[PATCH net-next 27/27] sctp: add reconf chunk event
flat view
STALE3566d
From: Xin Long <lucien.xin@gmail.com>
Date: 2017-01-01 11:24:28
Also in:
linux-sctp
Subsystem:
networking [general], sctp protocol, the rest · Maintainers:
"David S. Miller", Eric Dumazet, Jakub Kicinski, Paolo Abeni, Marcelo Ricardo Leitner, Xin Long, Linus Torvalds
This patch is to add reconf chunk event based on the sctp event frame, after which, the reconf chunk process would be activated. Signed-off-by: Xin Long <lucien.xin@gmail.com> --- include/net/sctp/constants.h | 3 +++ net/sctp/sm_statetable.c | 30 ++++++++++++++++++++++++++++++ 2 files changed, 33 insertions(+)
diff --git a/include/net/sctp/constants.h b/include/net/sctp/constants.h
index 3567c97..b07a745 100644
--- a/include/net/sctp/constants.h
+++ b/include/net/sctp/constants.h@@ -60,11 +60,14 @@ enum { SCTP_DEFAULT_INSTREAMS = SCTP_MAX_STREAM }; #define SCTP_NUM_PRSCTP_CHUNK_TYPES 1 +#define SCTP_NUM_RECONF_CHUNK_TYPES 1 + #define SCTP_NUM_AUTH_CHUNK_TYPES 1 #define SCTP_NUM_CHUNK_TYPES (SCTP_NUM_BASE_CHUNK_TYPES + \ SCTP_NUM_ADDIP_CHUNK_TYPES +\ SCTP_NUM_PRSCTP_CHUNK_TYPES +\ + SCTP_NUM_RECONF_CHUNK_TYPES +\ SCTP_NUM_AUTH_CHUNK_TYPES) /* These are the different flavours of event. */
diff --git a/net/sctp/sm_statetable.c b/net/sctp/sm_statetable.c
index b5438b4..419b18e 100644
--- a/net/sctp/sm_statetable.c
+++ b/net/sctp/sm_statetable.c@@ -482,6 +482,32 @@ static const sctp_sm_table_entry_t prsctp_chunk_event_table[SCTP_NUM_PRSCTP_CHUN TYPE_SCTP_FWD_TSN, }; /*state_fn_t prsctp_chunk_event_table[][] */ +#define TYPE_SCTP_RECONF { \ + /* SCTP_STATE_CLOSED */ \ + TYPE_SCTP_FUNC(sctp_sf_discard_chunk), \ + /* SCTP_STATE_COOKIE_WAIT */ \ + TYPE_SCTP_FUNC(sctp_sf_discard_chunk), \ + /* SCTP_STATE_COOKIE_ECHOED */ \ + TYPE_SCTP_FUNC(sctp_sf_discard_chunk), \ + /* SCTP_STATE_ESTABLISHED */ \ + TYPE_SCTP_FUNC(sctp_sf_do_reconf), \ + /* SCTP_STATE_SHUTDOWN_PENDING */ \ + TYPE_SCTP_FUNC(sctp_sf_do_reconf), \ + /* SCTP_STATE_SHUTDOWN_SENT */ \ + TYPE_SCTP_FUNC(sctp_sf_discard_chunk), \ + /* SCTP_STATE_SHUTDOWN_RECEIVED */ \ + TYPE_SCTP_FUNC(sctp_sf_discard_chunk), \ + /* SCTP_STATE_SHUTDOWN_ACK_SENT */ \ + TYPE_SCTP_FUNC(sctp_sf_discard_chunk), \ +} /* TYPE_SCTP_RECONF */ + +/* The primary index for this table is the chunk type. + * The secondary index for this table is the state. + */ +static const sctp_sm_table_entry_t reconf_chunk_event_table[SCTP_NUM_RECONF_CHUNK_TYPES][SCTP_STATE_NUM_STATES] = { + TYPE_SCTP_RECONF, +}; /*state_fn_t reconf_chunk_event_table[][] */ + #define TYPE_SCTP_AUTH { \ /* SCTP_STATE_CLOSED */ \ TYPE_SCTP_FUNC(sctp_sf_ootb), \
@@ -964,6 +990,10 @@ static const sctp_sm_table_entry_t *sctp_chunk_event_lookup(struct net *net, return &addip_chunk_event_table[1][state]; } + if (net->sctp.reconf_enable) + if (cid == SCTP_CID_RECONF) + return &reconf_chunk_event_table[0][state]; + if (net->sctp.auth_enable) { if (cid == SCTP_CID_AUTH) return &auth_chunk_event_table[0][state];
--
2.1.0