From bd36af21717b138c91724128e592b3fc587bb07a Mon Sep 17 00:00:00 2001 From: Micael Karlberg Date: Fri, 20 Jul 2018 10:10:28 +0200 Subject: [socket-nif] Add support for socket (level sctp) option initmsg Added support for the SCTP option INITMSG. OTP-14831 --- erts/emulator/nifs/common/socket_nif.c | 198 ++++++++++++++++++++++++++++++--- 1 file changed, 183 insertions(+), 15 deletions(-) (limited to 'erts/emulator') diff --git a/erts/emulator/nifs/common/socket_nif.c b/erts/emulator/nifs/common/socket_nif.c index e84eb7aa8e..e8e1df0842 100644 --- a/erts/emulator/nifs/common/socket_nif.c +++ b/erts/emulator/nifs/common/socket_nif.c @@ -263,43 +263,43 @@ * #if defined(__GNUC__) && defined(HAVE_SCTP_BINDX) -static typeof(sctp_bindx) *p_sctp_bindx = NULL; +static typeof(sctp_bindx) *esock_sctp_bindx = NULL; #else -static int (*p_sctp_bindx) +static int (*esock_sctp_bindx) (int sd, struct sockaddr *addrs, int addrcnt, int flags) = NULL; #endif #if defined(__GNUC__) && defined(HAVE_SCTP_PEELOFF) -static typeof(sctp_peeloff) *p_sctp_peeloff = NULL; +static typeof(sctp_peeloff) *esock_sctp_peeloff = NULL; #else -static int (*p_sctp_peeloff) +static int (*esock_sctp_peeloff) (int sd, sctp_assoc_t assoc_id) = NULL; #endif #if defined(__GNUC__) && defined(HAVE_SCTP_GETLADDRS) -static typeof(sctp_getladdrs) *p_sctp_getladdrs = NULL; +static typeof(sctp_getladdrs) *esock_sctp_getladdrs = NULL; #else -static int (*p_sctp_getladdrs) +static int (*esock_sctp_getladdrs) (int sd, sctp_assoc_t assoc_id, struct sockaddr **ss) = NULL; #endif #if defined(__GNUC__) && defined(HAVE_SCTP_FREELADDRS) -static typeof(sctp_freeladdrs) *p_sctp_freeladdrs = NULL; +static typeof(sctp_freeladdrs) *esock_sctp_freeladdrs = NULL; #else -static void (*p_sctp_freeladdrs)(struct sockaddr *addrs) = NULL; +static void (*esock_sctp_freeladdrs)(struct sockaddr *addrs) = NULL; #endif #if defined(__GNUC__) && defined(HAVE_SCTP_GETPADDRS) -static typeof(sctp_getpaddrs) *p_sctp_getpaddrs = NULL; +static typeof(sctp_getpaddrs) *esock_sctp_getpaddrs = NULL; #else -static int (*p_sctp_getpaddrs) +static int (*esock_sctp_getpaddrs) (int sd, sctp_assoc_t assoc_id, struct sockaddr **ss) = NULL; #endif #if defined(__GNUC__) && defined(HAVE_SCTP_FREEPADDRS) -static typeof(sctp_freepaddrs) *p_sctp_freepaddrs = NULL; +static typeof(sctp_freepaddrs) *esock_sctp_freepaddrs = NULL; #else -static void (*p_sctp_freepaddrs)(struct sockaddr *addrs) = NULL; +static void (*esock_sctp_freepaddrs)(struct sockaddr *addrs) = NULL; #endif */ @@ -546,6 +546,7 @@ typedef union { #define SOCKET_OPT_SCTP_AUTOCLOSE 8 #define SOCKET_OPT_SCTP_DISABLE_FRAGMENTS 12 #define SOCKET_OPT_SCTP_EVENTS 14 +#define SOCKET_OPT_SCTP_INITMSG 18 #define SOCKET_OPT_SCTP_MAXSEG 21 #define SOCKET_OPT_SCTP_NODELAY 23 #define SOCKET_OPT_SCTP_RTOINFO 29 @@ -1235,6 +1236,11 @@ static ERL_NIF_TERM