sctp: Push struct net down into sctp_verify_ext_param

Add struct net as a parameter to sctp_verify_param so it can be passed
to sctp_verify_ext_param where struct net will be needed when the sctp
tunables become per net tunables.

Add struct net as a parameter to sctp_verify_init so struct net can be
passed to sctp_verify_param.

Signed-off-by: "Eric W. Biederman" <ebiederm@xmission.com>
Signed-off-by: David S. Miller <davem@davemloft.net>

2 files changed, 9 insertions, 8 deletions

diff --git a/net/sctp/sm_make_chunk.c b/net/sctp/sm_make_chunk.c
index fb12835e95c2..a4b096f85a68 100644
--- a/net/sctp/sm_make_chunk.c
+++ b/net/sctp/sm_make_chunk.c
@@ -1940,7 +1940,7 @@ static int sctp_process_hn_param(const struct sctp_association *asoc,
         return 0;
 }
 
-static int sctp_verify_ext_param(union sctp_params param)
+static int sctp_verify_ext_param(struct net *net, union sctp_params param)
 {
         __u16 num_ext = ntohs(param.p->length) - sizeof(sctp_paramhdr_t);
         int have_auth = 0;
@@ -2081,7 +2081,8 @@ static sctp_ierror_t sctp_process_unk_param(const struct sctp_association *asoc,
  *      SCTP_IERROR_ERROR - stop processing, trigger an ERROR
  *      SCTP_IERROR_NO_ERROR - continue with the chunk
  */
-static sctp_ierror_t sctp_verify_param(const struct sctp_association *asoc,
+static sctp_ierror_t sctp_verify_param(struct net *net,
+                                        const struct sctp_association *asoc,
                                         union sctp_params param,
                                         sctp_cid_t cid,
                                         struct sctp_chunk *chunk,
@@ -2110,7 +2111,7 @@ static sctp_ierror_t sctp_verify_param(const struct sctp_association *asoc,
                 break;
 
         case SCTP_PARAM_SUPPORTED_EXT:
-                if (!sctp_verify_ext_param(param))
+                if (!sctp_verify_ext_param(net, param))
                         return SCTP_IERROR_ABORT;
                 break;
 
@@ -2198,7 +2199,7 @@ fallthrough:
 }
 
 /* Verify the INIT packet before we process it.  */
-int sctp_verify_init(const struct sctp_association *asoc,
+int sctp_verify_init(struct net *net, const struct sctp_association *asoc,
                      sctp_cid_t cid,
                      sctp_init_chunk_t *peer_init,
                      struct sctp_chunk *chunk,
@@ -2245,7 +2246,7 @@ int sctp_verify_init(const struct sctp_association *asoc,
         /* Verify all the variable length parameters */
         sctp_walk_params(param, peer_init, init_hdr.params) {
 
-                result = sctp_verify_param(asoc, param, cid, chunk, errp);
+                result = sctp_verify_param(net, asoc, param, cid, chunk, errp);
                 switch (result) {
                     case SCTP_IERROR_ABORT:
                     case SCTP_IERROR_NOMEM:
diff --git a/net/sctp/sm_statefuns.c b/net/sctp/sm_statefuns.c
index 19f3bff84193..e17ada47afc4 100644
--- a/net/sctp/sm_statefuns.c
+++ b/net/sctp/sm_statefuns.c
@@ -364,7 +364,7 @@ sctp_disposition_t sctp_sf_do_5_1B_init(struct net *net,
 
         /* Verify the INIT chunk before processing it. */
         err_chunk = NULL;
-        if (!sctp_verify_init(asoc, chunk->chunk_hdr->type,
+        if (!sctp_verify_init(net, asoc, chunk->chunk_hdr->type,
                               (sctp_init_chunk_t *)chunk->chunk_hdr, chunk,
                               &err_chunk)) {
                 /* This chunk contains fatal error. It is to be discarded.
@@ -531,7 +531,7 @@ sctp_disposition_t sctp_sf_do_5_1C_ack(struct net *net,
 
         /* Verify the INIT chunk before processing it. */
         err_chunk = NULL;
-        if (!sctp_verify_init(asoc, chunk->chunk_hdr->type,
+        if (!sctp_verify_init(net, asoc, chunk->chunk_hdr->type,
                               (sctp_init_chunk_t *)chunk->chunk_hdr, chunk,
                               &err_chunk)) {
 
@@ -1429,7 +1429,7 @@ static sctp_disposition_t sctp_sf_do_unexpected_init(
 
         /* Verify the INIT chunk before processing it. */
         err_chunk = NULL;
-        if (!sctp_verify_init(asoc, chunk->chunk_hdr->type,
+        if (!sctp_verify_init(net, asoc, chunk->chunk_hdr->type,
                               (sctp_init_chunk_t *)chunk->chunk_hdr, chunk,
                               &err_chunk)) {
                 /* This chunk contains fatal error. It is to be discarded.