struct sock_fprog __user *get_compat_bpf_fprog(char __user *optval);
int put_cmsg_compat(struct msghdr*, int, int, int, void *);
int cmsghdr_from_user_compat_to_kern(struct msghdr *, struct sock *,

13
include/net/inet_connection_sock.h
View File

@ -48,14 +48,6 @@ struct inet_connection_sock_af_ops {
char __user *optval, unsigned int optlen);
int (*getsockopt)(struct sock *sk, int level, int optname,
char __user *optval, int __user *optlen);
#ifdef CONFIG_COMPAT
int (*compat_setsockopt)(struct sock *sk,
int level, int optname,
char __user *optval, unsigned int optlen);
int (*compat_getsockopt)(struct sock *sk,
int level, int optname,
char __user *optval, int __user *optlen);
#endif
void (*addr2sockaddr)(struct sock *sk, struct sockaddr *);
void (*mtu_reduced)(struct sock *sk);
};
@ -311,11 +303,6 @@ void inet_csk_listen_stop(struct sock *sk);
void inet_csk_addr2sockaddr(struct sock *sk, struct sockaddr *uaddr);
int inet_csk_compat_getsockopt(struct sock *sk, int level, int optname,
char __user *optval, int __user *optlen);
int inet_csk_compat_setsockopt(struct sock *sk, int level, int optname,
char __user *optval, unsigned int optlen);
struct dst_entry *inet_csk_update_pmtu(struct sock *sk, u32 mtu);
#define TCP_PINGPONG_THRESH 3

4
include/net/ip.h
View File

@ -727,10 +727,6 @@ int ip_setsockopt(struct sock *sk, int level, int optname, char __user *optval,
unsigned int optlen);
int ip_getsockopt(struct sock *sk, int level, int optname, char __user *optval,
int __user *optlen);
int compat_ip_setsockopt(struct sock *sk, int level, int optname,
char __user *optval, unsigned int optlen);
int compat_ip_getsockopt(struct sock *sk, int level, int optname,
char __user *optval, int __user *optlen);
int ip_ra_control(struct sock *sk, unsigned char on,
void (*destructor)(struct sock *));

4
include/net/ipv6.h
View File

@ -1088,10 +1088,6 @@ int ipv6_setsockopt(struct sock *sk, int level, int optname,
char __user *optval, unsigned int optlen);
int ipv6_getsockopt(struct sock *sk, int level, int optname,
char __user *optval, int __user *optlen);
int compat_ipv6_setsockopt(struct sock *sk, int level, int optname,
char __user *optval, unsigned int optlen);
int compat_ipv6_getsockopt(struct sock *sk, int level, int optname,
char __user *optval, int __user *optlen);
int __ip6_datagram_connect(struct sock *sk, struct sockaddr *addr,
int addr_len);

10
include/net/sctp/structs.h
View File

@ -438,16 +438,6 @@ struct sctp_af {
int optname,
char __user *optval,
int __user *optlen);
int (*compat_setsockopt) (struct sock *sk,
int level,
int optname,
char __user *optval,
unsigned int optlen);
int (*compat_getsockopt) (struct sock *sk,
int level,
int optname,
char __user *optval,
int __user *optlen);
void (*get_dst) (struct sctp_transport *t,
union sctp_addr *saddr,
struct flowi *fl,

14
include/net/sock.h
View File

@ -1147,14 +1147,6 @@ struct proto {
int __user *option);
void (*keepalive)(struct sock *sk, int valbool);
#ifdef CONFIG_COMPAT
int (*compat_setsockopt)(struct sock *sk,
int level,
int optname, char __user *optval,
unsigned int optlen);
int (*compat_getsockopt)(struct sock *sk,
int level,
int optname, char __user *optval,
int __user *option);
int (*compat_ioctl)(struct sock *sk,
unsigned int cmd, unsigned long arg);
#endif
@ -1722,8 +1714,6 @@ int sock_no_getname(struct socket *, struct sockaddr *, int);
int sock_no_ioctl(struct socket *, unsigned int, unsigned long);
int sock_no_listen(struct socket *, int);
int sock_no_shutdown(struct socket *, int);
int sock_no_getsockopt(struct socket *, int , int, char __user *, int __user *);
int sock_no_setsockopt(struct socket *, int, int, char __user *, unsigned int);
int sock_no_sendmsg(struct socket *, struct msghdr *, size_t);
int sock_no_sendmsg_locked(struct sock *sk, struct msghdr *msg, size_t len);
int sock_no_recvmsg(struct socket *, struct msghdr *, size_t, int);
@ -1744,10 +1734,6 @@ int sock_common_recvmsg(struct socket *sock, struct msghdr *msg, size_t size,
int flags);
int sock_common_setsockopt(struct socket *sock, int level, int optname,
char __user *optval, unsigned int optlen);
int compat_sock_common_getsockopt(struct socket *sock, int level,
int optname, char __user *optval, int __user *optlen);
int compat_sock_common_setsockopt(struct socket *sock, int level,
int optname, char __user *optval, unsigned int optlen);
void sk_common_release(struct sock *sk);

4
include/net/tcp.h
View File

@ -401,10 +401,6 @@ int tcp_getsockopt(struct sock *sk, int level, int optname,
char __user *optval, int __user *optlen);
int tcp_setsockopt(struct sock *sk, int level, int optname,
char __user *optval, unsigned int optlen);
int compat_tcp_getsockopt(struct sock *sk, int level, int optname,
char __user *optval, int __user *optlen);
int compat_tcp_setsockopt(struct sock *sk, int level, int optname,
char __user *optval, unsigned int optlen);
void tcp_set_keepalive(struct sock *sk, int val);
void tcp_syn_ack_timeout(const struct request_sock *req);
int tcp_recvmsg(struct sock *sk, struct msghdr *msg, size_t len, int nonblock,

4
include/uapi/asm-generic/unistd.h
View File

@ -606,9 +606,9 @@ __SYSCALL(__NR_sendto, sys_sendto)
#define __NR_recvfrom 207
__SC_COMP(__NR_recvfrom, sys_recvfrom, compat_sys_recvfrom)
#define __NR_setsockopt 208
__SC_COMP(__NR_setsockopt, sys_setsockopt, compat_sys_setsockopt)
__SC_COMP(__NR_setsockopt, sys_setsockopt, sys_setsockopt)
#define __NR_getsockopt 209
__SC_COMP(__NR_getsockopt, sys_getsockopt, compat_sys_getsockopt)
__SC_COMP(__NR_getsockopt, sys_getsockopt, sys_getsockopt)
#define __NR_shutdown 210
__SYSCALL(__NR_shutdown, sys_shutdown)
#define __NR_sendmsg 211

2
net/appletalk/ddp.c
View File

@ -1917,8 +1917,6 @@ static const struct proto_ops atalk_dgram_ops = {
#endif
.listen = sock_no_listen,
.shutdown = sock_no_shutdown,
.setsockopt = sock_no_setsockopt,
.getsockopt = sock_no_getsockopt,
.sendmsg = atalk_sendmsg,
.recvmsg = atalk_recvmsg,
.mmap = sock_no_mmap,

14
net/atm/common.c
View File

@ -782,13 +782,8 @@ int vcc_setsockopt(struct socket *sock, int level, int optname,
vcc->atm_options &= ~ATM_ATMOPT_CLP;
return 0;
default:
if (level == SOL_SOCKET)
return -EINVAL;
break;
}
if (!vcc->dev || !vcc->dev->ops->setsockopt)
return -EINVAL;
return vcc->dev->ops->setsockopt(vcc, level, optname, optval, optlen);
}
}
int vcc_getsockopt(struct socket *sock, int level, int optname,
@ -826,13 +821,8 @@ int vcc_getsockopt(struct socket *sock, int level, int optname,
return copy_to_user(optval, &pvc, sizeof(pvc)) ? -EFAULT : 0;
}
default:
if (level == SOL_SOCKET)
return -EINVAL;
break;
}
if (!vcc->dev || !vcc->dev->ops->getsockopt)
return -EINVAL;
return vcc->dev->ops->getsockopt(vcc, level, optname, optval, len);
}
}
int register_atmdevice_notifier(struct notifier_block *nb)

2
net/bluetooth/bnep/sock.c
View File

@ -182,8 +182,6 @@ static const struct proto_ops bnep_sock_ops = {
.recvmsg = sock_no_recvmsg,
.listen = sock_no_listen,
.shutdown = sock_no_shutdown,
.setsockopt = sock_no_setsockopt,
.getsockopt = sock_no_getsockopt,
.connect = sock_no_connect,
.socketpair = sock_no_socketpair,
.accept = sock_no_accept,

2
net/bluetooth/cmtp/sock.c
View File

@ -185,8 +185,6 @@ static const struct proto_ops cmtp_sock_ops = {
.recvmsg = sock_no_recvmsg,
.listen = sock_no_listen,
.shutdown = sock_no_shutdown,
.setsockopt = sock_no_setsockopt,
.getsockopt = sock_no_getsockopt,
.connect = sock_no_connect,
.socketpair = sock_no_socketpair,
.accept = sock_no_accept,

2
net/bluetooth/hidp/sock.c
View File

@ -233,8 +233,6 @@ static const struct proto_ops hidp_sock_ops = {
.recvmsg = sock_no_recvmsg,
.listen = sock_no_listen,
.shutdown = sock_no_shutdown,
.setsockopt = sock_no_setsockopt,
.getsockopt = sock_no_getsockopt,
.connect = sock_no_connect,
.socketpair = sock_no_socketpair,
.accept = sock_no_accept,

214
net/bridge/netfilter/ebtables.c
View File

@ -1451,86 +1451,6 @@ static int copy_everything_to_user(struct ebt_table *t, void __user *user,
ebt_entry_to_user, entries, tmp.entries);
}
static int do_ebt_set_ctl(struct sock *sk,
int cmd, void __user *user, unsigned int len)
{
int ret;
struct net *net = sock_net(sk);
if (!ns_capable(net->user_ns, CAP_NET_ADMIN))
return -EPERM;
switch (cmd) {
case EBT_SO_SET_ENTRIES:
ret = do_replace(net, user, len);
break;
case EBT_SO_SET_COUNTERS:
ret = update_counters(net, user, len);
break;
default:
ret = -EINVAL;
}
return ret;
}
static int do_ebt_get_ctl(struct sock *sk, int cmd, void __user *user, int *len)
{
int ret;
struct ebt_replace tmp;
struct ebt_table *t;
struct net *net = sock_net(sk);
if (!ns_capable(net->user_ns, CAP_NET_ADMIN))
return -EPERM;
if (copy_from_user(&tmp, user, sizeof(tmp)))
return -EFAULT;
tmp.name[sizeof(tmp.name) - 1] = '\0';
t = find_table_lock(net, tmp.name, &ret, &ebt_mutex);
if (!t)
return ret;
switch (cmd) {
case EBT_SO_GET_INFO:
case EBT_SO_GET_INIT_INFO:
if (*len != sizeof(struct ebt_replace)) {
ret = -EINVAL;
mutex_unlock(&ebt_mutex);
break;
}
if (cmd == EBT_SO_GET_INFO) {
tmp.nentries = t->private->nentries;
tmp.entries_size = t->private->entries_size;
tmp.valid_hooks = t->valid_hooks;
} else {
tmp.nentries = t->table->nentries;
tmp.entries_size = t->table->entries_size;
tmp.valid_hooks = t->table->valid_hooks;
}
mutex_unlock(&ebt_mutex);
if (copy_to_user(user, &tmp, *len) != 0) {
ret = -EFAULT;
break;
}
ret = 0;
break;
case EBT_SO_GET_ENTRIES:
case EBT_SO_GET_INIT_ENTRIES:
ret = copy_everything_to_user(t, user, len, cmd);
mutex_unlock(&ebt_mutex);
break;
default:
mutex_unlock(&ebt_mutex);
ret = -EINVAL;
}
return ret;
}
#ifdef CONFIG_COMPAT
/* 32 bit-userspace compatibility definitions. */
struct compat_ebt_replace {
@ -2314,28 +2234,6 @@ static int compat_update_counters(struct net *net, void __user *user,
hlp.num_counters, user, len);
}
static int compat_do_ebt_set_ctl(struct sock *sk,
int cmd, void __user *user, unsigned int len)
{
int ret;
struct net *net = sock_net(sk);
if (!ns_capable(net->user_ns, CAP_NET_ADMIN))
return -EPERM;
switch (cmd) {
case EBT_SO_SET_ENTRIES:
ret = compat_do_replace(net, user, len);
break;
case EBT_SO_SET_COUNTERS:
ret = compat_update_counters(net, user, len);
break;
default:
ret = -EINVAL;
}
return ret;
}
static int compat_do_ebt_get_ctl(struct sock *sk, int cmd,
void __user *user, int *len)
{
@ -2344,14 +2242,6 @@ static int compat_do_ebt_get_ctl(struct sock *sk, int cmd,
struct ebt_table *t;
struct net *net = sock_net(sk);
if (!ns_capable(net->user_ns, CAP_NET_ADMIN))
return -EPERM;
/* try real handler in case userland supplied needed padding */
if ((cmd == EBT_SO_GET_INFO ||
cmd == EBT_SO_GET_INIT_INFO) && *len != sizeof(tmp))
return do_ebt_get_ctl(sk, cmd, user, len);
if (copy_from_user(&tmp, user, sizeof(tmp)))
return -EFAULT;
@ -2413,20 +2303,112 @@ static int compat_do_ebt_get_ctl(struct sock *sk, int cmd,
}
#endif
static int do_ebt_get_ctl(struct sock *sk, int cmd, void __user *user, int *len)
{
struct net *net = sock_net(sk);
struct ebt_replace tmp;
struct ebt_table *t;
int ret;
if (!ns_capable(net->user_ns, CAP_NET_ADMIN))
return -EPERM;
#ifdef CONFIG_COMPAT
/* try real handler in case userland supplied needed padding */
if (in_compat_syscall() &&
((cmd != EBT_SO_GET_INFO && cmd != EBT_SO_GET_INIT_INFO) ||
*len != sizeof(tmp)))
return compat_do_ebt_get_ctl(sk, cmd, user, len);
#endif
if (copy_from_user(&tmp, user, sizeof(tmp)))
return -EFAULT;
tmp.name[sizeof(tmp.name) - 1] = '\0';
t = find_table_lock(net, tmp.name, &ret, &ebt_mutex);
if (!t)
return ret;
switch (cmd) {
case EBT_SO_GET_INFO:
case EBT_SO_GET_INIT_INFO:
if (*len != sizeof(struct ebt_replace)) {
ret = -EINVAL;
mutex_unlock(&ebt_mutex);
break;
}
if (cmd == EBT_SO_GET_INFO) {
tmp.nentries = t->private->nentries;
tmp.entries_size = t->private->entries_size;
tmp.valid_hooks = t->valid_hooks;
} else {
tmp.nentries = t->table->nentries;
tmp.entries_size = t->table->entries_size;
tmp.valid_hooks = t->table->valid_hooks;
}
mutex_unlock(&ebt_mutex);
if (copy_to_user(user, &tmp, *len) != 0) {
ret = -EFAULT;
break;
}
ret = 0;
break;
case EBT_SO_GET_ENTRIES:
case EBT_SO_GET_INIT_ENTRIES:
ret = copy_everything_to_user(t, user, len, cmd);
mutex_unlock(&ebt_mutex);
break;
default:
mutex_unlock(&ebt_mutex);
ret = -EINVAL;
}
return ret;
}
static int do_ebt_set_ctl(struct sock *sk, int cmd, void __user *user,
unsigned int len)
{
struct net *net = sock_net(sk);
int ret;
if (!ns_capable(net->user_ns, CAP_NET_ADMIN))
return -EPERM;
switch (cmd) {
case EBT_SO_SET_ENTRIES:
#ifdef CONFIG_COMPAT
if (in_compat_syscall())
ret = compat_do_replace(net, user, len);
else
#endif
ret = do_replace(net, user, len);
break;
case EBT_SO_SET_COUNTERS:
#ifdef CONFIG_COMPAT
if (in_compat_syscall())
ret = compat_update_counters(net, user, len);
else
#endif
ret = update_counters(net, user, len);
break;
default:
ret = -EINVAL;
}
return ret;
}
static struct nf_sockopt_ops ebt_sockopts = {
.pf = PF_INET,
.set_optmin = EBT_BASE_CTL,
.set_optmax = EBT_SO_SET_MAX + 1,
.set = do_ebt_set_ctl,
#ifdef CONFIG_COMPAT
.compat_set = compat_do_ebt_set_ctl,
#endif
.get_optmin = EBT_BASE_CTL,
.get_optmax = EBT_SO_GET_MAX + 1,
.get = do_ebt_get_ctl,
#ifdef CONFIG_COMPAT
.compat_get = compat_do_ebt_get_ctl,
#endif
.owner = THIS_MODULE,
};

