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net: Correct size of NFS buffers

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Reported-by: Coverity (CID: 152888)
Signed-off-by: Joe Hershberger <joe.hershberger@ni.com>
This commit is contained in:
Joe Hershberger 2018-07-03 19:22:54 -05:00
parent f40a31e695
commit 2d114b83a7
1 changed files with 5 additions and 2 deletions
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7
net/nfs.h
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@ -42,6 +42,7 @@
* case, most NFS servers are optimized for a power of 2.
*/
#define NFS_READ_SIZE 1024 /* biggest power of two that fits Ether frame */
#define NFS_MAX_ATTRS 26
/* Values for Accept State flag on RPC answers (See: rfc1831) */
enum rpc_accept_stat {
@ -55,7 +56,8 @@ enum rpc_accept_stat {
struct rpc_t {
union {
uint8_t data[2048];
uint8_t data[NFS_READ_SIZE + (6 + NFS_MAX_ATTRS) *
sizeof(uint32_t)];
struct {
uint32_t id;
uint32_t type;
@ -72,7 +74,8 @@ struct rpc_t {
uint32_t verifier;
uint32_t v2;
uint32_t astatus;
uint32_t data[NFS_READ_SIZE];
uint32_t data[NFS_READ_SIZE / sizeof(uint32_t) +
NFS_MAX_ATTRS];
} reply;
} u;
} __attribute__((packed));