sctp: remove the typedef sctp_errhdr_t

This patch is to remove the typedef sctp_errhdr_t, and replace
with struct sctp_errhdr in the places where it's using this
typedef.

It is also to use sizeof(variable) instead of sizeof(type).

Signed-off-by: Xin Long <lucien.xin@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
This commit is contained in:
Xin Long 2017-08-03 15:42:11 +08:00 committed by David S. Miller
parent ac23e68133
commit d8238d9dab
6 changed files with 48 additions and 45 deletions

View File

@ -427,15 +427,15 @@ struct sctp_shutdown_chunk {
/* RFC 2960. Section 3.3.10 Operation Error (ERROR) (9) */
typedef struct sctp_errhdr {
struct sctp_errhdr {
__be16 cause;
__be16 length;
__u8 variable[0];
} sctp_errhdr_t;
};
typedef struct sctp_operr_chunk {
struct sctp_chunkhdr chunk_hdr;
sctp_errhdr_t err_hdr;
struct sctp_errhdr err_hdr;
} sctp_operr_chunk_t;
/* RFC 2960 3.3.10 - Operation Error

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@ -479,13 +479,13 @@ for (pos.v = chunk->member;\
_sctp_walk_errors((err), (chunk_hdr), ntohs((chunk_hdr)->length))
#define _sctp_walk_errors(err, chunk_hdr, end)\
for (err = (sctp_errhdr_t *)((void *)chunk_hdr + \
for (err = (struct sctp_errhdr *)((void *)chunk_hdr + \
sizeof(struct sctp_chunkhdr));\
((void *)err + offsetof(sctp_errhdr_t, length) + sizeof(err->length) <=\
((void *)err + offsetof(struct sctp_errhdr, length) + sizeof(err->length) <=\
(void *)chunk_hdr + end) &&\
(void *)err <= (void *)chunk_hdr + end - ntohs(err->length) &&\
ntohs(err->length) >= sizeof(sctp_errhdr_t); \
err = (sctp_errhdr_t *)((void *)err + SCTP_PAD4(ntohs(err->length))))
ntohs(err->length) >= sizeof(struct sctp_errhdr); \
err = (struct sctp_errhdr *)((void *)err + SCTP_PAD4(ntohs(err->length))))
#define sctp_walk_fwdtsn(pos, chunk)\
_sctp_walk_fwdtsn((pos), (chunk), ntohs((chunk)->chunk_hdr->length) - sizeof(struct sctp_fwdtsn_chunk))

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@ -135,14 +135,14 @@ static const struct sctp_paramhdr prsctp_param = {
void sctp_init_cause(struct sctp_chunk *chunk, __be16 cause_code,
size_t paylen)
{
sctp_errhdr_t err;
struct sctp_errhdr err;
__u16 len;
/* Cause code constants are now defined in network order. */
err.cause = cause_code;
len = sizeof(sctp_errhdr_t) + paylen;
len = sizeof(err) + paylen;
err.length = htons(len);
chunk->subh.err_hdr = sctp_addto_chunk(chunk, sizeof(sctp_errhdr_t), &err);
chunk->subh.err_hdr = sctp_addto_chunk(chunk, sizeof(err), &err);
}
/* A helper to initialize an op error inside a
@ -153,19 +153,19 @@ void sctp_init_cause(struct sctp_chunk *chunk, __be16 cause_code,
static int sctp_init_cause_fixed(struct sctp_chunk *chunk, __be16 cause_code,
size_t paylen)
{
sctp_errhdr_t err;
struct sctp_errhdr err;
__u16 len;
/* Cause code constants are now defined in network order. */
err.cause = cause_code;
len = sizeof(sctp_errhdr_t) + paylen;
len = sizeof(err) + paylen;
err.length = htons(len);
if (skb_tailroom(chunk->skb) < len)
return -ENOSPC;
chunk->subh.err_hdr = sctp_addto_chunk_fixed(chunk,
sizeof(sctp_errhdr_t),
&err);
chunk->subh.err_hdr = sctp_addto_chunk_fixed(chunk, sizeof(err), &err);
return 0;
}
/* 3.3.2 Initiation (INIT) (1)
@ -979,8 +979,8 @@ struct sctp_chunk *sctp_make_abort_no_data(
struct sctp_chunk *retval;
__be32 payload;
retval = sctp_make_abort(asoc, chunk, sizeof(sctp_errhdr_t)
+ sizeof(tsn));
retval = sctp_make_abort(asoc, chunk,
sizeof(struct sctp_errhdr) + sizeof(tsn));
if (!retval)
goto no_mem;
@ -1015,7 +1015,8 @@ struct sctp_chunk *sctp_make_abort_user(const struct sctp_association *asoc,
void *payload = NULL;
int err;
retval = sctp_make_abort(asoc, NULL, sizeof(sctp_errhdr_t) + paylen);
retval = sctp_make_abort(asoc, NULL,
sizeof(struct sctp_errhdr) + paylen);
if (!retval)
goto err_chunk;
@ -1080,8 +1081,8 @@ struct sctp_chunk *sctp_make_abort_violation(
struct sctp_chunk *retval;
struct sctp_paramhdr phdr;
retval = sctp_make_abort(asoc, chunk, sizeof(sctp_errhdr_t) + paylen +
sizeof(phdr));
retval = sctp_make_abort(asoc, chunk, sizeof(struct sctp_errhdr) +
paylen + sizeof(phdr));
if (!retval)
goto end;
@ -1104,7 +1105,7 @@ struct sctp_chunk *sctp_make_violation_paramlen(
{
struct sctp_chunk *retval;
static const char error[] = "The following parameter had invalid length:";
size_t payload_len = sizeof(error) + sizeof(sctp_errhdr_t) +
size_t payload_len = sizeof(error) + sizeof(struct sctp_errhdr) +
sizeof(*param);
retval = sctp_make_abort(asoc, chunk, payload_len);
@ -1126,7 +1127,7 @@ struct sctp_chunk *sctp_make_violation_max_retrans(
{
struct sctp_chunk *retval;
static const char error[] = "Association exceeded its max_retans count";
size_t payload_len = sizeof(error) + sizeof(sctp_errhdr_t);
size_t payload_len = sizeof(error) + sizeof(struct sctp_errhdr);
retval = sctp_make_abort(asoc, chunk, payload_len);
if (!retval)
@ -1209,7 +1210,8 @@ static struct sctp_chunk *sctp_make_op_error_space(
struct sctp_chunk *retval;
retval = sctp_make_control(asoc, SCTP_CID_ERROR, 0,
sizeof(sctp_errhdr_t) + size, GFP_ATOMIC);
sizeof(struct sctp_errhdr) + size,
GFP_ATOMIC);
if (!retval)
goto nodata;
@ -2966,7 +2968,7 @@ static void sctp_add_asconf_response(struct sctp_chunk *chunk, __be32 crr_id,
__be16 err_code, sctp_addip_param_t *asconf_param)
{
sctp_addip_param_t ack_param;
sctp_errhdr_t err_param;
struct sctp_errhdr err_param;
int asconf_param_len = 0;
int err_param_len = 0;
__be16 response_type;
@ -3351,7 +3353,7 @@ static __be16 sctp_get_asconf_response(struct sctp_chunk *asconf_ack,
int no_err)
{
sctp_addip_param_t *asconf_ack_param;
sctp_errhdr_t *err_param;
struct sctp_errhdr *err_param;
int length;
int asconf_ack_len;
__be16 err_code;