nsetopt_lvl_sctp_events(ErlNifEnv* env, SocketDescriptor* descP, ERL_NIF_TERM eVal); #endif +#if defined(SCTP_INITMSG) +static ERL_NIF_TERM nsetopt_lvl_sctp_initmsg(ErlNifEnv* env, + SocketDescriptor* descP, + ERL_NIF_TERM eVal); +#endif #if defined(SCTP_MAXSEG) static ERL_NIF_TERM nsetopt_lvl_sctp_maxseg(ErlNifEnv* env, SocketDescriptor* descP, @@ -1469,6 +1475,10 @@ static ERL_NIF_TERM ngetopt_lvl_sctp_disable_fragments(ErlNifEnv* env, static ERL_NIF_TERM ngetopt_lvl_sctp_maxseg(ErlNifEnv* env, SocketDescriptor* descP); #endif +#if defined(SCTP_INITMSG) +static ERL_NIF_TERM ngetopt_lvl_sctp_initmsg(ErlNifEnv* env, + SocketDescriptor* descP); +#endif #if defined(SCTP_NODELAY) static ERL_NIF_TERM ngetopt_lvl_sctp_nodelay(ErlNifEnv* env, SocketDescriptor* descP); @@ -1830,6 +1840,9 @@ static char str_interface[] = "interface"; static char str_local_rwnd[] = "local_rwnd"; // static char str_loopback[] = "loopback"; static char str_max[] = "max"; +static char str_max_attempts[] = "max_attempts"; +static char str_max_init_timeo[] = "max_init_timeo"; +static char str_max_instreams[] = "max_instreams"; static char str_max_rxt[] = "max_rxt"; static char str_min[] = "min"; static char str_multiaddr[] = "multiaddr"; @@ -1837,6 +1850,7 @@ static char str_nif_abort[] = "nif_abort"; static char str_num_dlocal[] = "num_domain_local"; static char str_num_dinet[] = "num_domain_inet"; static char str_num_dinet6[] = "num_domain_inet6"; +static char str_num_outstreams[] = "num_outstreams"; static char str_num_peer_dests[] = "num_peer_dests"; static char str_num_pip[] = "num_proto_ip"; static char str_num_psctp[] = "num_proto_sctp"; @@ -1935,6 +1949,9 @@ static ERL_NIF_TERM atom_initial; static ERL_NIF_TERM atom_interface; static ERL_NIF_TERM atom_local_rwnd; static ERL_NIF_TERM atom_max; +static ERL_NIF_TERM atom_max_attempts; +static ERL_NIF_TERM atom_max_init_timeo; +static ERL_NIF_TERM atom_max_instreams; static ERL_NIF_TERM atom_max_rxt; static ERL_NIF_TERM atom_min; static ERL_NIF_TERM atom_multiaddr; @@ -1942,6 +1959,7 @@ static ERL_NIF_TERM atom_nif_abort; static ERL_NIF_TERM atom_num_dinet; static ERL_NIF_TERM atom_num_dinet6; static ERL_NIF_TERM atom_num_dlocal; +static ERL_NIF_TERM atom_num_outstreams; static ERL_NIF_TERM atom_num_peer_dests; static ERL_NIF_TERM atom_num_pip; static ERL_NIF_TERM atom_num_psctp; @@ -5585,6 +5603,12 @@ ERL_NIF_TERM nsetopt_lvl_sctp(ErlNifEnv* env, break; #endif +#if defined(SCTP_INITMSG) + case SOCKET_OPT_SCTP_INITMSG: + result = nsetopt_lvl_sctp_initmsg(env, descP, eVal); + break; +#endif + #if defined(SCTP_MAXSEG) case SOCKET_OPT_SCTP_MAXSEG: result = nsetopt_lvl_sctp_maxseg(env, descP, eVal); @@ -5745,8 +5769,8 @@ ERL_NIF_TERM nsetopt_lvl_sctp_disable_fragments(ErlNifEnv* env, #if defined(SCTP_EVENTS) static ERL_NIF_TERM nsetopt_lvl_sctp_events(ErlNifEnv* env, - SocketDescriptor* descP, - ERL_NIF_TERM eVal) + SocketDescriptor* descP, + ERL_NIF_TERM