2
net/caif/caif_socket.c
View File

@ -981,7 +981,6 @@ static const struct proto_ops caif_seqpacket_ops = {
.listen = sock_no_listen,
.shutdown = sock_no_shutdown,
.setsockopt = setsockopt,
.getsockopt = sock_no_getsockopt,
.sendmsg = caif_seqpkt_sendmsg,
.recvmsg = caif_seqpkt_recvmsg,
.mmap = sock_no_mmap,
@ -1002,7 +1001,6 @@ static const struct proto_ops caif_stream_ops = {
.listen = sock_no_listen,
.shutdown = sock_no_shutdown,
.setsockopt = setsockopt,
.getsockopt = sock_no_getsockopt,
.sendmsg = caif_stream_sendmsg,
.recvmsg = caif_stream_recvmsg,
.mmap = sock_no_mmap,

2
net/can/bcm.c
View File

@ -1648,8 +1648,6 @@ static const struct proto_ops bcm_ops = {
.gettstamp = sock_gettstamp,
.listen = sock_no_listen,
.shutdown = sock_no_shutdown,
.setsockopt = sock_no_setsockopt,
.getsockopt = sock_no_getsockopt,
.sendmsg = bcm_sendmsg,
.recvmsg = bcm_recvmsg,
.mmap = sock_no_mmap,

122
net/compat.c
View File

@ -335,120 +335,6 @@ void scm_detach_fds_compat(struct msghdr *kmsg, struct scm_cookie *scm)
__scm_destroy(scm);
}
/* allocate a 64-bit sock_fprog on the user stack for duration of syscall. */
struct sock_fprog __user *get_compat_bpf_fprog(char __user *optval)
{
struct compat_sock_fprog __user *fprog32 = (struct compat_sock_fprog __user *)optval;
struct sock_fprog __user *kfprog = compat_alloc_user_space(sizeof(struct sock_fprog));
struct compat_sock_fprog f32;
struct sock_fprog f;
if (copy_from_user(&f32, fprog32, sizeof(*fprog32)))
return NULL;
memset(&f, 0, sizeof(f));
f.len = f32.len;
f.filter = compat_ptr(f32.filter);
if (copy_to_user(kfprog, &f, sizeof(struct sock_fprog)))
return NULL;
return kfprog;
}
EXPORT_SYMBOL_GPL(get_compat_bpf_fprog);
static int do_set_attach_filter(struct socket *sock, int level, int optname,
char __user *optval, unsigned int optlen)
{
struct sock_fprog __user *kfprog;
kfprog = get_compat_bpf_fprog(optval);
if (!kfprog)
return -EFAULT;
return sock_setsockopt(sock, level, optname, (char __user *)kfprog,
sizeof(struct sock_fprog));
}
static int compat_sock_setsockopt(struct socket *sock, int level, int optname,
char __user *optval, unsigned int optlen)
{
if (optname == SO_ATTACH_FILTER ||
optname == SO_ATTACH_REUSEPORT_CBPF)
return do_set_attach_filter(sock, level, optname,
optval, optlen);
return sock_setsockopt(sock, level, optname, optval, optlen);
}
static int __compat_sys_setsockopt(int fd, int level, int optname,
char __user *optval, unsigned int optlen)
{
int err;
struct socket *sock;
if (optlen > INT_MAX)
return -EINVAL;
sock = sockfd_lookup(fd, &err);
if (sock) {
err = security_socket_setsockopt(sock, level, optname);
if (err) {
sockfd_put(sock);
return err;
}
if (level == SOL_SOCKET)
err = compat_sock_setsockopt(sock, level,
optname, optval, optlen);
else if (sock->ops->compat_setsockopt)
err = sock->ops->compat_setsockopt(sock, level,
optname, optval, optlen);
else
err = sock->ops->setsockopt(sock, level,
optname, optval, optlen);
sockfd_put(sock);
}
return err;
}
COMPAT_SYSCALL_DEFINE5(setsockopt, int, fd, int, level, int, optname,
char __user *, optval, unsigned int, optlen)
{
return __compat_sys_setsockopt(fd, level, optname, optval, optlen);
}
static int __compat_sys_getsockopt(int fd, int level, int optname,
char __user *optval,
int __user *optlen)
{
int err;
struct socket *sock = sockfd_lookup(fd, &err);
if (sock) {
err = security_socket_getsockopt(sock, level, optname);
if (err) {
sockfd_put(sock);
return err;
}
if (level == SOL_SOCKET)
err = sock_getsockopt(sock, level,
optname, optval, optlen);
else if (sock->ops->compat_getsockopt)
err = sock->ops->compat_getsockopt(sock, level,
optname, optval, optlen);
else
err = sock->ops->getsockopt(sock, level,
optname, optval, optlen);
sockfd_put(sock);
}
return err;
}
COMPAT_SYSCALL_DEFINE5(getsockopt, int, fd, int, level, int, optname,
char __user *, optval, int __user *, optlen)
{
return __compat_sys_getsockopt(fd, level, optname, optval, optlen);
}
/* Argument list sizes for compat_sys_socketcall */
#define AL(x) ((x) * sizeof(u32))
static unsigned char nas[21] = {
@ -608,13 +494,11 @@ COMPAT_SYSCALL_DEFINE2(socketcall, int, call, u32 __user *, args)
ret = __sys_shutdown(a0, a1);
break;
case SYS_SETSOCKOPT:
ret = __compat_sys_setsockopt(a0, a1, a[2],
compat_ptr(a[3]), a[4]);
ret = __sys_setsockopt(a0, a1, a[2], compat_ptr(a[3]), a[4]);
break;
case SYS_GETSOCKOPT:
ret = __compat_sys_getsockopt(a0, a1, a[2],
compat_ptr(a[3]),
compat_ptr(a[4]));
ret = __sys_getsockopt(a0, a1, a[2], compat_ptr(a[3]),
compat_ptr(a[4]));
break;
case SYS_SENDMSG:
ret = __compat_sys_sendmsg(a0, compat_ptr(a1), a[2]);

23
net/core/filter.c
View File

@ -77,6 +77,29 @@
#include <net/transp_v6.h>
#include <linux/btf_ids.h>
int copy_bpf_fprog_from_user(struct sock_fprog *dst, void __user *src, int len)
{
if (in_compat_syscall()) {
struct compat_sock_fprog f32;
if (len != sizeof(f32))
return -EINVAL;
if (copy_from_user(&f32, src, sizeof(f32)))
return -EFAULT;
memset(dst, 0, sizeof(*dst));
dst->len = f32.len;
dst->filter = compat_ptr(f32.filter);
} else {
if (len != sizeof(*dst))
return -EINVAL;
if (copy_from_user(dst, src, sizeof(*dst)))
return -EFAULT;
}
return 0;
}
EXPORT_SYMBOL_GPL(copy_bpf_fprog_from_user);
/**
* sk_filter_trim_cap - run a packet through a socket filter
* @sk: sock associated with &sk_buff

72
net/core/sock.c
View File

@ -1059,19 +1059,14 @@ set_sndbuf:
ret = sock_set_timeout(&sk->sk_sndtimeo, optval, optlen, optname == SO_SNDTIMEO_OLD);
break;
case SO_ATTACH_FILTER:
ret = -EINVAL;
if (optlen == sizeof(struct sock_fprog)) {
struct sock_fprog fprog;
ret = -EFAULT;
if (copy_from_user(&fprog, optval, sizeof(fprog)))
break;
case SO_ATTACH_FILTER: {
struct sock_fprog fprog;
ret = copy_bpf_fprog_from_user(&fprog, optval, optlen);
if (!ret)
ret = sk_attach_filter(&fprog, sk);
}
break;
}
case SO_ATTACH_BPF:
ret = -EINVAL;
if (optlen == sizeof(u32)) {
@ -1085,19 +1080,14 @@ set_sndbuf:
}
break;
case SO_ATTACH_REUSEPORT_CBPF:
ret = -EINVAL;
if (optlen == sizeof(struct sock_fprog)) {
struct sock_fprog fprog;
ret = -EFAULT;
if (copy_from_user(&fprog, optval, sizeof(fprog)))
break;
case SO_ATTACH_REUSEPORT_CBPF: {
struct sock_fprog fprog;
ret = copy_bpf_fprog_from_user(&fprog, optval, optlen);
if (!ret)
ret = sk_reuseport_attach_filter(&fprog, sk);
}
break;
}
case SO_ATTACH_REUSEPORT_EBPF:
ret = -EINVAL;
if (optlen == sizeof(u32)) {
@ -2793,20 +2783,6 @@ int sock_no_shutdown(struct socket *sock, int how)
}
EXPORT_SYMBOL(sock_no_shutdown);
int sock_no_setsockopt(struct socket *sock, int level, int optname,
char __user *optval, unsigned int optlen)
{
return -EOPNOTSUPP;
}
EXPORT_SYMBOL(sock_no_setsockopt);
int sock_no_getsockopt(struct socket *sock, int level, int optname,
char __user *optval, int __user *optlen)
{
return -EOPNOTSUPP;
}
EXPORT_SYMBOL(sock_no_getsockopt);
int sock_no_sendmsg(struct socket *sock, struct msghdr *m, size_t len)
{
return -EOPNOTSUPP;
@ -3213,20 +3189,6 @@ int sock_common_getsockopt(struct socket *sock, int level, int optname,
}
EXPORT_SYMBOL(sock_common_getsockopt);
#ifdef CONFIG_COMPAT
int compat_sock_common_getsockopt(struct socket *sock, int level, int optname,
char __user *optval, int __user *optlen)
{
struct sock *sk = sock->sk;
if (sk->sk_prot->compat_getsockopt != NULL)
return sk->sk_prot->compat_getsockopt(sk, level, optname,
optval, optlen);
return sk->sk_prot->getsockopt(sk, level, optname, optval, optlen);
}
EXPORT_SYMBOL(compat_sock_common_getsockopt);
#endif
int sock_common_recvmsg(struct socket *sock, struct msghdr *msg, size_t size,
int flags)
{
@ -3254,20 +3216,6 @@ int sock_common_setsockopt(struct socket *sock, int level, int optname,
}
EXPORT_SYMBOL(sock_common_setsockopt);
#ifdef CONFIG_COMPAT
int compat_sock_common_setsockopt(struct socket *sock, int level, int optname,
char __user *optval, unsigned int optlen)
{
struct sock *sk = sock->sk;
if (sk->sk_prot->compat_setsockopt != NULL)
return sk->sk_prot->compat_setsockopt(sk, level, optname,
optval, optlen);
return sk->sk_prot->setsockopt(sk, level, optname, optval, optlen);
}
EXPORT_SYMBOL(compat_sock_common_setsockopt);
#endif
void sk_common_release(struct sock *sk)
{
if (sk->sk_prot->destroy)

6
net/dccp/dccp.h
View File

@ -296,12 +296,6 @@ int dccp_getsockopt(struct sock *sk, int level, int optname,
char __user *optval, int __user *optlen);
int dccp_setsockopt(struct sock *sk, int level, int optname,
char __user *optval, unsigned int optlen);
#ifdef CONFIG_COMPAT
int compat_dccp_getsockopt(struct sock *sk, int level, int optname,
char __user *optval, int __user *optlen);
int compat_dccp_setsockopt(struct sock *sk, int level, int optname,
char __user *optval, unsigned int optlen);
#endif
int dccp_ioctl(struct sock *sk, int cmd, unsigned long arg);
int dccp_sendmsg(struct sock *sk, struct msghdr *msg, size_t size);
int dccp_recvmsg(struct sock *sk, struct msghdr *msg, size_t len, int nonblock,

12
net/dccp/ipv4.c
View File

@ -913,10 +913,6 @@ static const struct inet_connection_sock_af_ops dccp_ipv4_af_ops = {
.getsockopt = ip_getsockopt,
.addr2sockaddr = inet_csk_addr2sockaddr,
.sockaddr_len = sizeof(struct sockaddr_in),
#ifdef CONFIG_COMPAT
.compat_setsockopt = compat_ip_setsockopt,
.compat_getsockopt = compat_ip_getsockopt,
#endif
};
static int dccp_v4_init_sock(struct sock *sk)
@ -963,10 +959,6 @@ static struct proto dccp_v4_prot = {
.rsk_prot = &dccp_request_sock_ops,
.twsk_prot = &dccp_timewait_sock_ops,
.h.hashinfo = &dccp_hashinfo,
#ifdef CONFIG_COMPAT
.compat_setsockopt = compat_dccp_setsockopt,
.compat_getsockopt = compat_dccp_getsockopt,
#endif
};
static const struct net_protocol dccp_v4_protocol = {
@ -999,10 +991,6 @@ static const struct proto_ops inet_dccp_ops = {
.recvmsg = sock_common_recvmsg,
.mmap = sock_no_mmap,
.sendpage = sock_no_sendpage,
#ifdef CONFIG_COMPAT
.compat_setsockopt = compat_sock_common_setsockopt,
.compat_getsockopt = compat_sock_common_getsockopt,
#endif
};
static struct inet_protosw dccp_v4_protosw = {

14
net/dccp/ipv6.c
View File

@ -970,10 +970,6 @@ static const struct inet_connection_sock_af_ops dccp_ipv6_af_ops = {
.getsockopt = ipv6_getsockopt,
.addr2sockaddr = inet6_csk_addr2sockaddr,
.sockaddr_len = sizeof(struct sockaddr_in6),
#ifdef CONFIG_COMPAT
.compat_setsockopt = compat_ipv6_setsockopt,
.compat_getsockopt = compat_ipv6_getsockopt,
#endif
};
/*
@ -990,10 +986,6 @@ static const struct inet_connection_sock_af_ops dccp_ipv6_mapped = {
.getsockopt = ipv6_getsockopt,
.addr2sockaddr = inet6_csk_addr2sockaddr,
.sockaddr_len = sizeof(struct sockaddr_in6),
#ifdef CONFIG_COMPAT
.compat_setsockopt = compat_ipv6_setsockopt,
.compat_getsockopt = compat_ipv6_getsockopt,
#endif
};
/* NOTE: A lot of things set to zero explicitly by call to
@ -1049,10 +1041,6 @@ static struct proto dccp_v6_prot = {
.rsk_prot = &dccp6_request_sock_ops,
.twsk_prot = &dccp6_timewait_sock_ops,
.h.hashinfo = &dccp_hashinfo,
#ifdef CONFIG_COMPAT
.compat_setsockopt = compat_dccp_setsockopt,
.compat_getsockopt = compat_dccp_getsockopt,
#endif
};
static const struct inet6_protocol dccp_v6_protocol = {
@ -1083,8 +1071,6 @@ static const struct proto_ops inet6_dccp_ops = {
.sendpage = sock_no_sendpage,
#ifdef CONFIG_COMPAT
.compat_ioctl = inet6_compat_ioctl,
.compat_setsockopt = compat_sock_common_setsockopt,
.compat_getsockopt = compat_sock_common_getsockopt,
#endif
};

26
net/dccp/proto.c
View File

@ -575,19 +575,6 @@ int dccp_setsockopt(struct sock *sk, int level, int optname,
EXPORT_SYMBOL_GPL(dccp_setsockopt);
#ifdef CONFIG_COMPAT
int compat_dccp_setsockopt(struct sock *sk, int level, int optname,
char __user *optval, unsigned int optlen)
{
if (level != SOL_DCCP)
return inet_csk_compat_setsockopt(sk, level, optname,
optval, optlen);
return do_dccp_setsockopt(sk, level, optname, optval, optlen);
}
EXPORT_SYMBOL_GPL(compat_dccp_setsockopt);
#endif
static int dccp_getsockopt_service(struct sock *sk, int len,
__be32 __user *optval,
int __user *optlen)
@ -696,19 +683,6 @@ int dccp_getsockopt(struct sock *sk, int level, int optname,
EXPORT_SYMBOL_GPL(dccp_getsockopt);
#ifdef CONFIG_COMPAT
int compat_dccp_getsockopt(struct sock *sk, int level, int optname,
char __user *optval, int __user *optlen)
{
if (level != SOL_DCCP)
return inet_csk_compat_getsockopt(sk, level, optname,
optval, optlen);
return do_dccp_getsockopt(sk, level, optname, optval, optlen);
}
EXPORT_SYMBOL_GPL(compat_dccp_getsockopt);
#endif
static int dccp_msghdr_parse(struct msghdr *msg, struct sk_buff *skb)
{
struct cmsghdr *cmsg;

8
net/ieee802154/socket.c
View File

@ -423,10 +423,6 @@ static const struct proto_ops ieee802154_raw_ops = {
.recvmsg = sock_common_recvmsg,
.mmap = sock_no_mmap,
.sendpage = sock_no_sendpage,
#ifdef CONFIG_COMPAT
.compat_setsockopt = compat_sock_common_setsockopt,
.compat_getsockopt = compat_sock_common_getsockopt,
#endif
};
/* DGRAM Sockets (802.15.4 dataframes) */
@ -986,10 +982,6 @@ static const struct proto_ops ieee802154_dgram_ops = {
.recvmsg = sock_common_recvmsg,
.mmap = sock_no_mmap,
.sendpage = sock_no_sendpage,
#ifdef CONFIG_COMPAT
.compat_setsockopt = compat_sock_common_setsockopt,
.compat_getsockopt = compat_sock_common_getsockopt,
#endif
};
/* Create a socket. Initialise the socket, blank the addresses

