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sctp: remove the typedef sctp_auth_chunk_t

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This patch is to remove the typedef sctp_auth_chunk_t, and
replace with struct sctp_auth_chunk 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 15:42:22 +08:00 committed by David S. Miller
parent 96f7ef4d58
commit bb96dec745
3 changed files with 8 additions and 7 deletions
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4
include/linux/sctp.h
View File

@ -699,10 +699,10 @@ struct sctp_authhdr {
__u8 hmac[0];
};
typedef struct sctp_auth_chunk {
struct sctp_auth_chunk {
struct sctp_chunkhdr chunk_hdr;
struct sctp_authhdr auth_hdr;
} sctp_auth_chunk_t;
};
struct sctp_infox {
struct sctp_info *sctpinfo;

2
net/sctp/chunk.c
View File

@ -201,7 +201,7 @@ struct sctp_datamsg *sctp_datamsg_from_user(struct sctp_association *asoc,
struct sctp_hmac *hmac_desc = sctp_auth_asoc_get_hmac(asoc);
if (hmac_desc)
max_data -= SCTP_PAD4(sizeof(sctp_auth_chunk_t) +
max_data -= SCTP_PAD4(sizeof(struct sctp_auth_chunk) +
hmac_desc->hmac_len);
}

9
net/sctp/sm_statefuns.c
View File

@ -4093,7 +4093,7 @@ static sctp_ierror_t sctp_sf_authenticate(struct net *net,
/* Pull in the auth header, so we can do some more verification */
auth_hdr = (struct sctp_authhdr *)chunk->skb->data;
chunk->subh.auth_hdr = auth_hdr;
skb_pull(chunk->skb, sizeof(struct sctp_authhdr));
skb_pull(chunk->skb, sizeof(*auth_hdr));
/* Make sure that we support the HMAC algorithm from the auth
* chunk.
@ -4112,7 +4112,8 @@ static sctp_ierror_t sctp_sf_authenticate(struct net *net,
/* Make sure that the length of the signature matches what
* we expect.
*/
sig_len = ntohs(chunk->chunk_hdr->length) - sizeof(sctp_auth_chunk_t);
sig_len = ntohs(chunk->chunk_hdr->length) -
sizeof(struct sctp_auth_chunk);
hmac = sctp_auth_get_hmac(ntohs(auth_hdr->hmac_id));
if (sig_len != hmac->hmac_len)
return SCTP_IERROR_PROTO_VIOLATION;
@ -4134,8 +4135,8 @@ static sctp_ierror_t sctp_sf_authenticate(struct net *net,
memset(digest, 0, sig_len);
sctp_auth_calculate_hmac(asoc, chunk->skb,
(struct sctp_auth_chunk *)chunk->chunk_hdr,
GFP_ATOMIC);
(struct sctp_auth_chunk *)chunk->chunk_hdr,
GFP_ATOMIC);
/* Discard the packet if the digests do not match */
if (memcmp(save_digest, digest, sig_len)) {