diff options
Diffstat (limited to 'net-misc/dhcp/files/dhcp-4.2.2-lpf-ib.patch')
| -rw-r--r-- | net-misc/dhcp/files/dhcp-4.2.2-lpf-ib.patch | 538 |
1 files changed, 538 insertions, 0 deletions
diff --git a/net-misc/dhcp/files/dhcp-4.2.2-lpf-ib.patch b/net-misc/dhcp/files/dhcp-4.2.2-lpf-ib.patch new file mode 100644 index 000000000..4034028b8 --- /dev/null +++ b/net-misc/dhcp/files/dhcp-4.2.2-lpf-ib.patch @@ -0,0 +1,538 @@ +diff -up dhcp-4.2.2/client/dhclient.c.lpf-ib dhcp-4.2.2/client/dhclient.c +--- dhcp-4.2.2/client/dhclient.c.lpf-ib 2011-09-19 11:24:08.693775799 +0200 ++++ dhcp-4.2.2/client/dhclient.c 2011-09-19 11:24:08.703775541 +0200 +@@ -113,6 +113,8 @@ static int check_domain_name_list(const + static int check_option_values(struct universe *universe, unsigned int opt, + const char *ptr, size_t len); + ++static void setup_ib_interface(struct interface_info *ip); ++ + int + main(int argc, char **argv) { + int fd; +@@ -919,6 +921,14 @@ main(int argc, char **argv) { + } + srandom(seed + cur_time + (unsigned)getpid()); + ++ /* Setup specific Infiniband options */ ++ for (ip = interfaces; ip; ip = ip->next) { ++ if (ip->client && ++ (ip->hw_address.hbuf[0] == HTYPE_INFINIBAND)) { ++ setup_ib_interface(ip); ++ } ++ } ++ + /* Start a configuration state machine for each interface. */ + #ifdef DHCPv6 + if (local_family == AF_INET6) { +@@ -1195,6 +1205,29 @@ int find_subnet (struct subnet **sp, + return 0; + } + ++static void setup_ib_interface(struct interface_info *ip) ++{ ++ struct group *g; ++ ++ /* Set the broadcast flag */ ++ ip->client->config->bootp_broadcast_always = 1; ++ ++ /* ++ * Find out if a dhcp-client-identifier option was specified either ++ * in the config file or on the command line ++ */ ++ for (g = ip->client->config->on_transmission; g != NULL; g = g->next) { ++ if ((g->statements != NULL) && ++ (strcmp(g->statements->data.option->option->name, ++ "dhcp-client-identifier") == 0)) { ++ return; ++ } ++ } ++ ++ /* No client ID specified */ ++ log_fatal("dhcp-client-identifier must be specified for InfiniBand"); ++} ++ + /* Individual States: + * + * Each routine is called from the dhclient_state_machine() in one of +diff -up dhcp-4.2.2/common/bpf.c.lpf-ib dhcp-4.2.2/common/bpf.c +--- dhcp-4.2.2/common/bpf.c.lpf-ib 2011-09-19 11:24:08.694775773 +0200 ++++ dhcp-4.2.2/common/bpf.c 2011-09-19 11:24:08.704775516 +0200 +@@ -198,11 +198,44 @@ struct bpf_insn dhcp_bpf_filter [] = { + BPF_STMT(BPF_RET+BPF_K, 0), + }; + ++/* Packet filter program for DHCP over Infiniband. ++ * ++ * XXX ++ * Changes to the filter program may require changes to the constant offsets ++ * used in lpf_gen_filter_setup to patch the port in the BPF program! ++ * XXX ++ */ ++struct bpf_insn dhcp_ib_bpf_filter [] = { ++ /* Packet filter for Infiniband */ ++ /* Make sure it's a UDP packet... */ ++ BPF_STMT(BPF_LD + BPF_B + BPF_ABS, 9), ++ BPF_JUMP(BPF_JMP + BPF_JEQ + BPF_K, IPPROTO_UDP, 0, 6), ++ ++ /* Make sure this isn't a fragment... */ ++ BPF_STMT(BPF_LD + BPF_H + BPF_ABS, 6), ++ BPF_JUMP(BPF_JMP + BPF_JSET + BPF_K, 0x1fff, 4, 0), ++ ++ /* Get the IP header length... */ ++ BPF_STMT(BPF_LDX + BPF_B + BPF_MSH, 0), ++ ++ /* Make sure it's to the right port... */ ++ BPF_STMT(BPF_LD + BPF_H + BPF_IND, 2), ++ BPF_JUMP(BPF_JMP + BPF_JEQ + BPF_K, 67, 0, 1), ++ ++ /* If we passed all the tests, ask for the whole packet. */ ++ BPF_STMT(BPF_RET + BPF_K, (u_int)-1), ++ ++ /* Otherwise, drop it. */ ++ BPF_STMT(BPF_RET + BPF_K, 0), ++}; ++ + #if defined (DEC_FDDI) + struct bpf_insn *bpf_fddi_filter; + #endif + + int dhcp_bpf_filter_len = sizeof dhcp_bpf_filter / sizeof (struct bpf_insn); ++int dhcp_ib_bpf_filter_len = sizeof dhcp_ib_bpf_filter / sizeof (struct bpf_insn); ++ + #if defined (HAVE_TR_SUPPORT) + struct bpf_insn dhcp_bpf_tr_filter [] = { + /* accept all token ring packets due to variable length header */ +diff -up dhcp-4.2.2/common/lpf.c.lpf-ib dhcp-4.2.2/common/lpf.c +--- dhcp-4.2.2/common/lpf.c.lpf-ib 2011-09-19 11:24:08.694775773 +0200 ++++ dhcp-4.2.2/common/lpf.c 2011-09-19 11:26:15.107109935 +0200 +@@ -42,6 +42,7 @@ + #include "includes/netinet/udp.h" + #include "includes/netinet/if_ether.h" + #include <net/if.h> ++#include <ifaddrs.h> + + #ifndef PACKET_AUXDATA + #define PACKET_AUXDATA 8 +@@ -59,6 +60,15 @@ struct tpacket_auxdata + /* Reinitializes the specified interface after an address change. This + is not required for packet-filter APIs. */ + ++/* Default broadcast address for IPoIB */ ++static unsigned char default_ib_bcast_addr[20] = { ++ 0x00, 0xff, 0xff, 0xff, ++ 0xff, 0x12, 0x40, 0x1b, ++ 0x00, 0x00, 0x00, 0x00, ++ 0x00, 0x00, 0x00, 0x00, ++ 0xff, 0xff, 0xff, 0xff ++}; ++ + #ifdef USE_LPF_SEND + void if_reinitialize_send (info) + struct interface_info *info; +@@ -86,10 +96,21 @@ int if_register_lpf (info) + struct sockaddr common; + } sa; + struct ifreq ifr; ++ int type; ++ int protocol; + + /* Make an LPF socket. */ +- if ((sock = socket(PF_PACKET, SOCK_RAW, +- htons((short)ETH_P_ALL))) < 0) { ++ get_hw_addr(info); ++ ++ if (info->hw_address.hbuf[0] == HTYPE_INFINIBAND) { ++ type = SOCK_DGRAM; ++ protocol = ETHERTYPE_IP; ++ } else { ++ type = SOCK_RAW; ++ protocol = ETH_P_ALL; ++ } ++ ++ if ((sock = socket(PF_PACKET, type, htons((short)protocol))) < 0) { + if (errno == ENOPROTOOPT || errno == EPROTONOSUPPORT || + errno == ESOCKTNOSUPPORT || errno == EPFNOSUPPORT || + errno == EAFNOSUPPORT || errno == EINVAL) { +@@ -112,6 +133,7 @@ int if_register_lpf (info) + /* Bind to the interface name */ + memset (&sa, 0, sizeof sa); + sa.ll.sll_family = AF_PACKET; ++ sa.ll.sll_protocol = htons(protocol); + sa.ll.sll_ifindex = ifr.ifr_ifindex; + if (bind (sock, &sa.common, sizeof sa)) { + if (errno == ENOPROTOOPT || errno == EPROTONOSUPPORT || +@@ -127,8 +149,6 @@ int if_register_lpf (info) + log_fatal ("Bind socket to interface: %m"); + } + +- get_hw_addr(info->name, &info->hw_address); +- + return sock; + } + #endif /* USE_LPF_SEND || USE_LPF_RECEIVE */ +@@ -183,6 +203,8 @@ void if_deregister_send (info) + in bpf includes... */ + extern struct sock_filter dhcp_bpf_filter []; + extern int dhcp_bpf_filter_len; ++extern struct sock_filter dhcp_ib_bpf_filter []; ++extern int dhcp_ib_bpf_filter_len; + + #if defined (HAVE_TR_SUPPORT) + extern struct sock_filter dhcp_bpf_tr_filter []; +@@ -200,11 +222,13 @@ void if_register_receive (info) + /* Open a LPF device and hang it on this interface... */ + info -> rfdesc = if_register_lpf (info); + +- val = 1; +- if (setsockopt (info -> rfdesc, SOL_PACKET, PACKET_AUXDATA, &val, +- sizeof val) < 0) { +- if (errno != ENOPROTOOPT) +- log_fatal ("Failed to set auxiliary packet data: %m"); ++ if (info->hw_address.hbuf[0] != HTYPE_INFINIBAND) { ++ val = 1; ++ if (setsockopt (info -> rfdesc, SOL_PACKET, PACKET_AUXDATA, ++ &val, sizeof val) < 0) { ++ if (errno != ENOPROTOOPT) ++ log_fatal ("Failed to set auxiliary packet data: %m"); ++ } + } + + #if defined (HAVE_TR_SUPPORT) +@@ -250,15 +274,28 @@ static void lpf_gen_filter_setup (info) + + memset(&p, 0, sizeof(p)); + +- /* Set up the bpf filter program structure. This is defined in +- bpf.c */ +- p.len = dhcp_bpf_filter_len; +- p.filter = dhcp_bpf_filter; +- +- /* Patch the server port into the LPF program... +- XXX changes to filter program may require changes +- to the insn number(s) used below! XXX */ +- dhcp_bpf_filter [8].k = ntohs ((short)local_port); ++ if (info->hw_address.hbuf[0] == HTYPE_INFINIBAND) { ++ /* Set up the bpf filter program structure. */ ++ p.len = dhcp_ib_bpf_filter_len; ++ p.filter = dhcp_ib_bpf_filter; ++ ++ /* Patch the server port into the LPF program... ++ XXX ++ changes to filter program may require changes ++ to the insn number(s) used below! ++ XXX */ ++ dhcp_ib_bpf_filter[6].k = ntohs ((short)local_port); ++ } else { ++ /* Set up the bpf filter program structure. ++ This is defined in bpf.c */ ++ p.len = dhcp_bpf_filter_len; ++ p.filter = dhcp_bpf_filter; ++ ++ /* Patch the server port into the LPF program... ++ XXX changes to filter program may require changes ++ to the insn number(s) used below! XXX */ ++ dhcp_bpf_filter [8].k = ntohs ((short)local_port); ++ } + + if (setsockopt (info -> rfdesc, SOL_SOCKET, SO_ATTACH_FILTER, &p, + sizeof p) < 0) { +@@ -315,6 +352,54 @@ static void lpf_tr_filter_setup (info) + #endif /* USE_LPF_RECEIVE */ + + #ifdef USE_LPF_SEND ++ssize_t send_packet_ib(interface, packet, raw, len, from, to, hto) ++ struct interface_info *interface; ++ struct packet *packet; ++ struct dhcp_packet *raw; ++ size_t len; ++ struct in_addr from; ++ struct sockaddr_in *to; ++ struct