6
net/ipv4/af_inet.c
View File

@ -1043,8 +1043,6 @@ const struct proto_ops inet_stream_ops = {
.sendpage_locked = tcp_sendpage_locked,
.peek_len = tcp_peek_len,
#ifdef CONFIG_COMPAT
.compat_setsockopt = compat_sock_common_setsockopt,
.compat_getsockopt = compat_sock_common_getsockopt,
.compat_ioctl = inet_compat_ioctl,
#endif
.set_rcvlowat = tcp_set_rcvlowat,
@ -1073,8 +1071,6 @@ const struct proto_ops inet_dgram_ops = {
.sendpage = inet_sendpage,
.set_peek_off = sk_set_peek_off,
#ifdef CONFIG_COMPAT
.compat_setsockopt = compat_sock_common_setsockopt,
.compat_getsockopt = compat_sock_common_getsockopt,
.compat_ioctl = inet_compat_ioctl,
#endif
};
@ -1105,8 +1101,6 @@ static const struct proto_ops inet_sockraw_ops = {
.mmap = sock_no_mmap,
.sendpage = inet_sendpage,
#ifdef CONFIG_COMPAT
.compat_setsockopt = compat_sock_common_setsockopt,
.compat_getsockopt = compat_sock_common_getsockopt,
.compat_ioctl = inet_compat_ioctl,
#endif
};

28
net/ipv4/inet_connection_sock.c
View File

@ -1057,34 +1057,6 @@ void inet_csk_addr2sockaddr(struct sock *sk, struct sockaddr *uaddr)
}
EXPORT_SYMBOL_GPL(inet_csk_addr2sockaddr);
#ifdef CONFIG_COMPAT
int inet_csk_compat_getsockopt(struct sock *sk, int level, int optname,
char __user *optval, int __user *optlen)
{
const struct inet_connection_sock *icsk = inet_csk(sk);
if (icsk->icsk_af_ops->compat_getsockopt)
return icsk->icsk_af_ops->compat_getsockopt(sk, level, optname,
optval, optlen);
return icsk->icsk_af_ops->getsockopt(sk, level, optname,
optval, optlen);
}
EXPORT_SYMBOL_GPL(inet_csk_compat_getsockopt);
int inet_csk_compat_setsockopt(struct sock *sk, int level, int optname,
char __user *optval, unsigned int optlen)
{
const struct inet_connection_sock *icsk = inet_csk(sk);
if (icsk->icsk_af_ops->compat_setsockopt)
return icsk->icsk_af_ops->compat_setsockopt(sk, level, optname,
optval, optlen);
return icsk->icsk_af_ops->setsockopt(sk, level, optname,
optval, optlen);
}
EXPORT_SYMBOL_GPL(inet_csk_compat_setsockopt);
#endif
static struct dst_entry *inet_csk_rebuild_route(struct sock *sk, struct flowi *fl)
{
const struct inet_sock *inet = inet_sk(sk);

543
net/ipv4/ip_sockglue.c
View File

@ -679,20 +679,48 @@ Eaddrnotavail:
return -EADDRNOTAVAIL;
}
static int do_mcast_group_source(struct sock *sk, int optname,
struct group_source_req *greqs)
static int copy_group_source_from_user(struct group_source_req *greqs,
void __user *optval, int optlen)
{
if (in_compat_syscall()) {
struct compat_group_source_req gr32;
if (optlen != sizeof(gr32))
return -EINVAL;
if (copy_from_user(&gr32, optval, sizeof(gr32)))
return -EFAULT;
greqs->gsr_interface = gr32.gsr_interface;
greqs->gsr_group = gr32.gsr_group;
greqs->gsr_source = gr32.gsr_source;
} else {
if (optlen != sizeof(*greqs))
return -EINVAL;
if (copy_from_user(greqs, optval, sizeof(*greqs)))
return -EFAULT;
}
return 0;
}
static int do_mcast_group_source(struct sock *sk, int optname,
void __user *optval, int optlen)
{
struct group_source_req greqs;
struct ip_mreq_source mreqs;
struct sockaddr_in *psin;
int omode, add, err;
if (greqs->gsr_group.ss_family != AF_INET ||
greqs->gsr_source.ss_family != AF_INET)
err = copy_group_source_from_user(&greqs, optval, optlen);
if (err)
return err;
if (greqs.gsr_group.ss_family != AF_INET ||
greqs.gsr_source.ss_family != AF_INET)
return -EADDRNOTAVAIL;
psin = (struct sockaddr_in *)&greqs->gsr_group;
psin = (struct sockaddr_in *)&greqs.gsr_group;
mreqs.imr_multiaddr = psin->sin_addr.s_addr;
psin = (struct sockaddr_in *)&greqs->gsr_source;
psin = (struct sockaddr_in *)&greqs.gsr_source;
mreqs.imr_sourceaddr = psin->sin_addr.s_addr;
mreqs.imr_interface = 0; /* use index for mc_source */
@ -705,21 +733,142 @@ static int do_mcast_group_source(struct sock *sk, int optname,
} else if (optname == MCAST_JOIN_SOURCE_GROUP) {
struct ip_mreqn mreq;
psin = (struct sockaddr_in *)&greqs->gsr_group;
psin = (struct sockaddr_in *)&greqs.gsr_group;
mreq.imr_multiaddr = psin->sin_addr;
mreq.imr_address.s_addr = 0;
mreq.imr_ifindex = greqs->gsr_interface;
mreq.imr_ifindex = greqs.gsr_interface;
err = ip_mc_join_group_ssm(sk, &mreq, MCAST_INCLUDE);
if (err && err != -EADDRINUSE)
return err;
greqs->gsr_interface = mreq.imr_ifindex;
greqs.gsr_interface = mreq.imr_ifindex;
omode = MCAST_INCLUDE;
add = 1;
} else /* MCAST_LEAVE_SOURCE_GROUP */ {
omode = MCAST_INCLUDE;
add = 0;
}
return ip_mc_source(add, omode, sk, &mreqs, greqs->gsr_interface);
return ip_mc_source(add, omode, sk, &mreqs, greqs.gsr_interface);
}
static int ip_set_mcast_msfilter(struct sock *sk, void __user *optval,
int optlen)
{
struct group_filter *gsf = NULL;
int err;
if (optlen < GROUP_FILTER_SIZE(0))
return -EINVAL;
if (optlen > sysctl_optmem_max)
return -ENOBUFS;
gsf = memdup_user(optval, optlen);
if (IS_ERR(gsf))
return PTR_ERR(gsf);
/* numsrc >= (4G-140)/128 overflow in 32 bits */
err = -ENOBUFS;
if (gsf->gf_numsrc >= 0x1ffffff ||
gsf->gf_numsrc > sock_net(sk)->ipv4.sysctl_igmp_max_msf)
goto out_free_gsf;
err = -EINVAL;
if (GROUP_FILTER_SIZE(gsf->gf_numsrc) > optlen)
goto out_free_gsf;
err = set_mcast_msfilter(sk, gsf->gf_interface, gsf->gf_numsrc,
gsf->gf_fmode, &gsf->gf_group, gsf->gf_slist);
out_free_gsf:
kfree(gsf);
return err;
}
static int compat_ip_set_mcast_msfilter(struct sock *sk, void __user *optval,
int optlen)
{
const int size0 = offsetof(struct compat_group_filter, gf_slist);
struct compat_group_filter *gf32;
unsigned int n;
void *p;
int err;
if (optlen < size0)
return -EINVAL;
if (optlen > sysctl_optmem_max - 4)
return -ENOBUFS;
p = kmalloc(optlen + 4, GFP_KERNEL);
if (!p)
return -ENOMEM;
gf32 = p + 4; /* we want ->gf_group and ->gf_slist aligned */
err = -EFAULT;
if (copy_from_user(gf32, optval, optlen))
goto out_free_gsf;
/* numsrc >= (4G-140)/128 overflow in 32 bits */
n = gf32->gf_numsrc;
err = -ENOBUFS;
if (n >= 0x1ffffff)
goto out_free_gsf;
err = -EINVAL;
if (offsetof(struct compat_group_filter, gf_slist[n]) > optlen)
goto out_free_gsf;
/* numsrc >= (4G-140)/128 overflow in 32 bits */
err = -ENOBUFS;
if (n > sock_net(sk)->ipv4.sysctl_igmp_max_msf)
goto out_free_gsf;
err = set_mcast_msfilter(sk, gf32->gf_interface, n, gf32->gf_fmode,
&gf32->gf_group, gf32->gf_slist);
out_free_gsf:
kfree(p);
return err;
}
static int ip_mcast_join_leave(struct sock *sk, int optname,
void __user *optval, int optlen)
{
struct ip_mreqn mreq = { };
struct sockaddr_in *psin;
struct group_req greq;
if (optlen < sizeof(struct group_req))
return -EINVAL;
if (copy_from_user(&greq, optval, sizeof(greq)))
return -EFAULT;
psin = (struct sockaddr_in *)&greq.gr_group;
if (psin->sin_family != AF_INET)
return -EINVAL;
mreq.imr_multiaddr = psin->sin_addr;
mreq.imr_ifindex = greq.gr_interface;
if (optname == MCAST_JOIN_GROUP)
return ip_mc_join_group(sk, &mreq);
return ip_mc_leave_group(sk, &mreq);
}
static int compat_ip_mcast_join_leave(struct sock *sk, int optname,
void __user *optval, int optlen)
{
struct compat_group_req greq;
struct ip_mreqn mreq = { };
struct sockaddr_in *psin;
if (optlen < sizeof(struct compat_group_req))
return -EINVAL;
if (copy_from_user(&greq, optval, sizeof(greq)))
return -EFAULT;
psin = (struct sockaddr_in *)&greq.gr_group;
if (psin->sin_family != AF_INET)
return -EINVAL;
mreq.imr_multiaddr = psin->sin_addr;
mreq.imr_ifindex = greq.gr_interface;
if (optname == MCAST_JOIN_GROUP)
return ip_mc_join_group(sk, &mreq);
return ip_mc_leave_group(sk, &mreq);
}
static int do_ip_setsockopt(struct sock *sk, int level,
@ -1127,77 +1276,24 @@ static int do_ip_setsockopt(struct sock *sk, int level,
}
case MCAST_JOIN_GROUP:
case MCAST_LEAVE_GROUP:
{
struct group_req greq;
struct sockaddr_in *psin;
struct ip_mreqn mreq;
if (optlen < sizeof(struct group_req))
goto e_inval;
err = -EFAULT;
if (copy_from_user(&greq, optval, sizeof(greq)))
break;
psin = (struct sockaddr_in *)&greq.gr_group;
if (psin->sin_family != AF_INET)
goto e_inval;
memset(&mreq, 0, sizeof(mreq));
mreq.imr_multiaddr = psin->sin_addr;
mreq.imr_ifindex = greq.gr_interface;
if (optname == MCAST_JOIN_GROUP)
err = ip_mc_join_group(sk, &mreq);
if (in_compat_syscall())
err = compat_ip_mcast_join_leave(sk, optname, optval,
optlen);
else
err = ip_mc_leave_group(sk, &mreq);
err = ip_mcast_join_leave(sk, optname, optval, optlen);
break;
}
case MCAST_JOIN_SOURCE_GROUP:
case MCAST_LEAVE_SOURCE_GROUP:
case MCAST_BLOCK_SOURCE:
case MCAST_UNBLOCK_SOURCE:
{
struct group_source_req greqs;
if (optlen != sizeof(struct group_source_req))
goto e_inval;
if (copy_from_user(&greqs, optval, sizeof(greqs))) {
err = -EFAULT;
break;
}
err = do_mcast_group_source(sk, optname, &greqs);
err = do_mcast_group_source(sk, optname, optval, optlen);
break;
}
case MCAST_MSFILTER:
{
struct group_filter *gsf = NULL;
if (optlen < GROUP_FILTER_SIZE(0))
goto e_inval;
if (optlen > sysctl_optmem_max) {
err = -ENOBUFS;
break;
}
gsf = memdup_user(optval, optlen);
if (IS_ERR(gsf)) {
err = PTR_ERR(gsf);
break;
}
/* numsrc >= (4G-140)/128 overflow in 32 bits */
if (gsf->gf_numsrc >= 0x1ffffff ||
gsf->gf_numsrc > net->ipv4.sysctl_igmp_max_msf) {
err = -ENOBUFS;
goto mc_msf_out;
}
if (GROUP_FILTER_SIZE(gsf->gf_numsrc) > optlen) {
err = -EINVAL;
goto mc_msf_out;
}
err = set_mcast_msfilter(sk, gsf->gf_interface,
gsf->gf_numsrc, gsf->gf_fmode,
&gsf->gf_group, gsf->gf_slist);
mc_msf_out:
kfree(gsf);
if (in_compat_syscall())
err = compat_ip_set_mcast_msfilter(sk, optval, optlen);
else
err = ip_set_mcast_msfilter(sk, optval, optlen);
break;
}
case IP_MULTICAST_ALL:
if (optlen < 1)
goto e_inval;
@ -1322,138 +1418,6 @@ int ip_setsockopt(struct sock *sk, int level,
}
EXPORT_SYMBOL(ip_setsockopt);
#ifdef CONFIG_COMPAT
int compat_ip_setsockopt(struct sock *sk, int level, int optname,
char __user *optval, unsigned int optlen)
{
int err;
if (level != SOL_IP)
return -ENOPROTOOPT;
switch (optname) {
case MCAST_JOIN_GROUP:
case MCAST_LEAVE_GROUP:
{
struct compat_group_req __user *gr32 = (void __user *)optval;
struct group_req greq;
struct sockaddr_in *psin = (struct sockaddr_in *)&greq.gr_group;
struct ip_mreqn mreq;
if (optlen < sizeof(struct compat_group_req))
return -EINVAL;
if (get_user(greq.gr_interface, &gr32->gr_interface) ||
copy_from_user(&greq.gr_group, &gr32->gr_group,
sizeof(greq.gr_group)))
return -EFAULT;
if (psin->sin_family != AF_INET)
return -EINVAL;
memset(&mreq, 0, sizeof(mreq));
mreq.imr_multiaddr = psin->sin_addr;
mreq.imr_ifindex = greq.gr_interface;
rtnl_lock();
lock_sock(sk);
if (optname == MCAST_JOIN_GROUP)
err = ip_mc_join_group(sk, &mreq);
else
err = ip_mc_leave_group(sk, &mreq);
release_sock(sk);
rtnl_unlock();
return err;
}
case MCAST_JOIN_SOURCE_GROUP:
case MCAST_LEAVE_SOURCE_GROUP:
case MCAST_BLOCK_SOURCE:
case MCAST_UNBLOCK_SOURCE:
{
struct compat_group_source_req __user *gsr32 = (void __user *)optval;
struct group_source_req greqs;
if (optlen != sizeof(struct compat_group_source_req))
return -EINVAL;
if (get_user(greqs.gsr_interface, &gsr32->gsr_interface) ||
copy_from_user(&greqs.gsr_group, &gsr32->gsr_group,
sizeof(greqs.gsr_group)) ||
copy_from_user(&greqs.gsr_source, &gsr32->gsr_source,
sizeof(greqs.gsr_source)))
return -EFAULT;
rtnl_lock();
lock_sock(sk);
err = do_mcast_group_source(sk, optname, &greqs);
release_sock(sk);
rtnl_unlock();
return err;
}
case MCAST_MSFILTER:
{
const int size0 = offsetof(struct compat_group_filter, gf_slist);
struct compat_group_filter *gf32;
unsigned int n;
void *p;
if (optlen < size0)
return -EINVAL;
if (optlen > sysctl_optmem_max - 4)
return -ENOBUFS;
p = kmalloc(optlen + 4, GFP_KERNEL);
if (!p)
return -ENOMEM;
gf32 = p + 4; /* we want ->gf_group and ->gf_slist aligned */
if (copy_from_user(gf32, optval, optlen)) {
err = -EFAULT;
goto mc_msf_out;
}
n = gf32->gf_numsrc;
/* numsrc >= (4G-140)/128 overflow in 32 bits */
if (n >= 0x1ffffff) {
err = -ENOBUFS;
goto mc_msf_out;
}
if (offsetof(struct compat_group_filter, gf_slist[n]) > optlen) {
err = -EINVAL;
goto mc_msf_out;
}
rtnl_lock();
lock_sock(sk);
/* numsrc >= (4G-140)/128 overflow in 32 bits */
if (n > sock_net(sk)->ipv4.sysctl_igmp_max_msf)
err = -ENOBUFS;
else
err = set_mcast_msfilter(sk, gf32->gf_interface,
n, gf32->gf_fmode,
&gf32->gf_group, gf32->gf_slist);
release_sock(sk);
rtnl_unlock();
mc_msf_out:
kfree(p);
return err;
}
}
err = do_ip_setsockopt(sk, level, optname, optval, optlen);
#ifdef CONFIG_NETFILTER
/* we need to exclude all possible ENOPROTOOPTs except default case */
if (err == -ENOPROTOOPT && optname != IP_HDRINCL &&
optname != IP_IPSEC_POLICY &&
optname != IP_XFRM_POLICY &&
!ip_mroute_opt(optname))
err = compat_nf_setsockopt(sk, PF_INET, optname, optval,
optlen);
#endif
return err;
}
EXPORT_SYMBOL(compat_ip_setsockopt);
#endif
/*
* Get the options. Note for future reference. The GET of IP options gets
* the _received_ ones. The set sets the _sent_ ones.
@ -1469,8 +1433,67 @@ static bool getsockopt_needs_rtnl(int optname)
return false;
}
static int ip_get_mcast_msfilter(struct sock *sk, void __user *optval,
int __user *optlen, int len)
{
const int size0 = offsetof(struct group_filter, gf_slist);
struct group_filter __user *p = optval;
struct group_filter gsf;
int num;
int err;
if (len < size0)
return -EINVAL;
if (copy_from_user(&gsf, p, size0))
return -EFAULT;
num = gsf.gf_numsrc;
err = ip_mc_gsfget(sk, &gsf, p->gf_slist);
if (err)
return err;
if (gsf.gf_numsrc < num)
num = gsf.gf_numsrc;
if (put_user(GROUP_FILTER_SIZE(num), optlen) ||
copy_to_user(p, &gsf, size0))
return -EFAULT;
return 0;
}
static int compat_ip_get_mcast_msfilter(struct sock *sk, void __user *optval,
int __user *optlen, int len)
{
const int size0 = offsetof(struct compat_group_filter, gf_slist);
struct compat_group_filter __user *p = optval;
struct compat_group_filter gf32;
struct group_filter gf;
int num;
int err;
if (len < size0)
return -EINVAL;
if (copy_from_user(&gf32, p, size0))
return -EFAULT;
gf.gf_interface = gf32.gf_interface;
gf.gf_fmode = gf32.gf_fmode;
num = gf.gf_numsrc = gf32.gf_numsrc;
gf.gf_group = gf32.gf_group;
err = ip_mc_gsfget(sk, &gf, p->gf_slist);
if (err)
return err;
if (gf.gf_numsrc < num)
num = gf.gf_numsrc;
len = GROUP_FILTER_SIZE(num) - (sizeof(gf) - sizeof(gf32));
if (put_user(len, optlen) ||
put_user(gf.gf_fmode, &p->gf_fmode) ||
put_user(gf.gf_numsrc, &p->gf_numsrc))
return -EFAULT;
return 0;
}
static int do_ip_getsockopt(struct sock *sk, int level, int optname,
char __user *optval, int __user *optlen, unsigned int flags)
char __user *optval, int __user *optlen)
{
struct inet_sock *inet = inet_sk(sk);
bool needs_rtnl = getsockopt_needs_rtnl(optname);
@ -1627,31 +1650,12 @@ static int do_ip_getsockopt(struct sock *sk, int level, int optname,
goto out;
}
case MCAST_MSFILTER:
{
struct group_filter __user *p = (void __user *)optval;
struct group_filter gsf;
const int size0 = offsetof(struct group_filter, gf_slist);
int num;
if (len < size0) {
err = -EINVAL;
goto out;
}
if (copy_from_user(&gsf, p, size0)) {
err = -EFAULT;
goto out;
}
num = gsf.gf_numsrc;
err = ip_mc_gsfget(sk, &gsf, p->gf_slist);
if (err)
goto out;
if (gsf.gf_numsrc < num)
num = gsf.gf_numsrc;
if (put_user(GROUP_FILTER_SIZE(num), optlen) ||
copy_to_user(p, &gsf, size0))
err = -EFAULT;
if (in_compat_syscall())
err = compat_ip_get_mcast_msfilter(sk, optval, optlen,
len);
else
err = ip_get_mcast_msfilter(sk, optval, optlen, len);
goto out;
}
case IP_MULTICAST_ALL:
val = inet->mc_all;
break;
@ -1667,7 +1671,7 @@ static int do_ip_getsockopt(struct sock *sk, int level, int optname,
msg.msg_control_is_user = true;
msg.msg_control_user = optval;
msg.msg_controllen = len;
msg.msg_flags = flags;
msg.msg_flags = in_compat_syscall() ? MSG_CMSG_COMPAT : 0;
if (inet->cmsg_flags & IP_CMSG_PKTINFO) {
struct in_pktinfo info;
@ -1731,7 +1735,8 @@ int ip_getsockopt(struct sock *sk, int level,
{
int err;
err = do_ip_getsockopt(sk, level, optname, optval, optlen, 0);
err = do_ip_getsockopt(sk, level, optname, optval, optlen);
#if IS_ENABLED(CONFIG_BPFILTER_UMH)
if (optname >= BPFILTER_IPT_SO_GET_INFO &&
optname < BPFILTER_IPT_GET_MAX)
@ -1755,79 +1760,3 @@ int ip_getsockopt(struct sock *sk, int level,
return err;
}
EXPORT_SYMBOL(ip_getsockopt);
#ifdef CONFIG_COMPAT
int compat_ip_getsockopt(struct sock *sk, int level, int optname,
char __user *optval, int __user *optlen)
{
int err;
if (optname == MCAST_MSFILTER) {
const int size0 = offsetof(struct compat_group_filter, gf_slist);
struct compat_group_filter __user *p = (void __user *)optval;
struct compat_group_filter gf32;
struct group_filter gf;
int ulen, err;
int num;
if (level != SOL_IP)
return -EOPNOTSUPP;
if (get_user(ulen, optlen))
return -EFAULT;
if (ulen < size0)
return -EINVAL;
if (copy_from_user(&gf32, p, size0))
return -EFAULT;
gf.gf_interface = gf32.gf_interface;
gf.gf_fmode = gf32.gf_fmode;
num = gf.gf_numsrc = gf32.gf_numsrc;
gf.gf_group = gf32.gf_group;
rtnl_lock();
lock_sock(sk);
err = ip_mc_gsfget(sk, &gf, p->gf_slist);
release_sock(sk);
rtnl_unlock();
if (err)
return err;
if (gf.gf_numsrc < num)
num = gf.gf_numsrc;
ulen = GROUP_FILTER_SIZE(num) - (sizeof(gf) - sizeof(gf32));
if (put_user(ulen, optlen) ||
put_user(gf.gf_fmode, &p->gf_fmode) ||
put_user(gf.gf_numsrc, &p->gf_numsrc))
return -EFAULT;
return 0;
}
err = do_ip_getsockopt(sk, level, optname, optval, optlen,
MSG_CMSG_COMPAT);
#if IS_ENABLED(CONFIG_BPFILTER_UMH)
if (optname >= BPFILTER_IPT_SO_GET_INFO &&
optname < BPFILTER_IPT_GET_MAX)
err = bpfilter_ip_get_sockopt(sk, optname, optval, optlen);
#endif
#ifdef CONFIG_NETFILTER
/* we need to exclude all possible ENOPROTOOPTs except default case */
if (err == -ENOPROTOOPT && optname != IP_PKTOPTIONS &&
!ip_mroute_opt(optname)) {
int len;
if (get_user(len, optlen))
return -EFAULT;
err = compat_nf_getsockopt(sk, PF_INET, optname, optval, &len);
if (err >= 0)
err = put_user(len, optlen);
return err;
}
#endif
return err;
}
EXPORT_SYMBOL(compat_ip_getsockopt);
#endif

