diff options
Diffstat (limited to 'mcast/common/.svn/text-base/mld_common.c.svn-base')
| -rw-r--r-- | mcast/common/.svn/text-base/mld_common.c.svn-base | 243 |
1 files changed, 0 insertions, 243 deletions
diff --git a/mcast/common/.svn/text-base/mld_common.c.svn-base b/mcast/common/.svn/text-base/mld_common.c.svn-base deleted file mode 100644 index 77e05bd..0000000 --- a/mcast/common/.svn/text-base/mld_common.c.svn-base +++ /dev/null @@ -1,243 +0,0 @@ -/* - * (c) BayCom GmbH, http://www.baycom.de, info@baycom.de - * - * See the COPYING file for copyright information and - * how to reach the author. - * - */ - -#include "headers.h" -struct conf *g_conf=NULL; - -//----------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- -#ifdef DEBUG -struct lookup icmpv6_types[] = { - {ICMP6_DST_UNREACH, "Destination Unreachable"}, - {ICMP6_PACKET_TOO_BIG, "Packet too big"}, - {ICMP6_TIME_EXCEEDED, "Time Exceeded"}, - {ICMP6_PARAM_PROB, "Parameter Problem"}, - {ICMP6_ECHO_REQUEST, "Echo Request"}, - {ICMP6_ECHO_REPLY, "Echo Reply"}, - {ICMP6_MEMBERSHIP_QUERY, "Membership Query"}, - {ICMP6_MEMBERSHIP_REPORT, "Membership Report"}, - {ICMP6_MEMBERSHIP_REDUCTION, "Membership Reduction"}, - {ICMP6_V2_MEMBERSHIP_REPORT, "Membership Report (V2)"}, - {ICMP6_V2_MEMBERSHIP_REPORT_EXP, "Membership Report (V2) - Experimental"}, - {ND_ROUTER_SOLICIT, "ND Router Solicitation"}, - {ND_ROUTER_ADVERT, "ND Router Advertisement"}, - {ND_NEIGHBOR_SOLICIT, "ND Neighbour Solicitation"}, - {ND_NEIGHBOR_ADVERT, "ND Neighbour Advertisement"}, - {ND_REDIRECT, "ND Redirect"}, - {ICMP6_ROUTER_RENUMBERING, "Router Renumbering",}, - {ICMP6_NI_QUERY, "Node Information Query"}, - {ICMP6_NI_REPLY, "Node Information Reply"}, - {MLD_MTRACE_RESP, "Mtrace Response"}, - {MLD_MTRACE, "Mtrace Message"}, - {0, NULL}, -}, icmpv6_codes_unreach[] = { - {ICMP6_DST_UNREACH_NOROUTE, "No route to destination"}, - {ICMP6_DST_UNREACH_ADMIN, "Administratively prohibited"}, - {ICMP6_DST_UNREACH_NOTNEIGHBOR, "Not a neighbor (obsolete)"}, - {ICMP6_DST_UNREACH_BEYONDSCOPE, "Beyond scope of source address"}, - {ICMP6_DST_UNREACH_ADDR, "Address Unreachable"}, - {ICMP6_DST_UNREACH_NOPORT, "Port Unreachable"}, -}, icmpv6_codes_ttl[] = { - - {ICMP6_TIME_EXCEED_TRANSIT, "Time Exceeded during Transit",}, - {ICMP6_TIME_EXCEED_REASSEMBLY, "Time Exceeded during Reassembly"}, -}, icmpv6_codes_param[] = { - - {ICMP6_PARAMPROB_HEADER, "Erroneous Header Field"}, - {ICMP6_PARAMPROB_NEXTHEADER, "Unrecognized Next Header"}, - {ICMP6_PARAMPROB_OPTION, "Unrecognized Option"}, -}, icmpv6_codes_ni[] = { - - {ICMP6_NI_SUCCESS, "Node Information Successful Reply"}, - {ICMP6_NI_REFUSED, "Node Information Request Is Refused"}, - {ICMP6_NI_UNKNOWN, "Unknown Qtype"}, -}, icmpv6_codes_renumber[] = { - - {ICMP6_ROUTER_RENUMBERING_COMMAND, "Router Renumbering Command"}, - {ICMP6_ROUTER_RENUMBERING_RESULT, "Router Renumbering Result"}, - {ICMP6_ROUTER_RENUMBERING_SEQNUM_RESET, "Router Renumbering Sequence Number Reset"}, -}, mld2_grec_types[] = { - - {MLD2_MODE_IS_INCLUDE, "MLDv2 Mode Is Include"}, - {MLD2_MODE_IS_EXCLUDE, "MLDv2 Mode Is Exclude"}, - {MLD2_CHANGE_TO_INCLUDE, "MLDv2 Change to Include"}, - {MLD2_CHANGE_TO_EXCLUDE, "MLDv2 Change to Exclude"}, - {MLD2_ALLOW_NEW_SOURCES, "MLDv2 Allow New Source"}, - {MLD2_BLOCK_OLD_SOURCES, "MLDv2 Block Old Sources"}, -}; -#endif - -//---------------------------------------------------------------------------------------------------------------- -const char *lookup (struct lookup *l, unsigned int num) -{ - unsigned int i; - for (i = 0; l && l[i].desc; i++) { - if (l[i].num != num) - continue; - return l[i].desc; - } - return "Unknown"; -} - -const char *icmpv6_type (unsigned int type) -{ -#ifdef DEBUG - return lookup (icmpv6_types, type); -#else - return ""; -#endif -} - -const char *icmpv6_code (unsigned int type, unsigned int code) -{ -#ifdef