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| author | Vlad Yasevich <vladislav.yasevich@hp.com> | 2007-09-16 19:31:35 -0700 |
|---|---|---|
| committer | David S. Miller <davem@sunset.davemloft.net> | 2007-10-10 16:51:30 -0700 |
| commit | a29a5bd4f5c3e8ba2e89688feab8b01c44f1654f (patch) | |
| tree | 2b98f0d572fee7dff79373c64f95a61f940db7e9 /net/sctp/associola.c | |
| parent | 1f485649f52929d9937b346a920a522a7363e202 (diff) | |
| download | linux-a29a5bd4f5c3e8ba2e89688feab8b01c44f1654f.tar.bz2 | |
[SCTP]: Implement SCTP-AUTH initializations.
The patch initializes AUTH related members of the generic SCTP
structures and provides a way to enable/disable auth extension.
Signed-off-by: Vlad Yasevich <vladislav.yasevich@hp.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Diffstat (limited to 'net/sctp/associola.c')
| -rw-r--r-- | net/sctp/associola.c | 34 |
1 files changed, 34 insertions, 0 deletions
diff --git a/net/sctp/associola.c b/net/sctp/associola.c index 9bad8ba0feda..ee4b212e66b1 100644 --- a/net/sctp/associola.c +++ b/net/sctp/associola.c @@ -74,6 +74,8 @@ static struct sctp_association *sctp_association_init(struct sctp_association *a { struct sctp_sock *sp; int i; + sctp_paramhdr_t *p; + int err; /* Retrieve the SCTP per socket area. */ sp = sctp_sk((struct sock *)sk); @@ -298,6 +300,30 @@ static struct sctp_association *sctp_association_init(struct sctp_association *a asoc->default_timetolive = sp->default_timetolive; asoc->default_rcv_context = sp->default_rcv_context; + /* AUTH related initializations */ + INIT_LIST_HEAD(&asoc->endpoint_shared_keys); + err = sctp_auth_asoc_copy_shkeys(ep, asoc, gfp); + if (err) + goto fail_init; + + asoc->active_key_id = ep->active_key_id; + asoc->asoc_shared_key = NULL; + + asoc->default_hmac_id = 0; + /* Save the hmacs and chunks list into this association */ + if (ep->auth_hmacs_list) + memcpy(asoc->c.auth_hmacs, ep->auth_hmacs_list, + ntohs(ep->auth_hmacs_list->param_hdr.length)); + if (ep->auth_chunk_list) + memcpy(asoc->c.auth_chunks, ep->auth_chunk_list, + ntohs(ep->auth_chunk_list->param_hdr.length)); + + /* Get the AUTH random number for this association */ + p = (sctp_paramhdr_t *)asoc->c.auth_random; + p->type = SCTP_PARAM_RANDOM; + p->length = htons(sizeof(sctp_paramhdr_t) + SCTP_AUTH_RANDOM_LENGTH); + get_random_bytes(p+1, SCTP_AUTH_RANDOM_LENGTH); + return asoc; fail_init: @@ -407,6 +433,12 @@ void sctp_association_free(struct sctp_association *asoc) if (asoc->addip_last_asconf) sctp_chunk_free(asoc->addip_last_asconf); + /* AUTH - Free the endpoint shared keys */ + sctp_auth_destroy_keys(&asoc->endpoint_shared_keys); + + /* AUTH - Free the association shared key */ + sctp_auth_key_put(asoc->asoc_shared_key); + sctp_association_put(asoc); } @@ -1112,6 +1144,8 @@ void sctp_assoc_update(struct sctp_association *asoc, sctp_assoc_set_id(asoc, GFP_ATOMIC); } } + + /* SCTP-AUTH: XXX something needs to be done here*/ } /* Update the retran path for sending a retransmitted packet. |