84
net/ipv4/netfilter/arp_tables.c
View File

@ -787,8 +787,7 @@ static int compat_table_info(const struct xt_table_info *info,
}
#endif
static int get_info(struct net *net, void __user *user,
const int *len, int compat)
static int get_info(struct net *net, void __user *user, const int *len)
{
char name[XT_TABLE_MAXNAMELEN];
struct xt_table *t;
@ -802,7 +801,7 @@ static int get_info(struct net *net, void __user *user,
name[XT_TABLE_MAXNAMELEN-1] = '\0';
#ifdef CONFIG_COMPAT
if (compat)
if (in_compat_syscall())
xt_compat_lock(NFPROTO_ARP);
#endif
t = xt_request_find_table_lock(net, NFPROTO_ARP, name);
@ -812,7 +811,7 @@ static int get_info(struct net *net, void __user *user,
#ifdef CONFIG_COMPAT
struct xt_table_info tmp;
if (compat) {
if (in_compat_syscall()) {
ret = compat_table_info(private, &tmp);
xt_compat_flush_offsets(NFPROTO_ARP);
private = &tmp;
@ -837,7 +836,7 @@ static int get_info(struct net *net, void __user *user,
} else
ret = PTR_ERR(t);
#ifdef CONFIG_COMPAT
if (compat)
if (in_compat_syscall())
xt_compat_unlock(NFPROTO_ARP);
#endif
return ret;
@ -998,7 +997,7 @@ static int do_replace(struct net *net, const void __user *user,
}
static int do_add_counters(struct net *net, const void __user *user,
unsigned int len, int compat)
unsigned int len)
{
unsigned int i;
struct xt_counters_info tmp;
@ -1009,7 +1008,7 @@ static int do_add_counters(struct net *net, const void __user *user,
struct arpt_entry *iter;
unsigned int addend;
paddc = xt_copy_counters_from_user(user, len, &tmp, compat);
paddc = xt_copy_counters_from_user(user, len, &tmp);
if (IS_ERR(paddc))
return PTR_ERR(paddc);
@ -1294,30 +1293,6 @@ static int compat_do_replace(struct net *net, void __user *user,
return ret;
}
static int compat_do_arpt_set_ctl(struct sock *sk, int cmd, void __user *user,
unsigned int len)
{
int ret;
if (!ns_capable(sock_net(sk)->user_ns, CAP_NET_ADMIN))
return -EPERM;
switch (cmd) {
case ARPT_SO_SET_REPLACE:
ret = compat_do_replace(sock_net(sk), user, len);
break;
case ARPT_SO_SET_ADD_COUNTERS:
ret = do_add_counters(sock_net(sk), user, len, 1);
break;
default:
ret = -EINVAL;
}
return ret;
}
static int compat_copy_entry_to_user(struct arpt_entry *e, void __user **dstptr,
compat_uint_t *size,
struct xt_counters *counters,
@ -1425,29 +1400,6 @@ static int compat_get_entries(struct net *net,
xt_compat_unlock(NFPROTO_ARP);
return ret;
}
static int do_arpt_get_ctl(struct sock *, int, void __user *, int *);
static int compat_do_arpt_get_ctl(struct sock *sk, int cmd, void __user *user,
int *len)
{
int ret;
if (!ns_capable(sock_net(sk)->user_ns, CAP_NET_ADMIN))
return -EPERM;
switch (cmd) {
case ARPT_SO_GET_INFO:
ret = get_info(sock_net(sk), user, len, 1);
break;
case ARPT_SO_GET_ENTRIES:
ret = compat_get_entries(sock_net(sk), user, len);
break;
default:
ret = do_arpt_get_ctl(sk, cmd, user, len);
}
return ret;
}
#endif
static int do_arpt_set_ctl(struct sock *sk, int cmd, void __user *user, unsigned int len)
@ -1459,11 +1411,16 @@ static int do_arpt_set_ctl(struct sock *sk, int cmd, void __user *user, unsigned
switch (cmd) {
case ARPT_SO_SET_REPLACE:
ret = do_replace(sock_net(sk), user, len);
#ifdef CONFIG_COMPAT
if (in_compat_syscall())
ret = compat_do_replace(sock_net(sk), user, len);
else
#endif
ret = do_replace(sock_net(sk), user, len);
break;
case ARPT_SO_SET_ADD_COUNTERS:
ret = do_add_counters(sock_net(sk), user, len, 0);
ret = do_add_counters(sock_net(sk), user, len);
break;
default:
@ -1482,11 +1439,16 @@ static int do_arpt_get_ctl(struct sock *sk, int cmd, void __user *user, int *len
switch (cmd) {
case ARPT_SO_GET_INFO:
ret = get_info(sock_net(sk), user, len, 0);
ret = get_info(sock_net(sk), user, len);
break;
case ARPT_SO_GET_ENTRIES:
ret = get_entries(sock_net(sk), user, len);
#ifdef CONFIG_COMPAT
if (in_compat_syscall())
ret = compat_get_entries(sock_net(sk), user, len);
else
#endif
ret = get_entries(sock_net(sk), user, len);
break;
case ARPT_SO_GET_REVISION_TARGET: {
@ -1610,15 +1572,9 @@ static struct nf_sockopt_ops arpt_sockopts = {
.set_optmin = ARPT_BASE_CTL,
.set_optmax = ARPT_SO_SET_MAX+1,
.set = do_arpt_set_ctl,
#ifdef CONFIG_COMPAT
.compat_set = compat_do_arpt_set_ctl,
#endif
.get_optmin = ARPT_BASE_CTL,
.get_optmax = ARPT_SO_GET_MAX+1,
.get = do_arpt_get_ctl,
#ifdef CONFIG_COMPAT
.compat_get = compat_do_arpt_get_ctl,
#endif
.owner = THIS_MODULE,
};

85
net/ipv4/netfilter/ip_tables.c
View File

@ -944,8 +944,7 @@ static int compat_table_info(const struct xt_table_info *info,
}
#endif
static int get_info(struct net *net, void __user *user,
const int *len, int compat)
static int get_info(struct net *net, void __user *user, const int *len)
{
char name[XT_TABLE_MAXNAMELEN];
struct xt_table *t;
@ -959,7 +958,7 @@ static int get_info(struct net *net, void __user *user,
name[XT_TABLE_MAXNAMELEN-1] = '\0';
#ifdef CONFIG_COMPAT
if (compat)
if (in_compat_syscall())
xt_compat_lock(AF_INET);
#endif
t = xt_request_find_table_lock(net, AF_INET, name);
@ -969,7 +968,7 @@ static int get_info(struct net *net, void __user *user,
#ifdef CONFIG_COMPAT
struct xt_table_info tmp;
if (compat) {
if (in_compat_syscall()) {
ret = compat_table_info(private, &tmp);
xt_compat_flush_offsets(AF_INET);
private = &tmp;
@ -995,7 +994,7 @@ static int get_info(struct net *net, void __user *user,
} else
ret = PTR_ERR(t);
#ifdef CONFIG_COMPAT
if (compat)
if (in_compat_syscall())
xt_compat_unlock(AF_INET);
#endif
return ret;
@ -1153,7 +1152,7 @@ do_replace(struct net *net, const void __user *user, unsigned int len)
static int
do_add_counters(struct net *net, const void __user *user,
unsigned int len, int compat)
unsigned int len)
{
unsigned int i;
struct xt_counters_info tmp;
@ -1164,7 +1163,7 @@ do_add_counters(struct net *net, const void __user *user,
struct ipt_entry *iter;
unsigned int addend;
paddc = xt_copy_counters_from_user(user, len, &tmp, compat);
paddc = xt_copy_counters_from_user(user, len, &tmp);
if (IS_ERR(paddc))
return PTR_ERR(paddc);
@ -1534,31 +1533,6 @@ compat_do_replace(struct net *net, void __user *user, unsigned int len)
return ret;
}
static int
compat_do_ipt_set_ctl(struct sock *sk, int cmd, void __user *user,
unsigned int len)
{
int ret;
if (!ns_capable(sock_net(sk)->user_ns, CAP_NET_ADMIN))
return -EPERM;
switch (cmd) {
case IPT_SO_SET_REPLACE:
ret = compat_do_replace(sock_net(sk), user, len);
break;
case IPT_SO_SET_ADD_COUNTERS:
ret = do_add_counters(sock_net(sk), user, len, 1);
break;
default:
ret = -EINVAL;
}
return ret;
}
struct compat_ipt_get_entries {
char name[XT_TABLE_MAXNAMELEN];
compat_uint_t size;
@ -1634,29 +1608,6 @@ compat_get_entries(struct net *net, struct compat_ipt_get_entries __user *uptr,
xt_compat_unlock(AF_INET);
return ret;
}
static int do_ipt_get_ctl(struct sock *, int, void __user *, int *);
static int
compat_do_ipt_get_ctl(struct sock *sk, int cmd, void __user *user, int *len)
{
int ret;
if (!ns_capable(sock_net(sk)->user_ns, CAP_NET_ADMIN))
return -EPERM;
switch (cmd) {
case IPT_SO_GET_INFO:
ret = get_info(sock_net(sk), user, len, 1);
break;
case IPT_SO_GET_ENTRIES:
ret = compat_get_entries(sock_net(sk), user, len);
break;
default:
ret = do_ipt_get_ctl(sk, cmd, user, len);
}
return ret;
}
#endif
static int
@ -1669,11 +1620,16 @@ do_ipt_set_ctl(struct sock *sk, int cmd, void __user *user, unsigned int len)
switch (cmd) {
case IPT_SO_SET_REPLACE:
ret = do_replace(sock_net(sk), user, len);
#ifdef CONFIG_COMPAT
if (in_compat_syscall())
ret = compat_do_replace(sock_net(sk), user, len);
else
#endif
ret = do_replace(sock_net(sk), user, len);
break;
case IPT_SO_SET_ADD_COUNTERS:
ret = do_add_counters(sock_net(sk), user, len, 0);
ret = do_add_counters(sock_net(sk), user, len);
break;
default:
@ -1693,11 +1649,16 @@ do_ipt_get_ctl(struct sock *sk, int cmd, void __user *user, int *len)
switch (cmd) {
case IPT_SO_GET_INFO:
ret = get_info(sock_net(sk), user, len, 0);
ret = get_info(sock_net(sk), user, len);
break;
case IPT_SO_GET_ENTRIES:
ret = get_entries(sock_net(sk), user, len);
#ifdef CONFIG_COMPAT
if (in_compat_syscall())
ret = compat_get_entries(sock_net(sk), user, len);
else
#endif
ret = get_entries(sock_net(sk), user, len);
break;
case IPT_SO_GET_REVISION_MATCH:
@ -1886,15 +1847,9 @@ static struct nf_sockopt_ops ipt_sockopts = {
.set_optmin = IPT_BASE_CTL,
.set_optmax = IPT_SO_SET_MAX+1,
.set = do_ipt_set_ctl,
#ifdef CONFIG_COMPAT
.compat_set = compat_do_ipt_set_ctl,
#endif
.get_optmin = IPT_BASE_CTL,
.get_optmax = IPT_SO_GET_MAX+1,
.get = do_ipt_get_ctl,
#ifdef CONFIG_COMPAT
.compat_get = compat_do_ipt_get_ctl,
#endif
.owner = THIS_MODULE,
};

