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| author | Richard Haines <richard_c_haines@btinternet.com> | 2018-02-24 16:18:51 +0000 |
|---|---|---|
| committer | Paul Moore <paul@paul-moore.com> | 2018-02-26 17:43:54 -0500 |
| commit | b7e10c25b839c0c7579b2b402afc9883c107e09f (patch) | |
| tree | ff919f7f54cb047461fcb747649f77c8e1de539e /include/net | |
| parent | 72e89f50084c6dbc58a00aeedf92c450dc1a8b1c (diff) | |
| download | linux-b7e10c25b839c0c7579b2b402afc9883c107e09f.tar.gz linux-b7e10c25b839c0c7579b2b402afc9883c107e09f.tar.xz | |
sctp: Add ip option support
Add ip option support to allow LSM security modules to utilise CIPSO/IPv4
and CALIPSO/IPv6 services.
Signed-off-by: Richard Haines <richard_c_haines@btinternet.com>
Acked-by: Neil Horman <nhorman@tuxdriver.com>
Acked-by: Marcelo Ricardo Leitner <marcelo.leitner@gmail.com>
Signed-off-by: Paul Moore <paul@paul-moore.com>
Diffstat (limited to 'include/net')
| -rw-r--r-- | include/net/sctp/sctp.h | 4 | ||||
| -rw-r--r-- | include/net/sctp/structs.h | 2 |
2 files changed, 5 insertions, 1 deletions
diff --git a/include/net/sctp/sctp.h b/include/net/sctp/sctp.h index f7ae6b0a21d0..25c5c8768818 100644 --- a/include/net/sctp/sctp.h +++ b/include/net/sctp/sctp.h @@ -441,9 +441,11 @@ static inline int sctp_list_single_entry(struct list_head *head) static inline int sctp_frag_point(const struct sctp_association *asoc, int pmtu) { struct sctp_sock *sp = sctp_sk(asoc->base.sk); + struct sctp_af *af = sp->pf->af; int frag = pmtu; - frag -= sp->pf->af->net_header_len; + frag -= af->ip_options_len(asoc->base.sk); + frag -= af->net_header_len; frag -= sizeof(struct sctphdr) + sctp_datachk_len(&asoc->stream); if (asoc->user_frag) diff --git a/include/net/sctp/structs.h b/include/net/sctp/structs.h index 03e92dda1813..ead5fcedc283 100644 --- a/include/net/sctp/structs.h +++ b/include/net/sctp/structs.h @@ -491,6 +491,7 @@ struct sctp_af { void (*ecn_capable)(struct sock *sk); __u16 net_header_len; int sockaddr_len; + int (*ip_options_len)(struct sock *sk); sa_family_t sa_family; struct list_head list; }; @@ -515,6 +516,7 @@ struct sctp_pf { int (*addr_to_user)(struct sctp_sock *sk, union sctp_addr *addr); void (*to_sk_saddr)(union sctp_addr *, struct sock *sk); void (*to_sk_daddr)(union sctp_addr *, struct sock *sk); + void (*copy_ip_options)(struct sock *sk, struct sock *newsk); struct sctp_af *af; }; |