DEBUG - struct lookup *l = NULL; - switch (type) { - case ICMP6_DST_UNREACH: - l = icmpv6_codes_unreach; - break; - case ICMP6_TIME_EXCEEDED: - l = icmpv6_codes_ttl; - break; - case ICMP6_PARAM_PROB: - l = icmpv6_codes_param; - break; - case ICMP6_NI_QUERY: - case ICMP6_NI_REPLY: - l = icmpv6_codes_ni; - break; - case ICMP6_ROUTER_RENUMBERING: - l = icmpv6_codes_renumber; - break; - } - return lookup (l, code); -#else - return ""; -#endif -} - -//----------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- -uint16_t inchksum (const void *data, uint32_t length) -{ - register long sum = 0; - register const uint16_t *wrd = (const uint16_t *) data; - register long slen = (long) length; - - while (slen >= 2) { - sum += *wrd++; - slen -= 2; - } - - if (slen > 0) - sum += *(const uint8_t *) wrd; - - while (sum >> 16) - sum = (sum & 0xffff) + (sum >> 16); - - return (uint16_t) sum; -} - -//----------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- -uint16_t ipv6_checksum (const struct ip6_hdr * ip6, uint8_t protocol, const void *data, const uint16_t length) -{ - struct - { - uint16_t length; - uint16_t zero1; - uint8_t zero2; - uint8_t next; - } pseudo; - register uint32_t chksum = 0; - - pseudo.length = htons (length); - pseudo.zero1 = 0; - pseudo.zero2 = 0; - pseudo.next = protocol; - - /* IPv6 Source + Dest */ - chksum = inchksum (&ip6->ip6_src, sizeof (ip6->ip6_src) + sizeof (ip6->ip6_dst)); - chksum += inchksum (&pseudo, sizeof (pseudo)); - chksum += inchksum (data, length); - - /* Wrap in the carries to reduce chksum to 16 bits. */ - chksum = (chksum >> 16) + (chksum & 0xffff); - chksum += (chksum >> 16); - - /* Take ones-complement and replace 0 with 0xFFFF. */ - chksum = (uint16_t) ~ chksum; - if (chksum == 0UL) - chksum = 0xffffUL; - return (uint16_t) chksum; -} - -//----------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- -void sendpacket6 (struct intnode *intn, const struct ip6_hdr *iph, const uint16_t len) -{ - int sent; -#if ! (defined WIN32 || defined APPLE) - struct sockaddr_ll sa; - - memset (&sa, 0, sizeof (sa)); - - sa.sll_family = AF_PACKET; - sa.sll_protocol = htons (ETH_P_IPV6); - sa.sll_ifindex = intn->ifindex; - sa.sll_hatype = intn->hwaddr.sa_family; - sa.sll_pkttype = 0; - sa.sll_halen = 6; - - /* - * Construct a Ethernet MAC address from the IPv6 destination multicast address. - * Per RFC2464 - */ - sa.sll_addr[0] = 0x33; - sa.sll_addr[1] = 0x33; - sa.sll_addr[2] = iph->ip6_dst.s6_addr[12]; - sa.sll_addr[3] = iph->ip6_dst.s6_addr[13]; - sa.sll_addr[4] = iph->ip6_dst.s6_addr[14]; - sa.sll_addr[5] = iph->ip6_dst.s6_addr[15]; - - /* Send the packet */ - errno = 0; - -#else -// info("Send on Interface %s@%d len:%d\n",intn->name, intn->ifindex, len); - struct sockaddr_in6 sa; - memset (&sa, 0, sizeof (sa)); - - sa.sin6_family = AF_INET6; - sa.sin6_addr = iph->ip6_dst; -#endif -#ifdef APPLE - unsigned char *x=(unsigned char *)iph; - sent = sendto (g_conf->rawsocket, (_SOTYPE)x+40, len-40, 0, (struct sockaddr *) &sa, sizeof (sa)); -#else - sent = sendto (g_conf->rawsocket, (_SOTYPE)iph, len, 0, (struct sockaddr *) &sa, sizeof (sa)); -#endif - if (sent < 0) { - /* - * Remove the device if it doesn't exist anymore, - * can happen with dynamic tunnels etc - */ - if (errno == ENXIO) { - warn ("Cannot send %u bytes on interface %s received ENXIO, interface %u no longer usable\n", len, intn->name, intn->ifindex); - /* Destroy the interface itself */ - int_destroy (intn); - } else - warn ("Cannot send %u bytes on interface %s (%d) failed with a mtu of %u: %s (errno %d)\n", len, intn->name, intn->ifindex, intn->mtu, strerror (errno), errno); - return; - } - - /* Update the global statistics */ - g_conf->stat_packets_sent++; - g_conf->stat_bytes_sent += len; - - /* Update interface statistics */ - intn->stat_bytes_sent += len; - intn->stat_packets_sent++; - return; -} |