Date: Sat, 13 Jun 2015 20:11:02 +0000 (UTC) From: Michael Tuexen <tuexen@FreeBSD.org> To: src-committers@freebsd.org, svn-src-all@freebsd.org, svn-src-head@freebsd.org Subject: svn commit: r284354 - head/usr.bin/sockstat Message-ID: <201506132011.t5DKB2DL064394@svn.freebsd.org>
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Author: tuexen Date: Sat Jun 13 20:11:02 2015 New Revision: 284354 URL: https://svnweb.freebsd.org/changeset/base/284354 Log: Add support for SCTP. MFC after: 3 days Modified: head/usr.bin/sockstat/sockstat.c Modified: head/usr.bin/sockstat/sockstat.c ============================================================================== --- head/usr.bin/sockstat/sockstat.c Sat Jun 13 20:05:20 2015 (r284353) +++ head/usr.bin/sockstat/sockstat.c Sat Jun 13 20:11:02 2015 (r284354) @@ -43,6 +43,7 @@ __FBSDID("$FreeBSD$"); #include <netinet/in.h> #include <netinet/in_pcb.h> +#include <netinet/sctp.h> #include <netinet/tcp.h> #include <netinet/tcp_seq.h> #include <netinet/tcp_var.h> @@ -71,7 +72,7 @@ static int opt_v; /* Verbose mode */ /* * Default protocols to use if no -P was defined. */ -static const char *default_protos[] = {"tcp", "udp", "divert" }; +static const char *default_protos[] = {"sctp", "tcp", "udp", "divert" }; static size_t default_numprotos = sizeof(default_protos) / sizeof(default_protos[0]); @@ -254,6 +255,241 @@ sockaddr(struct sockaddr_storage *sa, in } static void +gather_sctp(void) +{ + struct sock *sock; + struct addr *laddr, *prev_laddr, *faddr, *prev_faddr; + struct xsctp_inpcb *xinpcb; + struct xsctp_tcb *xstcb; + struct xsctp_raddr *xraddr; + struct xsctp_laddr *xladdr; + const char *varname; + size_t len, offset; + char *buf; + int hash, vflag; + int no_stcb, local_all_loopback, foreign_all_loopback; + + vflag = 0; + if (opt_4) + vflag |= INP_IPV4; + if (opt_6) + vflag |= INP_IPV6; + + varname = "net.inet.sctp.assoclist"; + if (sysctlbyname(varname, 0, &len, 0, 0) < 0) { + if (errno != ENOENT) + err(1, "sysctlbyname()"); + return; + } + if ((buf = (char *)malloc(len)) == NULL) { + err(1, "malloc()"); + return; + } + if (sysctlbyname(varname, buf, &len, 0, 0) < 0) { + err(1, "sysctlbyname()"); + free(buf); + return; + } + xinpcb = (struct xsctp_inpcb *)(void *)buf; + offset = sizeof(struct xsctp_inpcb); + while ((offset < len) && (xinpcb->last == 0)) { + if ((sock = calloc(1, sizeof *sock)) == NULL) + err(1, "malloc()"); + sock->socket = xinpcb->socket; + sock->proto = IPPROTO_SCTP; + sock->protoname = "sctp"; + if (xinpcb->flags & SCTP_PCB_FLAGS_BOUND_V6) { + sock->family = AF_INET6; + sock->vflag = INP_IPV6; + } else { + sock->family = AF_INET; + sock->vflag = INP_IPV4; + } + prev_laddr = NULL; + local_all_loopback = 1; + while (offset < len) { + xladdr = (struct xsctp_laddr *)(void *)(buf + offset); + offset += sizeof(struct xsctp_laddr); + if (xladdr->last == 1) + break; + if ((laddr = calloc(1, sizeof(struct addr))) == NULL) + err(1, "malloc()"); + switch (xladdr->address.sa.sa_family) { + case AF_INET: +#define __IN_IS_ADDR_LOOPBACK(pina) \ + ((ntohl((pina)->s_addr) >> IN_CLASSA_NSHIFT) == IN_LOOPBACKNET) + if (!__IN_IS_ADDR_LOOPBACK(&xladdr->address.sin.sin_addr)) + local_all_loopback = 0; +#undef __IN_IS_ADDR_LOOPBACK + sockaddr(&laddr->address, + AF_INET, + &xladdr->address.sin.sin_addr, + htons(xinpcb->local_port)); + break; + case AF_INET6: + if (!IN6_IS_ADDR_LOOPBACK(&xladdr->address.sin6.sin6_addr)) + local_all_loopback = 0; + sockaddr(&laddr->address, + AF_INET6, + &xladdr->address.sin6.sin6_addr, + htons(xinpcb->local_port)); + break; + default: + errx(1, "adress family %d not supported", + xladdr->address.sa.sa_family); + } + laddr->next = NULL; + if (prev_laddr == NULL) + sock->laddr = laddr; + else + prev_laddr->next = laddr; + prev_laddr = laddr; + } + if (sock->laddr == NULL) { + if ((sock->laddr = calloc(1, sizeof(struct addr))) == NULL) + err(1, "malloc()"); + sock->laddr->address.ss_family = sock->family; + if (sock->family == AF_INET) + sock->laddr->address.ss_len = sizeof(struct sockaddr_in); + else + sock->laddr->address.ss_len = sizeof(struct