22
net/ipv4/raw.c
View File

@ -857,16 +857,6 @@ static int raw_setsockopt(struct sock *sk, int level, int optname,
return do_raw_setsockopt(sk, level, optname, optval, optlen);
}
#ifdef CONFIG_COMPAT
static int compat_raw_setsockopt(struct sock *sk, int level, int optname,
char __user *optval, unsigned int optlen)
{
if (level != SOL_RAW)
return compat_ip_setsockopt(sk, level, optname, optval, optlen);
return do_raw_setsockopt(sk, level, optname, optval, optlen);
}
#endif
static int do_raw_getsockopt(struct sock *sk, int level, int optname,
char __user *optval, int __user *optlen)
{
@ -887,16 +877,6 @@ static int raw_getsockopt(struct sock *sk, int level, int optname,
return do_raw_getsockopt(sk, level, optname, optval, optlen);
}
#ifdef CONFIG_COMPAT
static int compat_raw_getsockopt(struct sock *sk, int level, int optname,
char __user *optval, int __user *optlen)
{
if (level != SOL_RAW)
return compat_ip_getsockopt(sk, level, optname, optval, optlen);
return do_raw_getsockopt(sk, level, optname, optval, optlen);
}
#endif
static int raw_ioctl(struct sock *sk, int cmd, unsigned long arg)
{
switch (cmd) {
@ -980,8 +960,6 @@ struct proto raw_prot = {
.usersize = sizeof_field(struct raw_sock, filter),
.h.raw_hash = &raw_v4_hashinfo,
#ifdef CONFIG_COMPAT
.compat_setsockopt = compat_raw_setsockopt,
.compat_getsockopt = compat_raw_getsockopt,
.compat_ioctl = compat_raw_ioctl,
#endif
.diag_destroy = raw_abort,

24
net/ipv4/tcp.c
View File

@ -3337,18 +3337,6 @@ int tcp_setsockopt(struct sock *sk, int level, int optname, char __user *optval,
}
EXPORT_SYMBOL(tcp_setsockopt);
#ifdef CONFIG_COMPAT
int compat_tcp_setsockopt(struct sock *sk, int level, int optname,
char __user *optval, unsigned int optlen)
{
if (level != SOL_TCP)
return inet_csk_compat_setsockopt(sk, level, optname,
optval, optlen);
return do_tcp_setsockopt(sk, level, optname, optval, optlen);
}
EXPORT_SYMBOL(compat_tcp_setsockopt);
#endif
static void tcp_get_info_chrono_stats(const struct tcp_sock *tp,
struct tcp_info *info)
{
@ -3896,18 +3884,6 @@ int tcp_getsockopt(struct sock *sk, int level, int optname, char __user *optval,
}
EXPORT_SYMBOL(tcp_getsockopt);
#ifdef CONFIG_COMPAT
int compat_tcp_getsockopt(struct sock *sk, int level, int optname,
char __user *optval, int __user *optlen)
{
if (level != SOL_TCP)
return inet_csk_compat_getsockopt(sk, level, optname,
optval, optlen);
return do_tcp_getsockopt(sk, level, optname, optval, optlen);
}
EXPORT_SYMBOL(compat_tcp_getsockopt);
#endif
#ifdef CONFIG_TCP_MD5SIG
static DEFINE_PER_CPU(struct tcp_md5sig_pool, tcp_md5sig_pool);
static DEFINE_MUTEX(tcp_md5sig_mutex);

8
net/ipv4/tcp_ipv4.c
View File

@ -2134,10 +2134,6 @@ const struct inet_connection_sock_af_ops ipv4_specific = {
.getsockopt = ip_getsockopt,
.addr2sockaddr = inet_csk_addr2sockaddr,
.sockaddr_len = sizeof(struct sockaddr_in),
#ifdef CONFIG_COMPAT
.compat_setsockopt = compat_ip_setsockopt,
.compat_getsockopt = compat_ip_getsockopt,
#endif
.mtu_reduced = tcp_v4_mtu_reduced,
};
EXPORT_SYMBOL(ipv4_specific);
@ -2773,10 +2769,6 @@ struct proto tcp_prot = {
.rsk_prot = &tcp_request_sock_ops,
.h.hashinfo = &tcp_hashinfo,
.no_autobind = true,
#ifdef CONFIG_COMPAT
.compat_setsockopt = compat_tcp_setsockopt,
.compat_getsockopt = compat_tcp_getsockopt,
#endif
.diag_destroy = tcp_abort,
};
EXPORT_SYMBOL(tcp_prot);

24
net/ipv4/udp.c
View File

@ -2656,17 +2656,6 @@ int udp_setsockopt(struct sock *sk, int level, int optname,
return ip_setsockopt(sk, level, optname, optval, optlen);
}
#ifdef CONFIG_COMPAT
int compat_udp_setsockopt(struct sock *sk, int level, int optname,
char __user *optval, unsigned int optlen)
{
if (level == SOL_UDP || level == SOL_UDPLITE)
return udp_lib_setsockopt(sk, level, optname, optval, optlen,
udp_push_pending_frames);
return compat_ip_setsockopt(sk, level, optname, optval, optlen);
}
#endif
int udp_lib_getsockopt(struct sock *sk, int level, int optname,
char __user *optval, int __user *optlen)
{
@ -2732,15 +2721,6 @@ int udp_getsockopt(struct sock *sk, int level, int optname,
return ip_getsockopt(sk, level, optname, optval, optlen);
}
#ifdef CONFIG_COMPAT
int compat_udp_getsockopt(struct sock *sk, int level, int optname,
char __user *optval, int __user *optlen)
{
if (level == SOL_UDP || level == SOL_UDPLITE)
return udp_lib_getsockopt(sk, level, optname, optval, optlen);
return compat_ip_getsockopt(sk, level, optname, optval, optlen);
}
#endif
/**
* udp_poll - wait for a UDP event.
* @file: - file struct
@ -2812,10 +2792,6 @@ struct proto udp_prot = {
.sysctl_rmem_offset = offsetof(struct net, ipv4.sysctl_udp_rmem_min),
.obj_size = sizeof(struct udp_sock),
.h.udp_table = &udp_table,
#ifdef CONFIG_COMPAT
.compat_setsockopt = compat_udp_setsockopt,
.compat_getsockopt = compat_udp_getsockopt,
#endif
.diag_destroy = udp_abort,
};
EXPORT_SYMBOL(udp_prot);

6
net/ipv4/udp_impl.h
View File

@ -17,12 +17,6 @@ int udp_setsockopt(struct sock *sk, int level, int optname,
int udp_getsockopt(struct sock *sk, int level, int optname,
char __user *optval, int __user *optlen);
#ifdef CONFIG_COMPAT
int compat_udp_setsockopt(struct sock *sk, int level, int optname,
char __user *optval, unsigned int optlen);
int compat_udp_getsockopt(struct sock *sk, int level, int optname,
char __user *optval, int __user *optlen);
#endif
int udp_recvmsg(struct sock *sk, struct msghdr *msg, size_t len, int noblock,
int flags, int *addr_len);
int udp_sendpage(struct sock *sk, struct page *page, int offset, size_t size,

4
net/ipv4/udplite.c
View File

@ -56,10 +56,6 @@ struct proto udplite_prot = {
.sysctl_mem = sysctl_udp_mem,
.obj_size = sizeof(struct udp_sock),
.h.udp_table = &udplite_table,
#ifdef CONFIG_COMPAT
.compat_setsockopt = compat_udp_setsockopt,
.compat_getsockopt = compat_udp_getsockopt,
#endif
};
EXPORT_SYMBOL(udplite_prot);

4
net/ipv6/af_inet6.c
View File

@ -688,8 +688,6 @@ const struct proto_ops inet6_stream_ops = {
.peek_len = tcp_peek_len,
#ifdef CONFIG_COMPAT
.compat_ioctl = inet6_compat_ioctl,
.compat_setsockopt = compat_sock_common_setsockopt,
.compat_getsockopt = compat_sock_common_getsockopt,
#endif
.set_rcvlowat = tcp_set_rcvlowat,
};
@ -717,8 +715,6 @@ const struct proto_ops inet6_dgram_ops = {
.set_peek_off = sk_set_peek_off,
#ifdef CONFIG_COMPAT
.compat_ioctl = inet6_compat_ioctl,
.compat_setsockopt = compat_sock_common_setsockopt,
.compat_getsockopt = compat_sock_common_getsockopt,
#endif
};

