diff options
| -rw-r--r-- | lib/socket.c | 241 |
1 files changed, 241 insertions, 0 deletions
diff --git a/lib/socket.c b/lib/socket.c index 8afcece..e1489a3 100644 --- a/lib/socket.c +++ b/lib/socket.c @@ -96,6 +96,18 @@ # define AI_CANONIDN 0 #endif +#ifndef IPV6_FLOWINFO +# define IPV6_FLOWINFO 11 +#endif + +#ifndef IPV6_FLOWLABEL_MGR +# define IPV6_FLOWLABEL_MGR 32 +#endif + +#ifndef IPV6_FLOWINFO_SEND +# define IPV6_FLOWINFO_SEND 33 +#endif + #define ok_return(expr) do { set_error(0, NULL); return (expr); } while(0) #define err_return(err, ...) do { set_error(err, __VA_ARGS__); return NULL; } while(0) @@ -955,7 +967,86 @@ static struct_t st_ip_mreq_source = { } }; +/* This structure is declared in kernel, but not libc headers, so redeclare it + locally */ +struct in6_flowlabel_req_local { + struct in6_addr flr_dst; + uint32_t flr_label; + uint8_t flr_action; + uint8_t flr_share; + uint16_t flr_flags; + uint16_t flr_expires; + uint16_t flr_linger; +}; + +static struct_t st_in6_flowlabel_req = { + .size = sizeof(struct in6_flowlabel_req_local), + .members = (member_t []){ + STRUCT_MEMBER(in6_flowlabel_req_local, flr, dst, DT_IPV6ADDR), + STRUCT_MEMBER(in6_flowlabel_req_local, flr, label, DT_UNSIGNED), + STRUCT_MEMBER(in6_flowlabel_req_local, flr, action, DT_UNSIGNED), + STRUCT_MEMBER(in6_flowlabel_req_local, flr, share, DT_UNSIGNED), + STRUCT_MEMBER(in6_flowlabel_req_local, flr, flags, DT_UNSIGNED), + STRUCT_MEMBER(in6_flowlabel_req_local, flr, expires, DT_UNSIGNED), + STRUCT_MEMBER(in6_flowlabel_req_local, flr, linger, DT_UNSIGNED), + { 0 } + } +}; + #if defined(__linux__) +static uc_value_t * +in6_ifindex_to_uv(void *st) +{ + char ifname[IF_NAMESIZE] = { 0 }; + struct ipv6_mreq *mr = st; + + if (mr->ipv6mr_interface > 0 && if_indextoname(mr->ipv6mr_interface, ifname)) + return ucv_string_new(ifname); + + return ucv_int64_new(mr->ipv6mr_interface); +} + +static bool +in6_ifindex_to_c(void *st, uc_value_t *uv) +{ + struct ipv6_mreq *mr = st; + + if (ucv_type(uv) == UC_STRING) { + mr->ipv6mr_interface = if_nametoindex(ucv_string_get(uv)); + + if (mr->ipv6mr_interface == 0) + err_return(errno, "Unable to resolve interface %s", + ucv_string_get(uv)); + } + else { + mr->ipv6mr_interface = ucv_to_integer(uv); + + if (errno) + err_return(errno, "Unable to convert interface to integer"); + } + + return true; +} + +static struct_t st_ipv6_mreq = { + .size = sizeof(struct ipv6_mreq), + .members = (member_t []){ + STRUCT_MEMBER(ipv6_mreq, ipv6mr, multiaddr, DT_IPV6ADDR), + STRUCT_MEMBER_CB(interface, in6_ifindex_to_c, in6_ifindex_to_uv), + { 0 } + } +}; + +/* NB: this is the same layout as struct ipv6_mreq, so we reuse the callbacks */ +static struct_t st_in6_pktinfo = { + .size = sizeof(struct in6_pktinfo), + .members = (member_t []){ + STRUCT_MEMBER(in6_pktinfo, ipi6, addr, DT_IPV6ADDR), + STRUCT_MEMBER_CB(interface, in6_ifindex_to_c, in6_ifindex_to_uv), + { 