diff options
Diffstat (limited to 'include/net/sctp')
| -rw-r--r-- | include/net/sctp/sctp.h | 12 | ||||
| -rw-r--r-- | include/net/sctp/structs.h | 36 | ||||
| -rw-r--r-- | include/net/sctp/user.h | 27 |
3 files changed, 75 insertions, 0 deletions
diff --git a/include/net/sctp/sctp.h b/include/net/sctp/sctp.h index 9c6414f..7fdf298 100644 --- a/include/net/sctp/sctp.h +++ b/include/net/sctp/sctp.h @@ -272,6 +272,18 @@ struct sctp_mib { unsigned long mibs[SCTP_MIB_MAX]; }; +/* helper function to track stats about max rto and related transport */ +static inline void sctp_max_rto(struct sctp_association *asoc, + struct sctp_transport *trans) +{ + if (asoc->stats.max_obs_rto < (__u64)trans->rto) { + asoc->stats.max_obs_rto = trans->rto; + memset(&asoc->stats.obs_rto_ipaddr, 0, + sizeof(struct sockaddr_storage)); + memcpy(&asoc->stats.obs_rto_ipaddr, &trans->ipaddr, + trans->af_specific->sockaddr_len); + } +} /* Print debugging messages. */ #if SCTP_DEBUG diff --git a/include/net/sctp/structs.h b/include/net/sctp/structs.h index 2b2f61d..c252101 100644 --- a/include/net/sctp/structs.h +++ b/include/net/sctp/structs.h @@ -1312,6 +1312,40 @@ struct sctp_inithdr_host { __u32 initial_tsn; }; +/* SCTP_GET_ASSOC_STATS counters */ +struct sctp_priv_assoc_stats { + /* Maximum observed rto in the association during subsequent + * observations. Value is set to 0 if no RTO measurement took place + * The transport where the max_rto was observed is returned in + * obs_rto_ipaddr + */ + struct sockaddr_storage obs_rto_ipaddr; + __u64 max_obs_rto; + /* Total In and Out SACKs received and sent */ + __u64 isacks; + __u64 osacks; + /* Total In and Out packets received and sent */ + __u64 opackets; + __u64 ipackets; + /* Total retransmitted chunks */ + __u64 rtxchunks; + /* TSN received > next expected */ + __u64 outofseqtsns; + /* Duplicate Chunks received */ + __u64 idupchunks; + /* Gap Ack Blocks received */ + __u64 gapcnt; + /* Unordered data chunks sent and received */ + __u64 ouodchunks; + __u64 iuodchunks; + /* Ordered data chunks sent and received */ + __u64 oodchunks; + __u64 iodchunks; + /* Control chunks sent and received */ + __u64 octrlchunks; + __u64 ictrlchunks; +}; + /* RFC2960 * * 12. Recommended Transmission Control Block (TCB) Parameters @@ -1830,6 +1864,8 @@ struct sctp_association { __u8 need_ecne:1, /* Need to send an ECNE Chunk? */ temp:1; /* Is it a temporary association? */ + + struct sctp_priv_assoc_stats stats; }; diff --git a/include/net/sctp/user.h b/include/net/sctp/user.h index 1b02d7a..9a0ae09 100644 --- a/include/net/sctp/user.h +++ b/include/net/sctp/user.h @@ -107,6 +107,7 @@ typedef __s32 sctp_assoc_t; #define SCTP_GET_LOCAL_ADDRS 109 /* Get all local address. */ #define SCTP_SOCKOPT_CONNECTX 110 /* CONNECTX requests. */ #define SCTP_SOCKOPT_CONNECTX3 111 /* CONNECTX requests (updated) */ +#define SCTP_GET_ASSOC_STATS 112 /* Read only */ /* * 5.2.1 SCTP Initiation Structure (SCTP_INIT) @@ -719,6 +720,32 @@ struct sctp_getaddrs { __u8 addrs[0]; /*output, variable size*/ }; +/* A socket user request obtained via SCTP_GET_ASSOC_STATS that retrieves + * association stats. All stats are counts except sas_maxrto and + * sas_obs_rto_ipaddr. maxrto is the max observed rto + transport since + * the last call. Will return 0 when RTO was not update since last call + */ +struct sctp_assoc_stats { + sctp_assoc_t sas_assoc_id; /* Input */ + /* Transport of observed max RTO */ + struct sockaddr_storage sas_obs_rto_ipaddr; + __u64 sas_maxrto; /* Maximum Observed RTO for period */ + __u64 sas_isacks; /* SACKs received */ + __u64 sas_osacks; /* SACKs sent */ + __u64 sas_opackets; /* Packets sent */ + __u64 sas_ipackets; /* Packets received */ + __u64 sas_rtxchunks; /* Retransmitted Chunks */ + __u64 sas_outofseqtsns;/* TSN received > next expected */ + __u64 sas_idupchunks; /* Dups received (ordered+unordered) */ + __u64 sas_gapcnt; /* Gap Acknowledgements Received */ + __u64 sas_ouodchunks; /* Unordered data chunks sent */ + __u64 sas_iuodchunks; /* Unordered data chunks received */ + __u64 sas_oodchunks; /* Ordered data chunks sent */ + __u64 sas_iodchunks; /* Ordered data chunks received */ + __u64 sas_octrlchunks; /* Control chunks sent */ + __u64 sas_ictrlchunks; /* Control chunks received */ +}; + /* These are bit fields for msghdr->msg_flags. See section 5.1. */ /* On user space Linux, these live in <bits/socket.h> as an enum. */ enum sctp_msg_flags { |