541
net/ipv6/ipv6_sockglue.c
View File

@ -136,13 +136,42 @@ static bool setsockopt_needs_rtnl(int optname)
return false;
}
static int do_ipv6_mcast_group_source(struct sock *sk, int optname,
struct group_source_req *greqs)
static int copy_group_source_from_user(struct group_source_req *greqs,
void __user *optval, int optlen)
{
int omode, add;
if (in_compat_syscall()) {
struct compat_group_source_req gr32;
if (greqs->gsr_group.ss_family != AF_INET6 ||
greqs->gsr_source.ss_family != AF_INET6)
if (optlen < sizeof(gr32))
return -EINVAL;
if (copy_from_user(&gr32, optval, sizeof(gr32)))
return -EFAULT;
greqs->gsr_interface = gr32.gsr_interface;
greqs->gsr_group = gr32.gsr_group;
greqs->gsr_source = gr32.gsr_source;
} else {
if (optlen < sizeof(*greqs))
return -EINVAL;
if (copy_from_user(greqs, optval, sizeof(*greqs)))
return -EFAULT;
}
return 0;
}
static int do_ipv6_mcast_group_source(struct sock *sk, int optname,
void __user *optval, int optlen)
{
struct group_source_req greqs;
int omode, add;
int ret;
ret = copy_group_source_from_user(&greqs, optval, optlen);
if (ret)
return ret;
if (greqs.gsr_group.ss_family != AF_INET6 ||
greqs.gsr_source.ss_family != AF_INET6)
return -EADDRNOTAVAIL;
if (optname == MCAST_BLOCK_SOURCE) {
@ -155,8 +184,8 @@ static int do_ipv6_mcast_group_source(struct sock *sk, int optname,
struct sockaddr_in6 *psin6;
int retv;
psin6 = (struct sockaddr_in6 *)&greqs->gsr_group;
retv = ipv6_sock_mc_join_ssm(sk, greqs->gsr_interface,
psin6 = (struct sockaddr_in6 *)&greqs.gsr_group;
retv = ipv6_sock_mc_join_ssm(sk, greqs.gsr_interface,
&psin6->sin6_addr,
MCAST_INCLUDE);
/* prior join w/ different source is ok */
@ -168,7 +197,122 @@ static int do_ipv6_mcast_group_source(struct sock *sk, int optname,
omode = MCAST_INCLUDE;
add = 0;
}
return ip6_mc_source(add, omode, sk, greqs);
return ip6_mc_source(add, omode, sk, &greqs);
}
static int ipv6_set_mcast_msfilter(struct sock *sk, void __user *optval,
int optlen)
{
struct group_filter *gsf;
int ret;
if (optlen < GROUP_FILTER_SIZE(0))
return -EINVAL;
if (optlen > sysctl_optmem_max)
return -ENOBUFS;
gsf = memdup_user(optval, optlen);
if (IS_ERR(gsf))
return PTR_ERR(gsf);
/* numsrc >= (4G-140)/128 overflow in 32 bits */
ret = -ENOBUFS;
if (gsf->gf_numsrc >= 0x1ffffffU ||
gsf->gf_numsrc > sysctl_mld_max_msf)
goto out_free_gsf;
ret = -EINVAL;
if (GROUP_FILTER_SIZE(gsf->gf_numsrc) > optlen)
goto out_free_gsf;
ret = ip6_mc_msfilter(sk, gsf, gsf->gf_slist);
out_free_gsf:
kfree(gsf);
return ret;
}
static int compat_ipv6_set_mcast_msfilter(struct sock *sk, void __user *optval,
int optlen)
{
const int size0 = offsetof(struct compat_group_filter, gf_slist);
struct compat_group_filter *gf32;
void *p;
int ret;
int n;
if (optlen < size0)
return -EINVAL;
if (optlen > sysctl_optmem_max - 4)
return -ENOBUFS;
p = kmalloc(optlen + 4, GFP_KERNEL);
if (!p)
return -ENOMEM;
gf32 = p + 4; /* we want ->gf_group and ->gf_slist aligned */
ret = -EFAULT;
if (copy_from_user(gf32, optval, optlen))
goto out_free_p;
/* numsrc >= (4G-140)/128 overflow in 32 bits */
ret = -ENOBUFS;
n = gf32->gf_numsrc;
if (n >= 0x1ffffffU || n > sysctl_mld_max_msf)
goto out_free_p;
ret = -EINVAL;
if (offsetof(struct compat_group_filter, gf_slist[n]) > optlen)
goto out_free_p;
ret = ip6_mc_msfilter(sk, &(struct group_filter){
.gf_interface = gf32->gf_interface,
.gf_group = gf32->gf_group,
.gf_fmode = gf32->gf_fmode,
.gf_numsrc = gf32->gf_numsrc}, gf32->gf_slist);
out_free_p:
kfree(p);
return ret;
}
static int ipv6_mcast_join_leave(struct sock *sk, int optname,
void __user *optval, int optlen)
{
struct sockaddr_in6 *psin6;
struct group_req greq;
if (optlen < sizeof(greq))
return -EINVAL;
if (copy_from_user(&greq, optval, sizeof(greq)))
return -EFAULT;
if (greq.gr_group.ss_family != AF_INET6)
return -EADDRNOTAVAIL;
psin6 = (struct sockaddr_in6 *)&greq.gr_group;
if (optname == MCAST_JOIN_GROUP)
return ipv6_sock_mc_join(sk, greq.gr_interface,
&psin6->sin6_addr);
return ipv6_sock_mc_drop(sk, greq.gr_interface, &psin6->sin6_addr);
}
static int compat_ipv6_mcast_join_leave(struct sock *sk, int optname,
void __user *optval, int optlen)
{
struct compat_group_req gr32;
struct sockaddr_in6 *psin6;
if (optlen < sizeof(gr32))
return -EINVAL;
if (copy_from_user(&gr32, optval, sizeof(gr32)))
return -EFAULT;
if (gr32.gr_group.ss_family != AF_INET6)
return -EADDRNOTAVAIL;
psin6 = (struct sockaddr_in6 *)&gr32.gr_group;
if (optname == MCAST_JOIN_GROUP)
return ipv6_sock_mc_join(sk, gr32.gr_interface,
&psin6->sin6_addr);
return ipv6_sock_mc_drop(sk, gr32.gr_interface, &psin6->sin6_addr);
}
static int do_ipv6_setsockopt(struct sock *sk, int level, int optname,
@ -722,77 +866,26 @@ done:
case MCAST_JOIN_GROUP:
case MCAST_LEAVE_GROUP:
{
struct group_req greq;
struct sockaddr_in6 *psin6;
if (optlen < sizeof(struct group_req))
goto e_inval;
retv = -EFAULT;
if (copy_from_user(&greq, optval, sizeof(struct group_req)))
break;
if (greq.gr_group.ss_family != AF_INET6) {
retv = -EADDRNOTAVAIL;
break;
}
psin6 = (struct sockaddr_in6 *)&greq.gr_group;
if (optname == MCAST_JOIN_GROUP)
retv = ipv6_sock_mc_join(sk, greq.gr_interface,
&psin6->sin6_addr);
if (in_compat_syscall())
retv = compat_ipv6_mcast_join_leave(sk, optname, optval,
optlen);
else
retv = ipv6_sock_mc_drop(sk, greq.gr_interface,
&psin6->sin6_addr);
retv = ipv6_mcast_join_leave(sk, optname, optval,
optlen);
break;
}
case MCAST_JOIN_SOURCE_GROUP:
case MCAST_LEAVE_SOURCE_GROUP:
case MCAST_BLOCK_SOURCE:
case MCAST_UNBLOCK_SOURCE:
{
struct group_source_req greqs;
if (optlen < sizeof(struct group_source_req))
goto e_inval;
if (copy_from_user(&greqs, optval, sizeof(greqs))) {
retv = -EFAULT;
break;
}
retv = do_ipv6_mcast_group_source(sk, optname, &greqs);
retv = do_ipv6_mcast_group_source(sk, optname, optval, optlen);
break;
}
case MCAST_MSFILTER:
{
struct group_filter *gsf;
if (optlen < GROUP_FILTER_SIZE(0))
goto e_inval;
if (optlen > sysctl_optmem_max) {
retv = -ENOBUFS;
break;
}
gsf = memdup_user(optval, optlen);
if (IS_ERR(gsf)) {
retv = PTR_ERR(gsf);
break;
}
/* numsrc >= (4G-140)/128 overflow in 32 bits */
if (gsf->gf_numsrc >= 0x1ffffffU ||
gsf->gf_numsrc > sysctl_mld_max_msf) {
kfree(gsf);
retv = -ENOBUFS;
break;
}
if (GROUP_FILTER_SIZE(gsf->gf_numsrc) > optlen) {
kfree(gsf);
retv = -EINVAL;
break;
}
retv = ip6_mc_msfilter(sk, gsf, gsf->gf_slist);
kfree(gsf);
if (in_compat_syscall())
retv = compat_ipv6_set_mcast_msfilter(sk, optval,
optlen);
else
retv = ipv6_set_mcast_msfilter(sk, optval, optlen);
break;
}
case IPV6_ROUTER_ALERT:
if (optlen < sizeof(int))
goto e_inval;
@ -908,140 +1001,6 @@ int ipv6_setsockopt(struct sock *sk, int level, int optname,
}
EXPORT_SYMBOL(ipv6_setsockopt);
#ifdef CONFIG_COMPAT
int compat_ipv6_setsockopt(struct sock *sk, int level, int optname,
char __user *optval, unsigned int optlen)
{
int err;
if (level == SOL_IP && sk->sk_type != SOCK_RAW) {
if (udp_prot.compat_setsockopt != NULL)
return udp_prot.compat_setsockopt(sk, level, optname,
optval, optlen);
return udp_prot.setsockopt(sk, level, optname, optval, optlen);
}
if (level != SOL_IPV6)
return -ENOPROTOOPT;
switch (optname) {
case MCAST_JOIN_GROUP:
case MCAST_LEAVE_GROUP:
{
struct compat_group_req __user *gr32 = (void __user *)optval;
struct group_req greq;
struct sockaddr_in6 *psin6 = (struct sockaddr_in6 *)&greq.gr_group;
if (optlen < sizeof(struct compat_group_req))
return -EINVAL;
if (get_user(greq.gr_interface, &gr32->gr_interface) ||
copy_from_user(&greq.gr_group, &gr32->gr_group,
sizeof(greq.gr_group)))
return -EFAULT;
if (greq.gr_group.ss_family != AF_INET6)
return -EADDRNOTAVAIL;
rtnl_lock();
lock_sock(sk);
if (optname == MCAST_JOIN_GROUP)
err = ipv6_sock_mc_join(sk, greq.gr_interface,
&psin6->sin6_addr);
else
err = ipv6_sock_mc_drop(sk, greq.gr_interface,
&psin6->sin6_addr);
release_sock(sk);
rtnl_unlock();
return err;
}
case MCAST_JOIN_SOURCE_GROUP:
case MCAST_LEAVE_SOURCE_GROUP:
case MCAST_BLOCK_SOURCE:
case MCAST_UNBLOCK_SOURCE:
{
struct compat_group_source_req __user *gsr32 = (void __user *)optval;
struct group_source_req greqs;
if (optlen < sizeof(struct compat_group_source_req))
return -EINVAL;
if (get_user(greqs.gsr_interface, &gsr32->gsr_interface) ||
copy_from_user(&greqs.gsr_group, &gsr32->gsr_group,
sizeof(greqs.gsr_group)) ||
copy_from_user(&greqs.gsr_source, &gsr32->gsr_source,
sizeof(greqs.gsr_source)))
return -EFAULT;
rtnl_lock();
lock_sock(sk);
err = do_ipv6_mcast_group_source(sk, optname, &greqs);
release_sock(sk);
rtnl_unlock();
return err;
}
case MCAST_MSFILTER:
{
const int size0 = offsetof(struct compat_group_filter, gf_slist);
struct compat_group_filter *gf32;
void *p;
int n;
if (optlen < size0)
return -EINVAL;
if (optlen > sysctl_optmem_max - 4)
return -ENOBUFS;
p = kmalloc(optlen + 4, GFP_KERNEL);
if (!p)
return -ENOMEM;
gf32 = p + 4; /* we want ->gf_group and ->gf_slist aligned */
if (copy_from_user(gf32, optval, optlen)) {
err = -EFAULT;
goto mc_msf_out;
}
n = gf32->gf_numsrc;
/* numsrc >= (4G-140)/128 overflow in 32 bits */
if (n >= 0x1ffffffU ||
n > sysctl_mld_max_msf) {
err = -ENOBUFS;
goto mc_msf_out;
}
if (offsetof(struct compat_group_filter, gf_slist[n]) > optlen) {
err = -EINVAL;
goto mc_msf_out;
}
rtnl_lock();
lock_sock(sk);
err = ip6_mc_msfilter(sk, &(struct group_filter){
.gf_interface = gf32->gf_interface,
.gf_group = gf32->gf_group,
.gf_fmode = gf32->gf_fmode,
.gf_numsrc = gf32->gf_numsrc}, gf32->gf_slist);
release_sock(sk);
rtnl_unlock();
mc_msf_out:
kfree(p);
return err;
}
}
err = do_ipv6_setsockopt(sk, level, optname, optval, optlen);
#ifdef CONFIG_NETFILTER
/* we need to exclude all possible ENOPROTOOPTs except default case */
if (err == -ENOPROTOOPT && optname != IPV6_IPSEC_POLICY &&
optname != IPV6_XFRM_POLICY)
err = compat_nf_setsockopt(sk, PF_INET6, optname, optval,
optlen);
#endif
return err;
}
EXPORT_SYMBOL(compat_ipv6_setsockopt);
#endif
static int ipv6_getsockopt_sticky(struct sock *sk, struct ipv6_txoptions *opt,
int optname, char __user *optval, int len)
{
@ -1076,6 +1035,75 @@ static int ipv6_getsockopt_sticky(struct sock *sk, struct ipv6_txoptions *opt,
return len;
}
static int ipv6_get_msfilter(struct sock *sk, void __user *optval,
int __user *optlen, int len)
{
const int size0 = offsetof(struct group_filter, gf_slist);
struct group_filter __user *p = optval;
struct group_filter gsf;
int num;
int err;
if (len < size0)
return -EINVAL;
if (copy_from_user(&gsf, p, size0))
return -EFAULT;
if (gsf.gf_group.ss_family != AF_INET6)
return -EADDRNOTAVAIL;
num = gsf.gf_numsrc;
lock_sock(sk);
err = ip6_mc_msfget(sk, &gsf, p->gf_slist);
if (!err) {
if (num > gsf.gf_numsrc)
num = gsf.gf_numsrc;
if (put_user(GROUP_FILTER_SIZE(num), optlen) ||
copy_to_user(p, &gsf, size0))
err = -EFAULT;
}
release_sock(sk);
return err;
}
static int compat_ipv6_get_msfilter(struct sock *sk, void __user *optval,
int __user *optlen)
{
const int size0 = offsetof(struct compat_group_filter, gf_slist);
struct compat_group_filter __user *p = optval;
struct compat_group_filter gf32;
struct group_filter gf;
int len, err;
int num;
if (get_user(len, optlen))
return -EFAULT;
if (len < size0)
return -EINVAL;
if (copy_from_user(&gf32, p, size0))
return -EFAULT;
gf.gf_interface = gf32.gf_interface;
gf.gf_fmode = gf32.gf_fmode;
num = gf.gf_numsrc = gf32.gf_numsrc;
gf.gf_group = gf32.gf_group;
if (gf.gf_group.ss_family != AF_INET6)
return -EADDRNOTAVAIL;
lock_sock(sk);
err = ip6_mc_msfget(sk, &gf, p->gf_slist);
release_sock(sk);
if (err)
return err;
if (num > gf.gf_numsrc)
num = gf.gf_numsrc;
len = GROUP_FILTER_SIZE(num) - (sizeof(gf)-sizeof(gf32));
if (put_user(len, optlen) ||
put_user(gf.gf_fmode, &p->gf_fmode) ||
put_user(gf.gf_numsrc, &p->gf_numsrc))
return -EFAULT;
return 0;
}
static int do_ipv6_getsockopt(struct sock *sk, int level, int optname,
char __user *optval, int __user *optlen, unsigned int flags)
{
@ -1099,33 +1127,9 @@ static int do_ipv6_getsockopt(struct sock *sk, int level, int optname,
val = sk->sk_family;
break;
case MCAST_MSFILTER:
{
struct group_filter __user *p = (void __user *)optval;
struct group_filter gsf;
const int size0 = offsetof(struct group_filter, gf_slist);
int num;
int err;
if (len < size0)
return -EINVAL;
if (copy_from_user(&gsf, p, size0))
return -EFAULT;
if (gsf.gf_group.ss_family != AF_INET6)
return -EADDRNOTAVAIL;
num = gsf.gf_numsrc;
lock_sock(sk);
err = ip6_mc_msfget(sk, &gsf, p->gf_slist);
if (!err) {
if (num > gsf.gf_numsrc)
num = gsf.gf_numsrc;
if (put_user(GROUP_FILTER_SIZE(num), optlen) ||
copy_to_user(p, &gsf, size0))
err = -EFAULT;
}
release_sock(sk);
return err;
}
if (in_compat_syscall())
return compat_ipv6_get_msfilter(sk, optval, optlen);
return ipv6_get_msfilter(sk, optval, optlen, len);
case IPV6_2292PKTOPTIONS:
{
struct msghdr msg;
@ -1473,78 +1477,3 @@ int ipv6_getsockopt(struct sock *sk, int level, int optname,
return err;
}
EXPORT_SYMBOL(ipv6_getsockopt);
#ifdef CONFIG_COMPAT
int compat_ipv6_getsockopt(struct sock *sk, int level, int optname,
char __user *optval, int __user *optlen)
{
int err;
if (level == SOL_IP && sk->sk_type != SOCK_RAW) {
if (udp_prot.compat_getsockopt != NULL)
return udp_prot.compat_getsockopt(sk, level, optname,
optval, optlen);
return udp_prot.getsockopt(sk, level, optname, optval, optlen);
}
if (level != SOL_IPV6)
return -ENOPROTOOPT;
if (optname == MCAST_MSFILTER) {
const int size0 = offsetof(struct compat_group_filter, gf_slist);
struct compat_group_filter __user *p = (void __user *)optval;
struct compat_group_filter gf32;
struct group_filter gf;
int ulen, err;
int num;
if (get_user(ulen, optlen))
return -EFAULT;
if (ulen < size0)
return -EINVAL;
if (copy_from_user(&gf32, p, size0))
return -EFAULT;
gf.gf_interface = gf32.gf_interface;
gf.gf_fmode = gf32.gf_fmode;
num = gf.gf_numsrc = gf32.gf_numsrc;
gf.gf_group = gf32.gf_group;
if (gf.gf_group.ss_family != AF_INET6)
return -EADDRNOTAVAIL;
lock_sock(sk);
err = ip6_mc_msfget(sk, &gf, p->gf_slist);
release_sock(sk);
if (err)
return err;
if (num > gf.gf_numsrc)
num = gf.gf_numsrc;
ulen = GROUP_FILTER_SIZE(num) - (sizeof(gf)-sizeof(gf32));
if (put_user(ulen, optlen) ||
put_user(gf.gf_fmode, &p->gf_fmode) ||
put_user(gf.gf_numsrc, &p->gf_numsrc))
return -EFAULT;
return 0;
}
err = do_ipv6_getsockopt(sk, level, optname, optval, optlen,
MSG_CMSG_COMPAT);
#ifdef CONFIG_NETFILTER
/* we need to exclude all possible ENOPROTOOPTs except default case */
if (err == -ENOPROTOOPT && optname != IPV6_2292PKTOPTIONS) {
int len;
if (get_user(len, optlen))
return -EFAULT;
err = compat_nf_getsockopt(sk, PF_INET6, optname, optval, &len);
if (err >= 0)
err = put_user(len, optlen);
}
#endif
return err;
}
EXPORT_SYMBOL(compat_ipv6_getsockopt);
#endif

86
net/ipv6/netfilter/ip6_tables.c
View File

@ -960,8 +960,7 @@ static int compat_table_info(const struct xt_table_info *info,
}
#endif
static int get_info(struct net *net, void __user *user,
const int *len, int compat)
static int get_info(struct net *net, void __user *user, const int *len)
{
char name[XT_TABLE_MAXNAMELEN];
struct xt_table *t;
@ -975,7 +974,7 @@ static int get_info(struct net *net, void __user *user,
name[XT_TABLE_MAXNAMELEN-1] = '\0';
#ifdef CONFIG_COMPAT
if (compat)
if (in_compat_syscall())
xt_compat_lock(AF_INET6);
#endif
t = xt_request_find_table_lock(net, AF_INET6, name);
@ -985,7 +984,7 @@ static int get_info(struct net *net, void __user *user,
#ifdef CONFIG_COMPAT
struct xt_table_info tmp;
if (compat) {
if (in_compat_syscall()) {
ret = compat_table_info(private, &tmp);
xt_compat_flush_offsets(AF_INET6);
private = &tmp;
@ -1011,7 +1010,7 @@ static int get_info(struct net *net, void __user *user,
} else
ret = PTR_ERR(t);
#ifdef CONFIG_COMPAT
if (compat)
if (in_compat_syscall())
xt_compat_unlock(AF_INET6);
#endif
return ret;
@ -1169,8 +1168,7 @@ do_replace(struct net *net, const void __user *user, unsigned int len)
}
static int
do_add_counters(struct net *net, const void __user *user, unsigned int len,
int compat)
do_add_counters(struct net *net, const void __user *user, unsigned int len)
{
unsigned int i;
struct xt_counters_info tmp;
@ -1181,7 +1179,7 @@ do_add_counters(struct net *net, const void __user *user, unsigned int len,
struct ip6t_entry *iter;
unsigned int addend;
paddc = xt_copy_counters_from_user(user, len, &tmp, compat);
paddc = xt_copy_counters_from_user(user, len, &tmp);
if (IS_ERR(paddc))
return PTR_ERR(paddc);
t = xt_find_table_lock(net, AF_INET6, tmp.name);
@ -1543,31 +1541,6 @@ compat_do_replace(struct net *net, void __user *user, unsigned int len)
return ret;
}
static int
compat_do_ip6t_set_ctl(struct sock *sk, int cmd, void __user *user,
unsigned int len)
{
int ret;
if (!ns_capable(sock_net(sk)->user_ns, CAP_NET_ADMIN))
return -EPERM;
switch (cmd) {
case IP6T_SO_SET_REPLACE:
ret = compat_do_replace(sock_net(sk), user, len);
break;
case IP6T_SO_SET_ADD_COUNTERS:
ret = do_add_counters(sock_net(sk), user, len, 1);
break;
default:
ret = -EINVAL;
}
return ret;
}
struct compat_ip6t_get_entries {
char name[XT_TABLE_MAXNAMELEN];
compat_uint_t size;
@ -1643,29 +1616,6 @@ compat_get_entries(struct net *net, struct compat_ip6t_get_entries __user *uptr,
xt_compat_unlock(AF_INET6);
return ret;
}
static int do_ip6t_get_ctl(struct sock *, int, void __user *, int *);
static int
compat_do_ip6t_get_ctl(struct sock *sk, int cmd, void __user *user, int *len)
{
int ret;
if (!ns_capable(sock_net(sk)->user_ns, CAP_NET_ADMIN))
return -EPERM;
switch (cmd) {
case IP6T_SO_GET_INFO:
ret = get_info(sock_net(sk), user, len, 1);
break;
case IP6T_SO_GET_ENTRIES:
ret = compat_get_entries(sock_net(sk), user, len);
break;
default:
ret = do_ip6t_get_ctl(sk, cmd, user, len);
}
return ret;
}
#endif
static int
@ -1678,11 +1628,16 @@ do_ip6t_set_ctl(struct sock *sk, int cmd, void __user *user, unsigned int len)
switch (cmd) {
case IP6T_SO_SET_REPLACE:
ret = do_replace(sock_net(sk), user, len);
#ifdef CONFIG_COMPAT
if (in_compat_syscall())
ret = compat_do_replace(sock_net(sk), user, len);
else
#endif
ret = do_replace(sock_net(sk), user, len);
break;
case IP6T_SO_SET_ADD_COUNTERS:
ret = do_add_counters(sock_net(sk), user, len, 0);
ret = do_add_counters(sock_net(sk), user, len);
break;
default:
@ -1702,11 +1657,16 @@ do_ip6t_get_ctl(struct sock *sk, int cmd, void __user *user, int *len)
switch (cmd) {
case IP6T_SO_GET_INFO:
ret = get_info(sock_net(sk), user, len, 0);
ret = get_info(sock_net(sk), user, len);
break;
case IP6T_SO_GET_ENTRIES:
ret = get_entries(sock_net(sk), user, len);
#ifdef CONFIG_COMPAT
if (in_compat_syscall())
ret = compat_get_entries(sock_net(sk), user, len);
else
#endif
ret = get_entries(sock_net(sk), user, len);
break;
case IP6T_SO_GET_REVISION_MATCH:
@ -1897,15 +1857,9 @@ static struct nf_sockopt_ops ip6t_sockopts = {
.set_optmin = IP6T_BASE_CTL,
.set_optmax = IP6T_SO_SET_MAX+1,
.set = do_ip6t_set_ctl,
#ifdef CONFIG_COMPAT
.compat_set = compat_do_ip6t_set_ctl,
#endif
.get_optmin = IP6T_BASE_CTL,
.get_optmax = IP6T_SO_GET_MAX+1,
.get = do_ip6t_get_ctl,
#ifdef CONFIG_COMPAT
.compat_get = compat_do_ip6t_get_ctl,
#endif
.owner = THIS_MODULE,
};