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@ -828,7 +828,7 @@ static void sctp_cmd_assoc_update(sctp_cmd_seq_t *cmds,
if (!sctp_assoc_update(asoc, new))
return;
abort = sctp_make_abort(asoc, NULL, sizeof(sctp_errhdr_t));
abort = sctp_make_abort(asoc, NULL, sizeof(struct sctp_errhdr));
if (abort) {
sctp_init_cause(abort, SCTP_ERROR_RSRC_LOW, 0);
sctp_add_cmd_sf(cmds, SCTP_CMD_REPLY, SCTP_CHUNK(abort));

View File

@ -1233,7 +1233,7 @@ static int sctp_sf_send_restart_abort(struct net *net, union sctp_addr *ssa,
union sctp_addr_param *addrparm;
struct sctp_errhdr *errhdr;
struct sctp_endpoint *ep;
char buffer[sizeof(struct sctp_errhdr)+sizeof(union sctp_addr_param)];
char buffer[sizeof(*errhdr) + sizeof(*addrparm)];
struct sctp_af *af = sctp_get_af_specific(ssa->v4.sin_family);
/* Build the error on the stack. We are way to malloc crazy
@ -1244,7 +1244,7 @@ static int sctp_sf_send_restart_abort(struct net *net, union sctp_addr *ssa,
/* Copy into a parm format. */
len = af->to_addr_param(ssa, addrparm);
len += sizeof(sctp_errhdr_t);
len += sizeof(*errhdr);
errhdr->cause = SCTP_ERROR_RESTART;
errhdr->length = htons(len);
@ -2270,7 +2270,7 @@ sctp_disposition_t sctp_sf_cookie_echoed_err(struct net *net,
sctp_cmd_seq_t *commands)
{
struct sctp_chunk *chunk = arg;
sctp_errhdr_t *err;
struct sctp_errhdr *err;
if (!sctp_vtag_verify(chunk, asoc))
return sctp_sf_pdiscard(net, ep, asoc, type, arg, commands);
@ -2337,7 +2337,7 @@ static sctp_disposition_t sctp_sf_do_5_2_6_stale(struct net *net,
struct sctp_chunk *chunk = arg, *reply;
struct sctp_cookie_preserve_param bht;
struct sctp_bind_addr *bp;
sctp_errhdr_t *err;
struct sctp_errhdr *err;
u32 stale;
if (attempts > asoc->max_init_attempts) {
@ -2348,7 +2348,7 @@ static sctp_disposition_t sctp_sf_do_5_2_6_stale(struct net *net,
return SCTP_DISPOSITION_DELETE_TCB;
}
err = (sctp_errhdr_t *)(chunk->skb->data);
err = (struct sctp_errhdr *)(chunk->skb->data);
/* When calculating the time extension, an implementation
* SHOULD use the RTT information measured based on the
@ -2364,7 +2364,7 @@ static sctp_disposition_t sctp_sf_do_5_2_6_stale(struct net *net,
* to give ample time to retransmit the new cookie and thus
* yield a higher probability of success on the reattempt.
*/
stale = ntohl(*(__be32 *)((u8 *)err + sizeof(sctp_errhdr_t)));
stale = ntohl(*(__be32 *)((u8 *)err + sizeof(*err)));
stale = (stale * 2) / 1000;
bht.param_hdr.type = SCTP_PARAM_COOKIE_PRESERVATIVE;
@ -2499,13 +2499,14 @@ static sctp_disposition_t __sctp_sf_do_9_1_abort(struct net *net,
/* See if we have an error cause code in the chunk. */
len = ntohs(chunk->chunk_hdr->length);
if (len >= sizeof(struct sctp_chunkhdr) + sizeof(struct sctp_errhdr)) {
struct sctp_errhdr *err;
sctp_errhdr_t *err;
sctp_walk_errors(err, chunk->chunk_hdr);
