/* * netsniff-ng - the packet sniffing beast * Copyright 2011 Daniel Borkmann. * Subject to the GPL, version 2. */ #include #include #include #include #include #include #include #include #include #include #include #include #include #include "xmalloc.h" #include "xutils.h" #include "die.h" extern int print_stun_probe(char *server, int sport, int tport); #define BINDING_REQUEST 0x0001 #define BINDING_RESPONSE 0x0101 #define MAPPED_ADDRESS 0x0001 #define TIMEOUT 5000 #define REQUEST_LEN 20 #define ID_COOKIE_FIELD htonl(((int) 'a' << 24) + \ ((int) 'c' << 16) + \ ((int) 'd' << 8) + \ (int) 'c') struct stun_header { uint16_t type; uint16_t len; uint32_t magic_cookie; uint32_t transid[3]; }; struct stun_attrib { uint16_t type; uint16_t len; uint8_t *value; }; struct stun_mapped_addr { uint8_t none; uint8_t family; uint16_t port; uint32_t ip; }; static int stun_test(const char *server_ip, int server_port, int tun_port) { int ret, sock; uint8_t pkt[256]; uint8_t rpkt[256]; size_t len, off, max; struct in_addr in; struct timeval timeout; struct stun_header *hdr, *rhdr; struct stun_attrib *attr; struct stun_mapped_addr *addr; struct sockaddr_in saddr, daddr; fd_set fdset; if (!server_ip) return -EINVAL; sock = socket(PF_INET, SOCK_DGRAM, IPPROTO_UDP); if (sock < 0) panic("Cannot obtain socket!\n"); set_reuseaddr(sock); saddr.sin_family = PF_INET; saddr.sin_port = htons(tun_port); saddr.sin_addr.s_addr = INADDR_ANY; ret = bind(sock, (struct sockaddr *) &saddr, sizeof(saddr)); if (ret) panic("Cannot bind udp socket!\n"); len = REQUEST_LEN; hdr = (struct stun_header *) pkt; hdr->type = htons(BINDING_REQUEST); hdr->len = 0; hdr->magic_cookie = ID_COOKIE_FIELD; hdr->transid[0] = htonl(rand()); hdr->transid[1] = htonl(rand()); hdr->transid[2] = htonl(rand()); daddr.sin_family = PF_INET; daddr.sin_port = htons(server_port); daddr.sin_addr.s_addr = inet_addr(server_ip); ret = sendto(sock, pkt, len, 0, (struct sockaddr *) &daddr, sizeof(daddr)); if (ret != len) { printf("Error sending request (%s)!\n", strerror(errno)); return -EIO; } timeout.tv_sec = TIMEOUT / 1000; timeout.tv_usec = (TIMEOUT % 1000) * 1000; FD_ZERO(&fdset); FD_SET(sock, &fdset); ret = select(sock + 1, &fdset, NULL, NULL, &timeout); if (ret <= 0) { printf("STUN server timeout!\n"); return -EIO; } memset(rpkt, 0, sizeof(rpkt)); len = read(sock, rpkt, sizeof(rpkt)); close(sock); if (len < REQUEST_LEN) { printf("Bad STUN response (%s)!\n", strerror(errno)); return -EIO; } rhdr = (struct stun_header *) rpkt; if (ntohs(rhdr->type) != BINDING_RESPONSE) { printf("Wrong STUN response type!\n"); return -EIO; } if (rhdr->len == 0) { printf("No attributes in STUN response!\n"); return -EIO; } if (rhdr->magic_cookie != hdr->magic_cookie || rhdr->transid[0] != hdr->transid[0] || rhdr->transid[1] != hdr->transid[1] || rhdr->transid[2] != hdr->transid[2]) { printf("Got wrong STUN transaction id!\n"); return -EIO; } off = REQUEST_LEN; max = ntohs(rhdr->len) + REQUEST_LEN; while (off + 8 < max) { attr = (struct stun_attrib *) (rpkt + off); if (ntohs(attr->type) != MAPPED_ADDRESS) goto next; addr = (struct stun_mapped_addr *) (rpkt + off + 4); if (addr->family != 0x1) break; in.s_addr = addr->ip; printf("Public mapping %s:%u!\n", inet_ntoa(in), ntohs(addr->port)); break; next: off += 4; off += ntohs(attr->len); } return 0; } int print_stun_probe(char *server, int sport, int tport) { char *address; struct hostent *hp; printf("STUN on %s:%u\n", server, sport); srand(time(NULL)); hp = gethostbyname(server); if (!hp) return -EIO; address = inet_ntoa(*(struct in_addr *) hp->h_addr_list[0]); return stun_test(address, sport, tport); } ignorews' onchange='this.form.submit();'>mode:
authorDavid S. Miller <davem@davemloft.net>2017-01-30 15:55:48 -0500
committerDavid S. Miller <davem@davemloft.net>2017-01-30 15:56:40 -0500
commit1930b60352e7e195f55b27cde15d2a8f43342a8b (patch)
treeec3f66cd8d8110bf7b4f61e0446bdea505915db9 /sound/pci/au88x0/Makefile
parent4be9993493bc7ee3fdf950a83bc050a3e6cf2a45 (diff)
parentec960de61503ef349588dccfa3ae02efabcc2762 (diff)
Merge branch 'dsa-port-mirroring'
Florian Fainelli says: ==================== net: dsa: Port mirroring support This patch series adds support for port mirroring in the two Broadcom switch drivers. The major part of the functional are actually with the plumbing between tc and the drivers. Changes in v5: - Added Jiri's Reviewed-by tag to first patch - rebase against latest net-next/master after bcm_sf2 CFP series Changes in v4: - rebased against latest net-next/master after Vivien's changes Changes in v3: - removed multiline comments from added structures - simplify error handling in dsa_slave_add_cls_matchall Changes in v2: - fixed filter removal logic to disable the ingress or egress mirroring when there are no longer ports being monitored in ingress or egress - removed a stray list_head in dsa_port structure that is not used Tested using the two iproute2 examples: tc qdisc add dev eth1 handle ffff: ingress tc filter add dev eth1 parent ffff: \ matchall skip_sw \ action mirred egress mirror \ dev eth2 tc qdisc add dev eth1 handle 1: root prio tc filter add dev eth1 parent 1: \ matchall skip_sw \ action mirred egress mirror \ dev eth2 ==================== Signed-off-by: David S. Miller <davem@davemloft.net>
Diffstat (limited to 'sound/pci/au88x0/Makefile')