0 } + } +}; + static struct_t st_ip_msfilter = { .size = sizeof(struct ip_msfilter), .members = (member_t []){ @@ -1276,6 +1367,52 @@ static sockopt_t sockopts[] = { { IPPROTO_IP, IP_TRANSPARENT, SV_BOOL }, #endif + { IPPROTO_IPV6, IPV6_FLOWINFO_SEND, SV_BOOL }, + { IPPROTO_IPV6, IPV6_FLOWINFO, SV_BOOL }, + { IPPROTO_IPV6, IPV6_FLOWLABEL_MGR, &st_in6_flowlabel_req }, + { IPPROTO_IPV6, IPV6_MULTICAST_HOPS, SV_INT }, + { IPPROTO_IPV6, IPV6_MULTICAST_IF, SV_IFNAME }, + { IPPROTO_IPV6, IPV6_MULTICAST_LOOP, SV_BOOL }, + { IPPROTO_IPV6, IPV6_RECVTCLASS, SV_BOOL }, + { IPPROTO_IPV6, IPV6_TCLASS, SV_INT }, + { IPPROTO_IPV6, IPV6_UNICAST_HOPS, SV_INT }, + { IPPROTO_IPV6, IPV6_V6ONLY, SV_BOOL }, +#if defined(__linux__) + { IPPROTO_IPV6, IPV6_ADD_MEMBERSHIP, &st_ipv6_mreq }, + { IPPROTO_IPV6, IPV6_ADDR_PREFERENCES, SV_INT }, + { IPPROTO_IPV6, IPV6_ADDRFORM, SV_INT }, + { IPPROTO_IPV6, IPV6_AUTHHDR, SV_BOOL }, + { IPPROTO_IPV6, IPV6_AUTOFLOWLABEL, SV_BOOL }, + { IPPROTO_IPV6, IPV6_DONTFRAG, SV_BOOL }, + { IPPROTO_IPV6, IPV6_DROP_MEMBERSHIP, &st_ipv6_mreq }, + { IPPROTO_IPV6, IPV6_DSTOPTS, SV_STRING }, + { IPPROTO_IPV6, IPV6_FREEBIND, SV_BOOL }, + { IPPROTO_IPV6, IPV6_HOPLIMIT, SV_BOOL }, + { IPPROTO_IPV6, IPV6_HOPOPTS, SV_STRING }, + { IPPROTO_IPV6, IPV6_JOIN_ANYCAST, &st_ipv6_mreq }, + { IPPROTO_IPV6, IPV6_LEAVE_ANYCAST, &st_ipv6_mreq }, + { IPPROTO_IPV6, IPV6_MINHOPCOUNT, SV_INT }, + { IPPROTO_IPV6, IPV6_MTU_DISCOVER, SV_INT }, + { IPPROTO_IPV6, IPV6_MTU, SV_INT }, + { IPPROTO_IPV6, IPV6_MULTICAST_ALL, SV_BOOL }, + { IPPROTO_IPV6, IPV6_PKTINFO, &st_in6_pktinfo }, + { IPPROTO_IPV6, IPV6_RECVDSTOPTS, SV_BOOL }, + { IPPROTO_IPV6, IPV6_RECVERR, SV_BOOL }, + { IPPROTO_IPV6, IPV6_RECVFRAGSIZE, SV_BOOL }, + { IPPROTO_IPV6, IPV6_RECVHOPLIMIT, SV_BOOL }, + { IPPROTO_IPV6, IPV6_RECVHOPOPTS, SV_BOOL }, + { IPPROTO_IPV6, IPV6_RECVORIGDSTADDR, SV_BOOL }, + { IPPROTO_IPV6, IPV6_RECVPATHMTU, SV_BOOL }, + { IPPROTO_IPV6, IPV6_RECVPKTINFO, SV_BOOL }, + { IPPROTO_IPV6, IPV6_RECVRTHDR, SV_BOOL }, + { IPPROTO_IPV6, IPV6_ROUTER_ALERT_ISOLATE, SV_BOOL }, + { IPPROTO_IPV6, IPV6_ROUTER_ALERT, SV_BOOL }, + { IPPROTO_IPV6, IPV6_RTHDR, SV_STRING }, + { IPPROTO_IPV6, IPV6_RTHDRDSTOPTS, SV_STRING }, + { IPPROTO_IPV6, IPV6_TRANSPARENT, SV_BOOL }, + { IPPROTO_IPV6, IPV6_UNICAST_IF, SV_IFNAME }, +#endif + { IPPROTO_TCP, TCP_KEEPCNT, SV_INT }, { IPPROTO_TCP, TCP_KEEPINTVL, SV_INT }, { IPPROTO_TCP, TCP_MAXSEG, SV_INT }, @@ -3651,6 +3788,110 @@ void uc_module_init(uc_vm_t *vm, uc_value_t *scope) #endif /** + * @typedef {Object} IPv6 Protocol Constants + * @description + * The `IPPROTO_IPV6` constant specifies the IPv6 protocol number and may be + * passed as third argument to {@link module:socket#create|create()} as well + * as *level* argument value to {@link module:socket.socket#getopt|getopt()} + * and {@link