sockaddr_in); + local_all_loopback = 0; + } + if ((sock->faddr = calloc(1, sizeof(struct addr))) == NULL) + err(1, "malloc()"); + sock->faddr->address.ss_family = sock->family; + if (sock->family == AF_INET) + sock->faddr->address.ss_len = sizeof(struct sockaddr_in); + else + sock->faddr->address.ss_len = sizeof(struct sockaddr_in); + no_stcb = 1; + while (offset < len) { + xstcb = (struct xsctp_tcb *)(void *)(buf + offset); + offset += sizeof(struct xsctp_tcb); + if (no_stcb && + opt_l && + (!opt_L || !local_all_loopback) && + ((xinpcb->flags & SCTP_PCB_FLAGS_UDPTYPE) || + (xstcb->last == 1))) { + hash = (int)((uintptr_t)sock->socket % HASHSIZE); + sock->next = sockhash[hash]; + sockhash[hash] = sock; + } + if (xstcb->last == 1) + break; + no_stcb = 0; + if (opt_c) { + if ((sock = calloc(1, sizeof *sock)) == NULL) + err(1, "malloc()"); + sock->socket = xinpcb->socket; + sock->proto = IPPROTO_SCTP; + sock->protoname = "sctp"; + if (xinpcb->flags & SCTP_PCB_FLAGS_BOUND_V6) { + sock->family = AF_INET6; + sock->vflag = INP_IPV6; + } else { + sock->family = AF_INET; + sock->vflag = INP_IPV4; + } + } + prev_laddr = NULL; + local_all_loopback = 1; + while (offset < len) { + xladdr = (struct xsctp_laddr *)(void *)(buf + offset); + offset += sizeof(struct xsctp_laddr); + if (xladdr->last == 1) + break; + if (!opt_c) + continue; + if ((laddr = calloc(1, sizeof(struct addr))) == NULL) + err(1, "malloc()"); + switch (xladdr->address.sa.sa_family) { + case AF_INET: +#define __IN_IS_ADDR_LOOPBACK(pina) \ + ((ntohl((pina)->s_addr) >> IN_CLASSA_NSHIFT) == IN_LOOPBACKNET) + if (!__IN_IS_ADDR_LOOPBACK(&xladdr->address.sin.sin_addr)) + local_all_loopback = 0; +#undef __IN_IS_ADDR_LOOPBACK + sockaddr(&laddr->address, + AF_INET, + &xladdr->address.sin.sin_addr, + htons(xstcb->local_port)); + break; + case AF_INET6: + if (!IN6_IS_ADDR_LOOPBACK(&xladdr->address.sin6.sin6_addr)) + local_all_loopback = 0; + sockaddr(&laddr->address, + AF_INET6, + &xladdr->address.sin6.sin6_addr, + htons(xstcb->local_port)); + break; + default: + errx(1, "adress family %d not supported", + xladdr->address.sa.sa_family); + } + laddr->next = NULL; + if (prev_laddr == NULL) + sock->laddr = laddr; + else + prev_laddr->next = laddr; + prev_laddr = laddr; + } + prev_faddr = NULL; + foreign_all_loopback = 1; + while (offset < len) { + xraddr = (struct xsctp_raddr *)(void *)(buf + offset); + offset += sizeof(struct xsctp_raddr); + if (xraddr->last == 1) + break; + if (!opt_c) + continue; + if ((faddr = calloc(1, sizeof(struct addr))) == NULL) + err(1, "malloc()"); + switch (xraddr->address.sa.sa_family) { + case AF_INET: +#define __IN_IS_ADDR_LOOPBACK(pina) \ + ((ntohl((pina)->s_addr) >> IN_CLASSA_NSHIFT) == IN_LOOPBACKNET) + if (!__IN_IS_ADDR_LOOPBACK(&xraddr->address.sin.sin_addr)) + foreign_all_loopback = 0; +#undef __IN_IS_ADDR_LOOPBACK + sockaddr(&faddr->address, + AF_INET, + &xraddr->address.sin.sin_addr, + htons(xstcb->remote_port)); + break; + case AF_INET6: + if (!IN6_IS_ADDR_LOOPBACK(&xraddr->address.sin6.sin6_addr)) + foreign_all_loopback = 0; + sockaddr(&faddr->address, + AF_INET6, + &xraddr->address.sin6.sin6_addr, + htons(xstcb->remote_port)); + break; + default: + errx(1, "adress family %d not supported", + xraddr->address.sa.sa_family); + } + faddr->next = NULL; + if (prev_faddr == NULL) + sock->faddr = faddr; + else + prev_faddr->next = faddr; + prev_faddr = faddr; + } + if (opt_c && + (!opt_L || !(local_all_loopback || foreign_all_loopback))) { + hash = (int)((uintptr_t)sock->socket % HASHSIZE); + sock->next = sockhash[hash]; + sockhash[hash] = sock; + } + } + xinpcb = (struct xsctp_inpcb *)(void *)(buf + offset); + offset += sizeof(struct xsctp_inpcb); + } + free(buf); +} + +static void gather_inet(int proto) { struct xinpgen *xig, *exig; @@ -845,7 +1081,10 @@ main(int argc, char *argv[]) if (opt_4 || opt_6) { for (i = 0; i < protos_defined; i++) - gather_inet(protos[i]); + if (protos[i] == IPPROTO_SCTP) + gather_sctp(); + else + gather_inet(protos[i]); } if (opt_u || (protos_defined == -1 && !opt_4 && !opt_6)) {
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