hardware *hto; ++{ ++ unsigned ibufp = 0; ++ double ih [1536 / sizeof (double)]; ++ unsigned char *buf = (unsigned char *)ih; ++ ssize_t result; ++ ++ union sockunion { ++ struct sockaddr sa; ++ struct sockaddr_ll sll; ++ struct sockaddr_storage ss; ++ } su; ++ ++ assemble_udp_ip_header (interface, buf, &ibufp, from.s_addr, ++ to->sin_addr.s_addr, to->sin_port, ++ (unsigned char *)raw, len); ++ memcpy (buf + ibufp, raw, len); ++ ++ memset(&su, 0, sizeof(su)); ++ su.sll.sll_family = AF_PACKET; ++ su.sll.sll_protocol = htons(ETHERTYPE_IP); ++ ++ if (!(su.sll.sll_ifindex = if_nametoindex(interface->name))) { ++ errno = ENOENT; ++ log_error ("send_packet_ib: %m - failed to get if index"); ++ return -1; ++ } ++ ++ su.sll.sll_hatype = htons(HTYPE_INFINIBAND); ++ su.sll.sll_halen = sizeof(interface->bcast_addr); ++ memcpy(&su.sll.sll_addr, interface->bcast_addr, 20); ++ ++ result = sendto(interface->wfdesc, buf, ibufp + len, 0, ++ &su.sa, sizeof(su)); ++ ++ if (result < 0) ++ log_error ("send_packet_ib: %m"); ++ ++ return result; ++} ++ + ssize_t send_packet (interface, packet, raw, len, from, to, hto) + struct interface_info *interface; + struct packet *packet; +@@ -335,6 +420,11 @@ ssize_t send_packet (interface, packet, + return send_fallback (interface, packet, raw, + len, from, to, hto); + ++ if (interface->hw_address.hbuf[0] == HTYPE_INFINIBAND) { ++ return send_packet_ib(interface, packet, raw, len, from, ++ to, hto); ++ } ++ + if (hto == NULL && interface->anycast_mac_addr.hlen) + hto = &interface->anycast_mac_addr; + +@@ -356,6 +446,42 @@ ssize_t send_packet (interface, packet, + #endif /* USE_LPF_SEND */ + + #ifdef USE_LPF_RECEIVE ++ssize_t receive_packet_ib (interface, buf, len, from, hfrom) ++ struct interface_info *interface; ++ unsigned char *buf; ++ size_t len; ++ struct sockaddr_in *from; ++ struct hardware *hfrom; ++{ ++ int length = 0; ++ int offset = 0; ++ unsigned char ibuf [1536]; ++ unsigned bufix = 0; ++ unsigned paylen; ++ ++ length = read(interface->rfdesc, ibuf, sizeof(ibuf)); ++ ++ if (length <= 0) ++ return length; ++ ++ offset = decode_udp_ip_header(interface, ibuf, bufix, from, ++ (unsigned)length, &paylen, 0); ++ ++ if (offset < 0) ++ return 0; ++ ++ bufix += offset; ++ length -= offset; ++ ++ if (length < paylen) ++ log_fatal("Internal inconsistency at %s:%d.", MDL); ++ ++ /* Copy out the data in the packet... */ ++ memcpy(buf, &ibuf[bufix], paylen); ++ ++ return (ssize_t)paylen; ++} ++ + ssize_t receive_packet (interface, buf, len, from, hfrom) + struct interface_info *interface; + unsigned char *buf; +@@ -382,6 +508,10 @@ ssize_t receive_packet (interface, buf, + }; + struct cmsghdr *cmsg; + ++ if (interface->hw_address.hbuf[0] == HTYPE_INFINIBAND) { ++ return receive_packet_ib(interface, buf, len, from, hfrom); ++ } ++ + length = recvmsg (interface -> rfdesc, &msg, 0); + if (length <= 0) + return length; +@@ -462,33 +592,44 @@ void maybe_setup_fallback () + } + + void +-get_hw_addr(const char *name, struct hardware *hw) { +- int sock; +- struct ifreq tmp; +- struct sockaddr *sa; ++get_hw_addr(struct interface_info *info) ++{ ++ struct hardware *hw = &info->hw_address; ++ char *name = info->name; ++ struct ifaddrs *ifaddrs; ++ struct ifaddrs *ifa; ++ struct sockaddr_ll *sll = NULL; + +- if (strlen(name) >= sizeof(tmp.ifr_name)) { +- log_fatal("Device name too long: \"%s\"", name); +- } ++ if (getifaddrs(&ifaddrs) == -1) ++ log_fatal("Failed to get interfaces"); + +- sock = socket(AF_INET, SOCK_DGRAM, 0); +- if (sock < 0) { +- log_fatal("Can't create socket for \"%s\": %m", name); ++ for (ifa = ifaddrs; ifa != NULL; ifa = ifa->ifa_next) { ++ ++ if (ifa->ifa_addr == NULL) ++ continue; ++ ++ if (ifa->ifa_addr->sa_family != AF_PACKET) ++ continue; ++ ++ if (ifa->ifa_flags & IFF_LOOPBACK) ++ continue; ++ ++ if (strcmp(ifa->ifa_name, name) == 0) { ++ sll = (struct sockaddr_ll *)(void *)ifa->ifa_addr; ++ break; ++ } + } + +- memset(&tmp, 0, sizeof(tmp)); +- strcpy(tmp.ifr_name, name); +- if (ioctl(sock, SIOCGIFHWADDR, &tmp) < 0) { +- log_fatal("Error getting hardware address for \"%s\": %m", +- name); ++ if (sll == NULL) { ++ freeifaddrs(ifaddrs); ++ log_fatal("Failed to get HW address for %s\n", name); + } + +- sa = &tmp.ifr_hwaddr; +- switch (sa->sa_family) { ++ switch (sll->sll_hatype) { + case ARPHRD_ETHER: + hw->hlen = 7; + hw->hbuf[0] = HTYPE_ETHER; +- memcpy(&hw->hbuf[1], sa->sa_data, 6); ++ memcpy(&hw->hbuf[1], sll->sll_addr, 6); + break; + case ARPHRD_IEEE802: + #ifdef ARPHRD_IEEE802_TR +@@ -496,18 +637,35 @@ get_hw_addr(const char *name, struct har + #endif /* ARPHRD_IEEE802_TR */ + hw->hlen = 7; + hw->hbuf[0] = HTYPE_IEEE802; +- memcpy(&hw->hbuf[1], sa->sa_data, 6); ++ memcpy(&hw->hbuf[1], sll->sll_addr, 6); + break; + case ARPHRD_FDDI: + hw->hlen = 17; + hw->hbuf[0] = HTYPE_FDDI; +- memcpy(&hw->hbuf[1], sa->sa_data, 16); ++ memcpy(&hw->hbuf[1], sll->sll_addr, 16); ++ break; ++ case ARPHRD_INFINIBAND: ++ /* For Infiniband, save the broadcast address and store ++ * the port GUID into the hardware address. ++ */ ++ if (ifa->ifa_flags & IFF_BROADCAST) { ++ struct sockaddr_ll *bll; ++ ++ bll = (struct sockaddr_ll *)ifa->ifa_broadaddr; ++ memcpy(&info->bcast_addr, bll->sll_addr, 20); ++ } else { ++ memcpy(&info->bcast_addr, default_ib_bcast_addr, ++ 20); ++ } ++ ++ hw->hlen = 1; ++ hw->hbuf[0] = HTYPE_INFINIBAND; + break; + #if defined(ARPHRD_PPP) + case ARPHRD_PPP: + if (local_family != AF_INET6) +- log_fatal("Unsupported device type %d for \"%s\"", +- sa->sa_family, name); ++ log_fatal("Unsupported device type %ld for \"%s\"", ++ (long int)sll->sll_family, name); + hw->hlen = 0; + hw->hbuf[0] = HTYPE_RESERVED; + /* 0xdeadbeef should never occur on the wire, +@@ -520,10 +678,11 @@ get_hw_addr(const char *name, struct har + break; + #endif + default: ++ freeifaddrs(ifaddrs); + log_fatal("Unsupported device type %ld for \"%s\"", +- (long int)sa->sa_family, name); ++ (long int)sll->sll_family, name); + } + +- close(sock); ++ freeifaddrs(ifaddrs); + } + #endif +diff -up dhcp-4.2.2/common/socket.c.lpf-ib dhcp-4.2.2/common/socket.c +--- dhcp-4.2.2/common/socket.c.lpf-ib 2011-06-27 18:18:20.000000000 +0200 ++++ dhcp-4.2.2/common/socket.c 2011-09-19 11:24:08.705775490 +0200 +@@ -324,7 +324,7 @@ void if_register_send (info) + info->wfdesc = if_register_socket(info, AF_INET, 0); + /* If this is a normal IPv4 address, get the hardware address. */ + if (strcmp(info->name, "fallback") != 0) +- get_hw_addr(info->name, &info->hw_address); ++ get_hw_addr(info); + #if defined (USE_SOCKET_FALLBACK) + /* Fallback only registers for send, but may need to receive as + well. */ +@@ -387,7 +387,7 @@ void if_register_receive (info) + #endif /* IP_PKTINFO... */ + /* If this is a normal IPv4 address, get the hardware address. */ + if (strcmp(info->name, "fallback") != 0) +- get_hw_addr(info->name, &info->hw_address); ++ get_hw_addr(info); + + if (!quiet_interface_discovery) + log_info ("Listening on Socket/%s%s%s", +@@ -497,7 +497,7 @@ if_register6(struct interface_info *info + if (req_multi) + if_register_multicast(info); + +- get_hw_addr(info->name, &info->hw_address); ++ get_hw_addr(info); + + if (!quiet_interface_discovery) { + if (info->shared_network != NULL) { +diff -up dhcp-4.2.2/includes/dhcpd.h.lpf-ib dhcp-4.2.2/includes/dhcpd.h +--- dhcp-4.2.2/includes/dhcpd.h.lpf-ib 2011-09-19 11:24:08.696775721 +0200 ++++ dhcp-4.2.2/includes/dhcpd.h 2011-09-19 11:24:08.707775438 +0200 +@@ -1243,6 +1243,7 @@ struct interface_info { + struct shared_network *shared_network; + /* Networks connected to this interface. */ + struct hardware hw_address; /* Its physical address. */ ++ u_int8_t bcast_addr[20]; /* Infiniband broadcast address */ + struct in_addr *addresses; /* Addresses associated with this + * interface. + */ +@@ -2356,7 +2357,7 @@ void print_dns_status (int, struct dhcp_ + #endif + const char *print_time(TIME); + +-void get_hw_addr(const char *name, struct hardware *hw); ++void get_hw_addr(struct interface_info *info); + + /* socket.c */ + #if defined (USE_SOCKET_SEND) || defined (USE_SOCKET_RECEIVE) \ +diff -up dhcp-4.2.2/includes/dhcp.h.lpf-ib dhcp-4.2.2/includes/dhcp.h +--- dhcp-4.2.2/includes/dhcp.h.lpf-ib 2011-09-19 11:24:08.696775721 +0200 ++++ dhcp-4.2.2/includes/dhcp.h 2011-09-19 11:24:08.707775438 +0200 +@@ -79,6 +79,7 @@ struct dhcp_packet { + #define HTYPE_ETHER 1 /* Ethernet 10Mbps */ + #define HTYPE_IEEE802 6 /* IEEE 802.2 Token Ring... */ + #define HTYPE_FDDI 8 /* FDDI... */ ++#define HTYPE_INFINIBAND 32 /* Infiniband IPoIB */ + + #define HTYPE_RESERVED 0 /* RFC 5494 */ + |