module:socket.socket#setopt|setopt()}. + * + * The `IPV6_*` constants are option names recognized by + * {@link module:socket.socket#getopt|getopt()} + * and {@link module:socket.socket#setopt|setopt()}, in conjunction with + * the `IPPROTO_IPV6` socket level. + * @property {number} IPPROTO_IPV6 - The IPv6 protocol. + * @property {number} IPV6_ADDRFORM - Turn an AF_INET6 socket into a socket of a different address family. Only AF_INET is supported. + * @property {number} IPV6_ADDR_PREFERENCES - Specify preferences for address selection. + * @property {number} IPV6_ADD_MEMBERSHIP - Add an IPv6 group membership. + * @property {number} IPV6_AUTHHDR - Set delivery of the authentication header control message for incoming datagrams. + * @property {number} IPV6_AUTOFLOWLABEL - Enable or disable automatic flow labels. + * @property {number} IPV6_DONTFRAG - Control whether the socket allows IPv6 fragmentation. + * @property {number} IPV6_DROP_MEMBERSHIP - Drop an IPv6 group membership. + * @property {number} IPV6_DSTOPTS - Set delivery of the destination options control message for incoming datagrams. + * @property {number} IPV6_FLOWINFO_SEND - Control whether flow information is sent. + * @property {number} IPV6_FLOWINFO - Set delivery of the flow ID control message for incoming datagrams. + * @property {number} IPV6_FLOWLABEL_MGR - Manage flow labels. + * @property {number} IPV6_FREEBIND - Allow binding to an IP address not assigned to a network interface. + * @property {number} IPV6_HOPLIMIT - Set delivery of the hop limit control message for incoming datagrams. + * @property {number} IPV6_HOPOPTS - Set delivery of the hop options control message for incoming datagrams. + * @property {number} IPV6_JOIN_ANYCAST - Join an anycast group. + * @property {number} IPV6_LEAVE_ANYCAST - Leave an anycast group. + * @property {number} IPV6_MINHOPCOUNT - Set the minimum hop count. + * @property {number} IPV6_MTU - Retrieve or set the MTU to be used for the socket. + * @property {number} IPV6_MTU_DISCOVER - Control path-MTU discovery on the socket. + * @property {number} IPV6_MULTICAST_ALL - Control whether the socket receives all multicast packets. + * @property {number} IPV6_MULTICAST_HOPS - Set the multicast hop limit for the socket. + * @property {number} IPV6_MULTICAST_IF - Set the device for outgoing multicast packets on the socket. + * @property {number} IPV6_MULTICAST_LOOP - Control whether the socket sees multicast packets that it has sent itself. + * @property {number} IPV6_PKTINFO - Set delivery of the IPV6_PKTINFO control message on incoming datagrams. + * @property {number} IPV6_RECVDSTOPTS - Control receiving of the destination options control message. + * @property {number} IPV6_RECVERR - Control receiving of asynchronous error options. + * @property {number} IPV6_RECVFRAGSIZE - Control receiving of fragment size. + * @property {number} IPV6_RECVHOPLIMIT - Control receiving of hop limit. + * @property {number} IPV6_RECVHOPOPTS - Control receiving of hop options. + * @property {number} IPV6_RECVORIGDSTADDR - Control receiving of the original destination address. + * @property {number} IPV6_RECVPATHMTU - Control receiving of path MTU. + * @property {number} IPV6_RECVPKTINFO - Control receiving of packet information. + * @property {number} IPV6_RECVRTHDR - Control receiving of routing header. + * @property {number} IPV6_RECVTCLASS - Control receiving of traffic class. + * @property {number} IPV6_ROUTER_ALERT_ISOLATE - Control isolation of router alert messages. + * @property {number} IPV6_ROUTER_ALERT - Pass forwarded packets containing a router alert hop-by-hop option to this socket. + * @property {number} IPV6_RTHDR - Set delivery of the routing header control message for incoming datagrams. + * @property {number} IPV6_RTHDRDSTOPTS - Set delivery of the routing header destination options control message. + * @property {number} IPV6_TCLASS - Set the traffic class. + * @property {number} IPV6_TRANSPARENT - Enable transparent proxy support. + * @property {number} IPV6_UNICAST_HOPS - Set the unicast hop limit for the socket. + * @property {number} IPV6_UNICAST_IF - Set the interface for outgoing unicast packets. + * @property {number} IPV6_V6ONLY - Restrict the socket to sending and receiving IPv6 packets only. + */ + ADD_CONST(IPPROTO_IPV6); + ADD_CONST(IPV6_FLOWINFO_SEND); + ADD_CONST(IPV6_FLOWINFO); + ADD_CONST(IPV6_FLOWLABEL_MGR); + ADD_CONST(IPV6_MULTICAST_HOPS); + ADD_CONST(IPV6_MULTICAST_IF); + ADD_CONST(IPV6_MULTICAST_LOOP); + ADD_CONST(IPV6_RECVTCLASS); + ADD_CONST(IPV6_TCLASS); + ADD_CONST(IPV6_UNICAST_HOPS); + ADD_CONST(IPV6_V6ONLY); +#if defined(__linux__) + ADD_CONST(IPV6_ADD_MEMBERSHIP); + ADD_CONST(IPV6_ADDR_PREFERENCES); + ADD_CONST(IPV6_ADDRFORM); + ADD_CONST(IPV6_AUTHHDR); + ADD_CONST(IPV6_AUTOFLOWLABEL); + ADD_CONST(IPV6_DONTFRAG); + ADD_CONST(IPV6_DROP_MEMBERSHIP); + ADD_CONST(IPV6_DSTOPTS); + ADD_CONST(IPV6_FREEBIND); + ADD_CONST(IPV6_HOPLIMIT); + ADD_CONST(IPV6_HOPOPTS); + ADD_CONST(IPV6_JOIN_ANYCAST); + ADD_CONST(IPV6_LEAVE_ANYCAST); + ADD_CONST(IPV6_MINHOPCOUNT); + ADD_CONST(IPV6_MTU_DISCOVER); + ADD_CONST(IPV6_MTU); + ADD_CONST(IPV6_MULTICAST_ALL); + ADD_CONST(IPV6_PKTINFO); + ADD_CONST(IPV6_RECVDSTOPTS); + ADD_CONST(IPV6_RECVERR); + ADD_CONST(IPV6_RECVFRAGSIZE); + ADD_CONST(IPV6_RECVHOPLIMIT); + ADD_CONST(IPV6_RECVHOPOPTS); + ADD_CONST(IPV6_RECVORIGDSTADDR); + ADD_CONST(IPV6_RECVPATHMTU); + ADD_CONST(IPV6_RECVPKTINFO); + ADD_CONST(IPV6_RECVRTHDR); + ADD_CONST(IPV6_ROUTER_ALERT_ISOLATE); + ADD_CONST(IPV6_ROUTER_ALERT); + ADD_CONST(IPV6_RTHDR); + ADD_CONST(IPV6_RTHDRDSTOPTS); + ADD_CONST(IPV6_TRANSPARENT); + ADD_CONST(IPV6_UNICAST_IF); +#endif + + /** * @typedef * @name Socket Option Constants * @description |