if ((void *)err != (void *)chunk->chunk_end)
return sctp_sf_pdiscard(net, ep, asoc, type, arg, commands);
return sctp_sf_pdiscard(net, ep, asoc, type, arg,
commands);
error = ((sctp_errhdr_t *)chunk->skb->data)->cause;
error = ((struct sctp_errhdr *)chunk->skb->data)->cause;
}
sctp_add_cmd_sf(commands, SCTP_CMD_SET_SK_ERR, SCTP_ERROR(ECONNRESET));
@ -2552,7 +2553,7 @@ sctp_disposition_t sctp_sf_cookie_wait_abort(struct net *net,
/* See if we have an error cause code in the chunk. */
len = ntohs(chunk->chunk_hdr->length);
if (len >= sizeof(struct sctp_chunkhdr) + sizeof(struct sctp_errhdr))
error = ((sctp_errhdr_t *)chunk->skb->data)->cause;
error = ((struct sctp_errhdr *)chunk->skb->data)->cause;
return sctp_stop_t1_and_abort(net, commands, error, ECONNREFUSED, asoc,
chunk->transport);
@ -3310,7 +3311,7 @@ sctp_disposition_t sctp_sf_operr_notify(struct net *net,
sctp_cmd_seq_t *commands)
{
struct sctp_chunk *chunk = arg;
sctp_errhdr_t *err;
struct sctp_errhdr *err;
if (!sctp_vtag_verify(chunk, asoc))
return sctp_sf_pdiscard(net, ep, asoc, type, arg, commands);
@ -3433,7 +3434,7 @@ sctp_disposition_t sctp_sf_ootb(struct net *net,
struct sctp_chunk *chunk = arg;
struct sk_buff *skb = chunk->skb;
struct sctp_chunkhdr *ch;
sctp_errhdr_t *err;
struct sctp_errhdr *err;
__u8 *ch_end;
int ootb_shut_ack = 0;
int ootb_cookie_ack = 0;
@ -3776,7 +3777,7 @@ sctp_disposition_t sctp_sf_do_asconf_ack(struct net *net,
if (ADDIP_SERIAL_gte(rcvd_serial, sent_serial + 1) &&
!(asoc->addip_last_asconf)) {
abort = sctp_make_abort(asoc, asconf_ack,
sizeof(sctp_errhdr_t));
sizeof(struct sctp_errhdr));
if (abort) {
sctp_init_cause(abort, SCTP_ERROR_ASCONF_ACK, 0);
sctp_add_cmd_sf(commands, SCTP_CMD_REPLY,
@ -3812,7 +3813,7 @@ sctp_disposition_t sctp_sf_do_asconf_ack(struct net *net,
}
abort = sctp_make_abort(asoc, asconf_ack,
sizeof(sctp_errhdr_t));
sizeof(struct sctp_errhdr));
if (abort) {
sctp_init_cause(abort, SCTP_ERROR_RSRC_LOW, 0);
sctp_add_cmd_sf(commands, SCTP_CMD_REPLY,

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@ -371,19 +371,19 @@ sctp_ulpevent_make_remote_error(const struct sctp_association *asoc,
struct sctp_chunk *chunk, __u16 flags,
gfp_t gfp)
{
struct sctp_ulpevent *event;
struct sctp_remote_error *sre;
struct sctp_ulpevent *event;
struct sctp_errhdr *ch;
struct sk_buff *skb;
sctp_errhdr_t *ch;
__be16 cause;
int elen;
ch = (sctp_errhdr_t *)(chunk->skb->data);
ch = (struct sctp_errhdr *)(chunk->skb->data);
cause = ch->cause;
elen = SCTP_PAD4(ntohs(ch->length)) - sizeof(sctp_errhdr_t);
elen = SCTP_PAD4(ntohs(ch->length)) - sizeof(*ch);
/* Pull off the ERROR header. */
skb_pull(chunk->skb, sizeof(sctp_errhdr_t));
skb_pull(chunk->skb, sizeof(*ch));
/* Copy the skb to a new skb with room for us to prepend
* notification with.