eVal) { ERL_NIF_TERM result; ERL_NIF_TERM eDataIn, eAssoc, eAddr, eSndFailure; @@ -5838,6 +5862,90 @@ ERL_NIF_TERM nsetopt_lvl_sctp_events(ErlNifEnv* env, #endif +/* nsetopt_lvl_sctp_initmsg - Level SCTP INITMSG option + */ +#if defined(SCTP_INITMSG) +static +ERL_NIF_TERM nsetopt_lvl_sctp_initmsg(ErlNifEnv* env, + SocketDescriptor* descP, + ERL_NIF_TERM eVal) +{ + ERL_NIF_TERM result; + ERL_NIF_TERM eNumOut, eMaxIn, eMaxAttempts, eMaxInitTO; + struct sctp_initmsg initMsg; + int res; + size_t sz; + unsigned int tmp; + + SSDBG( descP, + ("SOCKET", "nsetopt_lvl_sctp_initmsg -> entry with" + "\r\n eVal: %T" + "\r\n", eVal) ); + + // It must be a map + if (!IS_MAP(env, eVal)) + return esock_make_error(env, esock_atom_einval); + + // It must have atleast ten attributes + if (!enif_get_map_size(env, eVal, &sz) || (sz < 4)) + return esock_make_error(env, esock_atom_einval); + + SSDBG( descP, + ("SOCKET", "nsetopt_lvl_sctp_initmsg -> extract attributes\r\n") ); + + if (!GET_MAP_VAL(env, eVal, atom_num_outstreams, &eNumOut)) + return esock_make_error(env, esock_atom_einval); + + if (!GET_MAP_VAL(env, eVal, atom_max_instreams, &eMaxIn)) + return esock_make_error(env, esock_atom_einval); + + if (!GET_MAP_VAL(env, eVal, atom_max_attempts, &eMaxAttempts)) + return esock_make_error(env, esock_atom_einval); + + if (!GET_MAP_VAL(env, eVal, atom_max_init_timeo, &eMaxInitTO)) + return esock_make_error(env, esock_atom_einval); + + SSDBG( descP, + ("SOCKET", "nsetopt_lvl_sctp_initmsg -> decode attributes\r\n") ); + + if (!GET_UINT(env, eNumOut, &tmp)) + return esock_make_error(env, esock_atom_einval); + initMsg.sinit_num_ostreams = (uint16_t) tmp; + + if (!GET_UINT(env, eMaxIn, &tmp)) + return esock_make_error(env, esock_atom_einval); + initMsg.sinit_max_instreams = (uint16_t) tmp; + + if (!GET_UINT(env, eMaxAttempts, &tmp)) + return esock_make_error(env, esock_atom_einval); + initMsg.sinit_max_attempts = (uint16_t) tmp; + + if (!GET_UINT(env, eMaxInitTO, &tmp)) + return esock_make_error(env, esock_atom_einval); + initMsg.sinit_max_init_timeo = (uint16_t) tmp; + + SSDBG( descP, + ("SOCKET", "nsetopt_lvl_sctp_initmsg -> set initmsg option\r\n") ); + + res = socket_setopt(descP->sock, IPPROTO_SCTP, SCTP_INITMSG, + &initMsg, sizeof(initMsg)); + + if (res != 0) + result = esock_make_error_errno(env, sock_errno()); + else + result = esock_atom_ok; + + SSDBG( descP, + ("SOCKET", "nsetopt_lvl_sctp_initmsg -> done with" + "\r\n result: %T" + "\r\n", result) ); + + return result; + +} +#endif + + /* nsetopt_lvl_sctp_maxseg - Level SCTP MAXSEG option */ #if defined(SCTP_MAXSEG) @@ -7614,6 +7722,12 @@ ERL_NIF_TERM ngetopt_lvl_sctp(ErlNifEnv* env, break; #endif +#if defined(SCTP_INITMSG) + case SOCKET_OPT_SCTP_INITMSG: + result = ngetopt_lvl_sctp_initmsg(env, descP); + break; +#endif + #if defined(SCTP_MAXSEG) case SOCKET_OPT_SCTP_MAXSEG: result = ngetopt_lvl_sctp_maxseg(env, descP); @@ -7677,7 +7791,7 @@ ERL_NIF_TERM ngetopt_lvl_sctp_associnfo(ErlNifEnv* env, if (res != 0) { result = esock_make_error_errno(env, sock_errno()); } else { - ERL_NIF_TERM eAssocParams; + ERL_NIF_TERM eAssocParams; ERL_NIF_TERM keys[] = {atom_assoc_id, atom_max_rxt, atom_num_peer_dests, atom_peer_rwnd, atom_local_rwnd, atom_cookie_life}; ERL_NIF_TERM vals[] = {MKUI(env, val.sasoc_assoc_id), @@ -7732,6 +7846,56 @@ ERL_NIF_TERM ngetopt_lvl_sctp_disable_fragments(ErlNifEnv* env, #endif +/* ngetopt_lvl_sctp_initmsg - Level SCTP INITMSG option + * + */ +#if defined(SCTP_INITMSG) +static +ERL_NIF_TERM ngetopt_lvl_sctp_initmsg(ErlNifEnv* env, + SocketDescriptor* descP) +{ + ERL_NIF_TERM result; + struct sctp_initmsg val; + SOCKOPTLEN_T valSz = sizeof(val); + int res; + + SSDBG( descP, ("SOCKET", "ngetopt_lvl_sctp_initmsg -> entry\r\n") ); + + sys_memzero((char*) &val, valSz); + res = sock_getopt(descP->sock, IPPROTO_SCTP, SCTP_INITMSG, &val, &valSz); + + if (res != 0) { + result = esock_make_error_errno(env, sock_errno()); + } else { + ERL_NIF_TERM eInitMsg; + ERL_NIF_TERM keys[] = {atom_num_outstreams, atom_max_instreams, + atom_max_attempts, atom_max_init_timeo}; + ERL_NIF_TERM vals[] = {MKUI(env, val.sinit_num_ostreams), + MKUI(env, val.sinit_max_instreams), + MKUI(env, val.sinit_max_attempts), + MKUI(env, val.sinit_max_init_timeo)}; + unsigned int numKeys = sizeof(keys) / sizeof(ERL_NIF_TERM); + unsigned int numVals = sizeof(vals) / sizeof(ERL_NIF_TERM); + + ESOCK_ASSERT( (numKeys == numVals) ); + + if (!MKMA(env, keys, vals, numKeys, &eInitMsg)) + return esock_make_error(env, esock_atom_einval);; + + result = esock_make_ok2(env, eInitMsg); + } + + SSDBG( descP, + ("SOCKET", "ngetopt_lvl_sctp_initmsg -> done with" + "\r\n res: %d" + "\r\n result: %T" + "\r\n", res, result) ); + + return result; +} +#endif + + /* ngetopt_lvl_sctp_maxseg - Level SCTP MAXSEG option */ #if defined(SCTP_MAXSEG) @@ -10050,6 +10214,9 @@ int on_load(ErlNifEnv* env, void** priv_data, ERL_NIF_TERM load_info) atom_interface = MKA(env, str_interface); atom_local_rwnd = MKA(env, str_local_rwnd); atom_max = MKA(env, str_max); + atom_max_attempts = MKA(env, str_max_attempts); + atom_max_init_timeo = MKA(env, str_max_init_timeo); + atom_max_instreams = MKA(env, str_max_instreams); atom_max_rxt = MKA(env, str_max_rxt); atom_min = MKA(env, str_min); atom_multiaddr = MKA(env, str_multiaddr); @@ -10057,6 +10224,7 @@ int on_load(ErlNifEnv* env, void** priv_data, ERL_NIF_TERM load_info) atom_num_dinet = MKA(env, str_num_dinet); atom_num_dinet6 = MKA(env, str_num_dinet6); atom_num_dlocal = MKA(env, str_num_dlocal); + atom_num_outstreams = MKA(env, str_num_outstreams); atom_num_peer_dests = MKA(env, str_num_peer_dests); atom_num_pip = MKA(env, str_num_pip); atom_num_psctp = MKA(env, str_num_psctp); 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