52
net/ipv6/raw.c
View File

@ -1084,30 +1084,6 @@ static int rawv6_setsockopt(struct sock *sk, int level, int optname,
return do_rawv6_setsockopt(sk, level, optname, optval, optlen);
}
#ifdef CONFIG_COMPAT
static int compat_rawv6_setsockopt(struct sock *sk, int level, int optname,
char __user *optval, unsigned int optlen)
{
switch (level) {
case SOL_RAW:
break;
case SOL_ICMPV6:
if (inet_sk(sk)->inet_num != IPPROTO_ICMPV6)
return -EOPNOTSUPP;
return rawv6_seticmpfilter(sk, level, optname, optval, optlen);
case SOL_IPV6:
if (optname == IPV6_CHECKSUM ||
optname == IPV6_HDRINCL)
break;
fallthrough;
default:
return compat_ipv6_setsockopt(sk, level, optname,
optval, optlen);
}
return do_rawv6_setsockopt(sk, level, optname, optval, optlen);
}
#endif
static int do_rawv6_getsockopt(struct sock *sk, int level, int optname,
char __user *optval, int __user *optlen)
{
@ -1169,30 +1145,6 @@ static int rawv6_getsockopt(struct sock *sk, int level, int optname,
return do_rawv6_getsockopt(sk, level, optname, optval, optlen);
}
#ifdef CONFIG_COMPAT
static int compat_rawv6_getsockopt(struct sock *sk, int level, int optname,
char __user *optval, int __user *optlen)
{
switch (level) {
case SOL_RAW:
break;
case SOL_ICMPV6:
if (inet_sk(sk)->inet_num != IPPROTO_ICMPV6)
return -EOPNOTSUPP;
return rawv6_geticmpfilter(sk, level, optname, optval, optlen);
case SOL_IPV6:
if (optname == IPV6_CHECKSUM ||
optname == IPV6_HDRINCL)
break;
fallthrough;
default:
return compat_ipv6_getsockopt(sk, level, optname,
optval, optlen);
}
return do_rawv6_getsockopt(sk, level, optname, optval, optlen);
}
#endif
static int rawv6_ioctl(struct sock *sk, int cmd, unsigned long arg)
{
switch (cmd) {
@ -1297,8 +1249,6 @@ struct proto rawv6_prot = {
.usersize = sizeof_field(struct raw6_sock, filter),
.h.raw_hash = &raw_v6_hashinfo,
#ifdef CONFIG_COMPAT
.compat_setsockopt = compat_rawv6_setsockopt,
.compat_getsockopt = compat_rawv6_getsockopt,
.compat_ioctl = compat_rawv6_ioctl,
#endif
.diag_destroy = raw_abort,
@ -1378,8 +1328,6 @@ const struct proto_ops inet6_sockraw_ops = {
.sendpage = sock_no_sendpage,
#ifdef CONFIG_COMPAT
.compat_ioctl = inet6_compat_ioctl,
.compat_setsockopt = compat_sock_common_setsockopt,
.compat_getsockopt = compat_sock_common_getsockopt,
#endif
};

12
net/ipv6/tcp_ipv6.c
View File

@ -1831,10 +1831,6 @@ const struct inet_connection_sock_af_ops ipv6_specific = {
.getsockopt = ipv6_getsockopt,
.addr2sockaddr = inet6_csk_addr2sockaddr,
.sockaddr_len = sizeof(struct sockaddr_in6),
#ifdef CONFIG_COMPAT
.compat_setsockopt = compat_ipv6_setsockopt,
.compat_getsockopt = compat_ipv6_getsockopt,
#endif
.mtu_reduced = tcp_v6_mtu_reduced,
};
@ -1861,10 +1857,6 @@ static const struct inet_connection_sock_af_ops ipv6_mapped = {
.getsockopt = ipv6_getsockopt,
.addr2sockaddr = inet6_csk_addr2sockaddr,
.sockaddr_len = sizeof(struct sockaddr_in6),
#ifdef CONFIG_COMPAT
.compat_setsockopt = compat_ipv6_setsockopt,
.compat_getsockopt = compat_ipv6_getsockopt,
#endif
.mtu_reduced = tcp_v4_mtu_reduced,
};
@ -2122,10 +2114,6 @@ struct proto tcpv6_prot = {
.rsk_prot = &tcp6_request_sock_ops,
.h.hashinfo = &tcp_hashinfo,
.no_autobind = true,
#ifdef CONFIG_COMPAT
.compat_setsockopt = compat_tcp_setsockopt,
.compat_getsockopt = compat_tcp_getsockopt,
#endif
.diag_destroy = tcp_abort,
};
EXPORT_SYMBOL_GPL(tcpv6_prot);

25
net/ipv6/udp.c
View File

@ -1570,17 +1570,6 @@ int udpv6_setsockopt(struct sock *sk, int level, int optname,
return ipv6_setsockopt(sk, level, optname, optval, optlen);
}
#ifdef CONFIG_COMPAT
int compat_udpv6_setsockopt(struct sock *sk, int level, int optname,
char __user *optval, unsigned int optlen)
{
if (level == SOL_UDP || level == SOL_UDPLITE)
return udp_lib_setsockopt(sk, level, optname, optval, optlen,
udp_v6_push_pending_frames);
return compat_ipv6_setsockopt(sk, level, optname, optval, optlen);
}
#endif
int udpv6_getsockopt(struct sock *sk, int level, int optname,
char __user *optval, int __user *optlen)
{
@ -1589,16 +1578,6 @@ int udpv6_getsockopt(struct sock *sk, int level, int optname,
return ipv6_getsockopt(sk, level, optname, optval, optlen);
}
#ifdef CONFIG_COMPAT
int compat_udpv6_getsockopt(struct sock *sk, int level, int optname,
char __user *optval, int __user *optlen)
{
if (level == SOL_UDP || level == SOL_UDPLITE)
return udp_lib_getsockopt(sk, level, optname, optval, optlen);
return compat_ipv6_getsockopt(sk, level, optname, optval, optlen);
}
#endif
/* thinking of making this const? Don't.
* early_demux can change based on sysctl.
*/
@ -1681,10 +1660,6 @@ struct proto udpv6_prot = {
.sysctl_rmem_offset = offsetof(struct net, ipv4.sysctl_udp_rmem_min),
.obj_size = sizeof(struct udp6_sock),
.h.udp_table = &udp_table,
#ifdef CONFIG_COMPAT
.compat_setsockopt = compat_udpv6_setsockopt,
.compat_getsockopt = compat_udpv6_getsockopt,
#endif
.diag_destroy = udp_abort,
};

6
net/ipv6/udp_impl.h
View File

@ -19,12 +19,6 @@ int udpv6_getsockopt(struct sock *sk, int level, int optname,
char __user *optval, int __user *optlen);
int udpv6_setsockopt(struct sock *sk, int level, int optname,
char __user *optval, unsigned int optlen);
#ifdef CONFIG_COMPAT
int compat_udpv6_setsockopt(struct sock *sk, int level, int optname,
char __user *optval, unsigned int optlen);
int compat_udpv6_getsockopt(struct sock *sk, int level, int optname,
char __user *optval, int __user *optlen);
#endif
int udpv6_sendmsg(struct sock *sk, struct msghdr *msg, size_t len);
int udpv6_recvmsg(struct sock *sk, struct msghdr *msg, size_t len, int noblock,
int flags, int *addr_len);

4
net/ipv6/udplite.c
View File

@ -52,10 +52,6 @@ struct proto udplitev6_prot = {
.sysctl_mem = sysctl_udp_mem,
.obj_size = sizeof(struct udp6_sock),
.h.udp_table = &udplite_table,
#ifdef CONFIG_COMPAT
.compat_setsockopt = compat_udpv6_setsockopt,
.compat_getsockopt = compat_udpv6_getsockopt,
#endif
};
static struct inet_protosw udplite6_protosw = {

2
net/key/af_key.c
View File

@ -3734,8 +3734,6 @@ static const struct proto_ops pfkey_ops = {
.ioctl = sock_no_ioctl,
.listen = sock_no_listen,
.shutdown = sock_no_shutdown,
.setsockopt = sock_no_setsockopt,
.getsockopt = sock_no_getsockopt,
.mmap = sock_no_mmap,
.sendpage = sock_no_sendpage,

8
net/l2tp/l2tp_ip.c
View File

@ -612,10 +612,6 @@ static struct proto l2tp_ip_prot = {
.hash = l2tp_ip_hash,
.unhash = l2tp_ip_unhash,
.obj_size = sizeof(struct l2tp_ip_sock),
#ifdef CONFIG_COMPAT
.compat_setsockopt = compat_ip_setsockopt,
.compat_getsockopt = compat_ip_getsockopt,
#endif
};
static const struct proto_ops l2tp_ip_ops = {
@ -638,10 +634,6 @@ static const struct proto_ops l2tp_ip_ops = {
.recvmsg = sock_common_recvmsg,
.mmap = sock_no_mmap,
.sendpage = sock_no_sendpage,
#ifdef CONFIG_COMPAT
.compat_setsockopt = compat_sock_common_setsockopt,
.compat_getsockopt = compat_sock_common_getsockopt,
#endif
};
static struct inet_protosw l2tp_ip_protosw = {

6
net/l2tp/l2tp_ip6.c
View File

@ -745,10 +745,6 @@ static struct proto l2tp_ip6_prot = {
.hash = l2tp_ip6_hash,
.unhash = l2tp_ip6_unhash,
.obj_size = sizeof(struct l2tp_ip6_sock),
#ifdef CONFIG_COMPAT
.compat_setsockopt = compat_ipv6_setsockopt,
.compat_getsockopt = compat_ipv6_getsockopt,
#endif
};
static const struct proto_ops l2tp_ip6_ops = {
@ -773,8 +769,6 @@ static const struct proto_ops l2tp_ip6_ops = {
.sendpage = sock_no_sendpage,
#ifdef CONFIG_COMPAT
.compat_ioctl = inet6_compat_ioctl,
.compat_setsockopt = compat_sock_common_setsockopt,
.compat_getsockopt = compat_sock_common_getsockopt,
#endif
};

6
net/mptcp/protocol.c
View File

@ -2166,10 +2166,6 @@ static const struct proto_ops mptcp_stream_ops = {
.recvmsg = inet_recvmsg,
.mmap = sock_no_mmap,
.sendpage = inet_sendpage,
#ifdef CONFIG_COMPAT
.compat_setsockopt = compat_sock_common_setsockopt,
.compat_getsockopt = compat_sock_common_getsockopt,
#endif
};
static struct inet_protosw mptcp_protosw = {
@ -2222,8 +2218,6 @@ static const struct proto_ops mptcp_v6_stream_ops = {
.sendpage = inet_sendpage,
#ifdef CONFIG_COMPAT
.compat_ioctl = inet6_compat_ioctl,
.compat_setsockopt = compat_sock_common_setsockopt,
.compat_getsockopt = compat_sock_common_getsockopt,
#endif
};

60
net/netfilter/nf_sockopt.c
View File

@ -89,78 +89,32 @@ out:
return ops;
}
/* Call get/setsockopt() */
static int nf_sockopt(struct sock *sk, u_int8_t pf, int val,
char __user *opt, int *len, int get)
int nf_setsockopt(struct sock *sk, u_int8_t pf, int val, char __user *opt,
unsigned int len)
{
struct nf_sockopt_ops *ops;
int ret;
ops = nf_sockopt_find(sk, pf, val, get);
ops = nf_sockopt_find(sk, pf, val, 0);
if (IS_ERR(ops))
return PTR_ERR(ops);
if (get)
ret = ops->get(sk, val, opt, len);
else
ret = ops->set(sk, val, opt, *len);
ret = ops->set(sk, val, opt, len);
module_put(ops->owner);
return ret;
}
int nf_setsockopt(struct sock *sk, u_int8_t pf, int val, char __user *opt,
unsigned int len)
{
return nf_sockopt(sk, pf, val, opt, &len, 0);
}
EXPORT_SYMBOL(nf_setsockopt);
int nf_getsockopt(struct sock *sk, u_int8_t pf, int val, char __user *opt,
int *len)
{
return nf_sockopt(sk, pf, val, opt, len, 1);
}
EXPORT_SYMBOL(nf_getsockopt);
#ifdef CONFIG_COMPAT
static int compat_nf_sockopt(struct sock *sk, u_int8_t pf, int val,
char __user *opt, int *len, int get)
{
struct nf_sockopt_ops *ops;
int ret;
ops = nf_sockopt_find(sk, pf, val, get);
ops = nf_sockopt_find(sk, pf, val, 1);
if (IS_ERR(ops))
return PTR_ERR(ops);
if (get) {
if (ops->compat_get)
ret = ops->compat_get(sk, val, opt, len);
else
ret = ops->get(sk, val, opt, len);
} else {
if (ops->compat_set)
ret = ops->compat_set(sk, val, opt, *len);
else
ret = ops->set(sk, val, opt, *len);
}
ret = ops->get(sk, val, opt, len);
module_put(ops->owner);
return ret;
}
int compat_nf_setsockopt(struct sock *sk, u_int8_t pf,
int val, char __user *opt, unsigned int len)
{
return compat_nf_sockopt(sk, pf, val, opt, &len, 0);
}
EXPORT_SYMBOL(compat_nf_setsockopt);
int compat_nf_getsockopt(struct sock *sk, u_int8_t pf,
int val, char __user *opt, int *len)
{
return compat_nf_sockopt(sk, pf, val, opt, len, 1);
}
EXPORT_SYMBOL(compat_nf_getsockopt);
#endif
EXPORT_SYMBOL(nf_getsockopt);

9
net/netfilter/x_tables.c
View File

@ -1033,15 +1033,14 @@ EXPORT_SYMBOL_GPL(xt_check_target);
* @user: src pointer to userspace memory
* @len: alleged size of userspace memory
* @info: where to store the xt_counters_info metadata
* @compat: true if we setsockopt call is done by 32bit task on 64bit kernel
*
* Copies counter meta data from @user and stores it in @info.
*
* vmallocs memory to hold the counters, then copies the counter data
* from @user to the new memory and returns a pointer to it.
*
* If @compat is true, @info gets converted automatically to the 64bit
* representation.
* If called from a compat syscall, @info gets converted automatically to the
* 64bit representation.
*
* The metadata associated with the counters is stored in @info.
*
@ -1049,13 +1048,13 @@ EXPORT_SYMBOL_GPL(xt_check_target);
* If IS_ERR is false, caller has to vfree the pointer.
*/
void *xt_copy_counters_from_user(const void __user *user, unsigned int len,
struct xt_counters_info *info, bool compat)
struct xt_counters_info *info)
{
void *mem;
u64 size;
#ifdef CONFIG_COMPAT
if (compat) {
if (in_compat_syscall()) {
/* structures only differ in size due to alignment */
struct compat_xt_counters_info compat_tmp;

2
net/nfc/llcp_sock.c
View File

@ -921,8 +921,6 @@ static const struct proto_ops llcp_rawsock_ops = {
.ioctl = sock_no_ioctl,
.listen = sock_no_listen,
.shutdown = sock_no_shutdown,
.setsockopt = sock_no_setsockopt,
.getsockopt = sock_no_getsockopt,
.sendmsg = sock_no_sendmsg,
.recvmsg = llcp_sock_recvmsg,
.mmap = sock_no_mmap,

4
net/nfc/rawsock.c
View File

@ -276,8 +276,6 @@ static const struct proto_ops rawsock_ops = {
.ioctl = sock_no_ioctl,
.listen = sock_no_listen,
.shutdown = sock_no_shutdown,
.setsockopt = sock_no_setsockopt,
.getsockopt = sock_no_getsockopt,
.sendmsg = rawsock_sendmsg,
.recvmsg = rawsock_recvmsg,
.mmap = sock_no_mmap,
@ -296,8 +294,6 @@ static const struct proto_ops rawsock_raw_ops = {
.ioctl = sock_no_ioctl,
.listen = sock_no_listen,
.shutdown = sock_no_shutdown,
.setsockopt = sock_no_setsockopt,
.getsockopt = sock_no_getsockopt,
.sendmsg = sock_no_sendmsg,
.recvmsg = rawsock_recvmsg,
.mmap = sock_no_mmap,

35
net/packet/af_packet.c
View File

@ -1545,10 +1545,10 @@ static int fanout_set_data_cbpf(struct packet_sock *po, char __user *data,
if (sock_flag(&po->sk, SOCK_FILTER_LOCKED))
return -EPERM;
if (len != sizeof(fprog))
return -EINVAL;
if (copy_from_user(&fprog, data, len))
return -EFAULT;
ret = copy_bpf_fprog_from_user(&fprog, data, len);
if (ret)
return ret;
ret = bpf_prog_create_from_user(&new, &fprog, NULL, false);
if (ret)
@ -4040,28 +4040,6 @@ static int packet_getsockopt(struct socket *sock, int level, int optname,
return 0;
}
#ifdef CONFIG_COMPAT
static int compat_packet_setsockopt(struct socket *sock, int level, int optname,
char __user *optval, unsigned int optlen)
{
struct packet_sock *po = pkt_sk(sock->sk);
if (level != SOL_PACKET)
return -ENOPROTOOPT;
if (optname == PACKET_FANOUT_DATA &&
po->fanout && po->fanout->type == PACKET_FANOUT_CBPF) {
optval = (char __user *)get_compat_bpf_fprog(optval);
if (!optval)
return -EFAULT;
optlen = sizeof(struct sock_fprog);
}
return packet_setsockopt(sock, level, optname, optval, optlen);
}
#endif
static int packet_notifier(struct notifier_block *this,
unsigned long msg, void *ptr)
{
@ -4525,8 +4503,6 @@ static const struct proto_ops packet_ops_spkt = {
.gettstamp = sock_gettstamp,
.listen = sock_no_listen,
.shutdown = sock_no_shutdown,
.setsockopt = sock_no_setsockopt,
.getsockopt = sock_no_getsockopt,
.sendmsg = packet_sendmsg_spkt,
.recvmsg = packet_recvmsg,
.mmap = sock_no_mmap,
@ -4549,9 +4525,6 @@ static const struct proto_ops packet_ops = {
.shutdown = sock_no_shutdown,
.setsockopt = packet_setsockopt,
.getsockopt = packet_getsockopt,
#ifdef CONFIG_COMPAT
.compat_setsockopt = compat_packet_setsockopt,
#endif
.sendmsg = packet_sendmsg,
.recvmsg = packet_recvmsg,
.mmap = packet_mmap,

10
net/phonet/socket.c
View File

@ -439,12 +439,6 @@ const struct proto_ops phonet_dgram_ops = {
.ioctl = pn_socket_ioctl,
.listen = sock_no_listen,
.shutdown = sock_no_shutdown,
.setsockopt = sock_no_setsockopt,
.getsockopt = sock_no_getsockopt,
#ifdef CONFIG_COMPAT
.compat_setsockopt = sock_no_setsockopt,
.compat_getsockopt = sock_no_getsockopt,
#endif
.sendmsg = pn_socket_sendmsg,
.recvmsg = sock_common_recvmsg,
.mmap = sock_no_mmap,
@ -466,10 +460,6 @@ const struct proto_ops phonet_stream_ops = {
.shutdown = sock_no_shutdown,
.setsockopt = sock_common_setsockopt,
.getsockopt = sock_common_getsockopt,
#ifdef CONFIG_COMPAT
.compat_setsockopt = compat_sock_common_setsockopt,
.compat_getsockopt = compat_sock_common_getsockopt,
#endif
.sendmsg = pn_socket_sendmsg,
.recvmsg = sock_common_recvmsg,
.mmap = sock_no_mmap,

2
net/qrtr/qrtr.c
View File

@ -1208,8 +1208,6 @@ static const struct proto_ops qrtr_proto_ops = {
.gettstamp = sock_gettstamp,
.poll = datagram_poll,
.shutdown = sock_no_shutdown,
.setsockopt = sock_no_setsockopt,
.getsockopt = sock_no_getsockopt,
.release = qrtr_release,
.mmap = sock_no_mmap,
.sendpage = sock_no_sendpage,

6
net/sctp/ipv6.c
View File

@ -1033,8 +1033,6 @@ static const struct proto_ops inet6_seqpacket_ops = {
.mmap = sock_no_mmap,
#ifdef CONFIG_COMPAT
.compat_ioctl = inet6_compat_ioctl,
.compat_setsockopt = compat_sock_common_setsockopt,
.compat_getsockopt = compat_sock_common_getsockopt,
#endif
};
@ -1089,10 +1087,6 @@ static struct sctp_af sctp_af_inet6 = {
.net_header_len = sizeof(struct ipv6hdr),
.sockaddr_len = sizeof(struct sockaddr_in6),
.ip_options_len = sctp_v6_ip_options_len,
#ifdef CONFIG_COMPAT
.compat_setsockopt = compat_ipv6_setsockopt,
.compat_getsockopt = compat_ipv6_getsockopt,
#endif
};
static struct sctp_pf sctp_pf_inet6 = {

8
net/sctp/protocol.c
View File

@ -1036,10 +1036,6 @@ static const struct proto_ops inet_seqpacket_ops = {
.recvmsg = inet_recvmsg,
.mmap = sock_no_mmap,
.sendpage = sock_no_sendpage,
#ifdef CONFIG_COMPAT
.compat_setsockopt = compat_sock_common_setsockopt,
.compat_getsockopt = compat_sock_common_getsockopt,
#endif
};
/* Registration with AF_INET family. */
@ -1093,10 +1089,6 @@ static struct sctp_af sctp_af_inet = {
.net_header_len = sizeof(struct iphdr),
.sockaddr_len = sizeof(struct sockaddr_in),
.ip_options_len = sctp_v4_ip_options_len,
#ifdef CONFIG_COMPAT
.compat_setsockopt = compat_ip_setsockopt,
.compat_getsockopt = compat_ip_getsockopt,
#endif
};
struct sctp_pf *sctp_get_pf_specific(sa_family_t family)

9
net/smc/af_smc.c
View File

@ -1742,8 +1742,11 @@ static int smc_setsockopt(struct socket *sock, int level, int optname,
/* generic setsockopts reaching us here always apply to the
* CLC socket
*/
rc = smc->clcsock->ops->setsockopt(smc->clcsock, level, optname,
optval, optlen);
if (unlikely(!smc->clcsock->ops->setsockopt))
rc = -EOPNOTSUPP;
else
rc = smc->clcsock->ops->setsockopt(smc->clcsock, level, optname,
optval, optlen);
if (smc->clcsock->sk->sk_err) {
sk->sk_err = smc->clcsock->sk->sk_err;
sk->sk_error_report(sk);
@ -1808,6 +1811,8 @@ static int smc_getsockopt(struct socket *sock, int level, int optname,
smc = smc_sk(sock->sk);
/* socket options apply to the CLC socket */
if (unlikely(!smc->clcsock->ops->getsockopt))
return -EOPNOTSUPP;
return smc->clcsock->ops->getsockopt(smc->clcsock, level, optname,
optval, optlen);
}

111
net/socket.c
View File

@ -2094,9 +2094,8 @@ static bool sock_use_custom_sol_socket(const struct socket *sock)
* Set a socket option. Because we don't know the option lengths we have
* to pass the user mode parameter for the protocols to sort out.
*/
static int __sys_setsockopt(int fd, int level, int optname,
char __user *optval, int optlen)
int __sys_setsockopt(int fd, int level, int optname, char __user *optval,
int optlen)
{
mm_segment_t oldfs = get_fs();
char *kernel_optval = NULL;
@ -2107,43 +2106,44 @@ static int __sys_setsockopt(int fd, int level, int optname,
return -EINVAL;
sock = sockfd_lookup_light(fd, &err, &fput_needed);
if (sock != NULL) {
err = security_socket_setsockopt(sock, level, optname);
if (err)
goto out_put;
if (!sock)
return err;
err = BPF_CGROUP_RUN_PROG_SETSOCKOPT(sock->sk, &level,
&optname, optval, &optlen,
err = security_socket_setsockopt(sock, level, optname);
if (err)
goto out_put;
if (!in_compat_syscall())
err = BPF_CGROUP_RUN_PROG_SETSOCKOPT(sock->sk, &level, &optname,
optval, &optlen,
&kernel_optval);
if (err < 0) {
goto out_put;
} else if (err > 0) {
err = 0;
goto out_put;
}
if (kernel_optval) {
set_fs(KERNEL_DS);
optval = (char __user __force *)kernel_optval;
}
if (level == SOL_SOCKET && !sock_use_custom_sol_socket(sock))
err =
sock_setsockopt(sock, level, optname, optval,
optlen);
else
err =
sock->ops->setsockopt(sock, level, optname, optval,
optlen);
if (kernel_optval) {
set_fs(oldfs);
kfree(kernel_optval);
}
out_put:
fput_light(sock->file, fput_needed);
if (err < 0)
goto out_put;
if (err > 0) {
err = 0;
goto out_put;
}
if (kernel_optval) {
set_fs(KERNEL_DS);
optval = (char __user __force *)kernel_optval;
}
if (level == SOL_SOCKET && !sock_use_custom_sol_socket(sock))
err = sock_setsockopt(sock, level, optname, optval, optlen);
else if (unlikely(!sock->ops->setsockopt))
err = -EOPNOTSUPP;
else
err = sock->ops->setsockopt(sock, level, optname, optval,
optlen);
if (kernel_optval) {
set_fs(oldfs);
kfree(kernel_optval);
}
out_put:
fput_light(sock->file, fput_needed);
return err;
}
@ -2157,37 +2157,38 @@ SYSCALL_DEFINE5(setsockopt, int, fd, int, level, int, optname,
* Get a socket option. Because we don't know the option lengths we have
* to pass a user mode parameter for the protocols to sort out.
*/
static int __sys_getsockopt(int fd, int level, int optname,
char __user *optval, int __user *optlen)
int __sys_getsockopt(int fd, int level, int optname, char __user *optval,
int __user *optlen)
{
int err, fput_needed;
struct socket *sock;
int max_optlen;
sock = sockfd_lookup_light(fd, &err, &fput_needed);
if (sock != NULL) {
err = security_socket_getsockopt(sock, level, optname);
if (err)
goto out_put;
if (!sock)
return err;
err = security_socket_getsockopt(sock, level, optname);
if (err)
goto out_put;
if (!in_compat_syscall())
max_optlen = BPF_CGROUP_GETSOCKOPT_MAX_OPTLEN(optlen);
if (level == SOL_SOCKET)
err =
sock_getsockopt(sock, level, optname, optval,
if (level == SOL_SOCKET)
err = sock_getsockopt(sock, level, optname, optval, optlen);
else if (unlikely(!sock->ops->getsockopt))
err = -EOPNOTSUPP;
else
err = sock->ops->getsockopt(sock, level, optname, optval,
optlen);
else
err =
sock->ops->getsockopt(sock, level, optname, optval,
optlen);
if (!in_compat_syscall())
err = BPF_CGROUP_RUN_PROG_GETSOCKOPT(sock->sk, level, optname,
optval, optlen,
max_optlen, err);
optval, optlen, max_optlen,
err);
out_put:
fput_light(sock->file, fput_needed);
}
fput_light(sock->file, fput_needed);
return err;
}

6
net/unix/af_unix.c
View File

@ -714,8 +714,6 @@ static const struct proto_ops unix_stream_ops = {
#endif
.listen = unix_listen,
.shutdown = unix_shutdown,
.setsockopt = sock_no_setsockopt,
.getsockopt = sock_no_getsockopt,
.sendmsg = unix_stream_sendmsg,
.recvmsg = unix_stream_recvmsg,
.mmap = sock_no_mmap,
@ -741,8 +739,6 @@ static const struct proto_ops unix_dgram_ops = {
#endif
.listen = sock_no_listen,
.shutdown = unix_shutdown,
.setsockopt = sock_no_setsockopt,
.getsockopt = sock_no_getsockopt,
.sendmsg = unix_dgram_sendmsg,
.recvmsg = unix_dgram_recvmsg,
.mmap = sock_no_mmap,
@ -767,8 +763,6 @@ static const struct proto_ops unix_seqpacket_ops = {
#endif
.listen = unix_listen,
.shutdown = unix_shutdown,
.setsockopt = sock_no_setsockopt,
.getsockopt = sock_no_getsockopt,
.sendmsg = unix_seqpacket_sendmsg,
.recvmsg = unix_seqpacket_recvmsg,
.mmap = sock_no_mmap,

2
net/vmw_vsock/af_vsock.c
View File

@ -1202,8 +1202,6 @@ static const struct proto_ops vsock_dgram_ops = {
.ioctl = sock_no_ioctl,
.listen = sock_no_listen,
.shutdown = vsock_shutdown,
.setsockopt = sock_no_setsockopt,
.getsockopt = sock_no_getsockopt,
.sendmsg = vsock_dgram_sendmsg,
.recvmsg = vsock_dgram_recvmsg,
.mmap = sock_no_mmap,

4
tools/include/uapi/asm-generic/unistd.h
View File

@ -606,9 +606,9 @@ __SYSCALL(__NR_sendto, sys_sendto)
#define __NR_recvfrom 207
__SC_COMP(__NR_recvfrom, sys_recvfrom, compat_sys_recvfrom)
#define __NR_setsockopt 208
__SC_COMP(__NR_setsockopt, sys_setsockopt, compat_sys_setsockopt)
__SC_COMP(__NR_setsockopt, sys_setsockopt, sys_setsockopt)
#define __NR_getsockopt 209
__SC_COMP(__NR_getsockopt, sys_getsockopt, compat_sys_getsockopt)
__SC_COMP(__NR_getsockopt, sys_getsockopt, sys_getsockopt)
#define __NR_shutdown 210
__SYSCALL(__NR_shutdown, sys_shutdown)
#define __NR_sendmsg 211

4
tools/perf/arch/powerpc/entry/syscalls/syscall.tbl
View File

@ -427,8 +427,8 @@
336 common recv sys_recv compat_sys_recv
337 common recvfrom sys_recvfrom compat_sys_recvfrom
338 common shutdown sys_shutdown
339 common setsockopt sys_setsockopt compat_sys_setsockopt
340 common getsockopt sys_getsockopt compat_sys_getsockopt
339 common setsockopt sys_setsockopt sys_setsockopt
340 common getsockopt sys_getsockopt sys_getsockopt
341 common sendmsg sys_sendmsg compat_sys_sendmsg
342 common recvmsg sys_recvmsg compat_sys_recvmsg
343 32 recvmmsg sys_recvmmsg_time32 compat_sys_recvmmsg_time32

4
tools/perf/arch/s390/entry/syscalls/syscall.tbl
View File

@ -372,8 +372,8 @@
362 common connect sys_connect compat_sys_connect
363 common listen sys_listen sys_listen
364 common accept4 sys_accept4 compat_sys_accept4
365 common getsockopt sys_getsockopt compat_sys_getsockopt
366 common setsockopt sys_setsockopt compat_sys_setsockopt
365 common getsockopt sys_getsockopt sys_getsockopt
366 common setsockopt sys_setsockopt sys_setsockopt
367 common getsockname sys_getsockname compat_sys_getsockname
368 common getpeername sys_getpeername compat_sys_getpeername
369 common sendto sys_sendto compat_sys_sendto

4
tools/perf/arch/x86/entry/syscalls/syscall_64.tbl
View File

@ -396,8 +396,8 @@
538 x32 sendmmsg compat_sys_sendmmsg
539 x32 process_vm_readv compat_sys_process_vm_readv
540 x32 process_vm_writev compat_sys_process_vm_writev
541 x32 setsockopt compat_sys_setsockopt
542 x32 getsockopt compat_sys_getsockopt
541 x32 setsockopt sys_setsockopt
542 x32 getsockopt sys_getsockopt
543 x32 io_setup compat_sys_io_setup
544 x32 io_submit compat_sys_io_submit
545 x32 execveat compat_sys_execveat