diff options
Diffstat (limited to '3rdparty/libuv/samples/socks5-proxy/server.c')
-rw-r--r-- | 3rdparty/libuv/samples/socks5-proxy/server.c | 241 |
1 files changed, 0 insertions, 241 deletions
diff --git a/3rdparty/libuv/samples/socks5-proxy/server.c b/3rdparty/libuv/samples/socks5-proxy/server.c deleted file mode 100644 index 3f1ba42c9e1..00000000000 --- a/3rdparty/libuv/samples/socks5-proxy/server.c +++ /dev/null @@ -1,241 +0,0 @@ -/* Copyright StrongLoop, Inc. All rights reserved. - * - * Permission is hereby granted, free of charge, to any person obtaining a copy - * of this software and associated documentation files (the "Software"), to - * deal in the Software without restriction, including without limitation the - * rights to use, copy, modify, merge, publish, distribute, sublicense, and/or - * sell copies of the Software, and to permit persons to whom the Software is - * furnished to do so, subject to the following conditions: - * - * The above copyright notice and this permission notice shall be included in - * all copies or substantial portions of the Software. - * - * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR - * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, - * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE - * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER - * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING - * FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS - * IN THE SOFTWARE. - */ - -#include "defs.h" -#include <netinet/in.h> /* INET6_ADDRSTRLEN */ -#include <stdlib.h> -#include <string.h> - -#ifndef INET6_ADDRSTRLEN -# define INET6_ADDRSTRLEN 63 -#endif - -typedef struct { - uv_getaddrinfo_t getaddrinfo_req; - server_config config; - server_ctx *servers; - uv_loop_t *loop; -} server_state; - -static void do_bind(uv_getaddrinfo_t *req, int status, struct addrinfo *ai); -static void on_connection(uv_stream_t *server, int status); - -int server_run(const server_config *cf, uv_loop_t *loop) { - struct addrinfo hints; - server_state state; - int err; - - memset(&state, 0, sizeof(state)); - state.servers = NULL; - state.config = *cf; - state.loop = loop; - - /* Resolve the address of the interface that we should bind to. - * The getaddrinfo callback starts the server and everything else. - */ - memset(&hints, 0, sizeof(hints)); - hints.ai_family = AF_UNSPEC; - hints.ai_socktype = SOCK_STREAM; - hints.ai_protocol = IPPROTO_TCP; - - err = uv_getaddrinfo(loop, - &state.getaddrinfo_req, - do_bind, - cf->bind_host, - NULL, - &hints); - if (err != 0) { - pr_err("getaddrinfo: %s", uv_strerror(err)); - return err; - } - - /* Start the event loop. Control continues in do_bind(). */ - if (uv_run(loop, UV_RUN_DEFAULT)) { - abort(); - } - - /* Please Valgrind. */ - uv_loop_delete(loop); - free(state.servers); - return 0; -} - -/* Bind a server to each address that getaddrinfo() reported. */ -static void do_bind(uv_getaddrinfo_t *req, int status, struct addrinfo *addrs) { - char addrbuf[INET6_ADDRSTRLEN + 1]; - unsigned int ipv4_naddrs; - unsigned int ipv6_naddrs; - server_state *state; - server_config *cf; - struct addrinfo *ai; - const void *addrv; - const char *what; - uv_loop_t *loop; - server_ctx *sx; - unsigned int n; - int err; - union { - struct sockaddr addr; - struct sockaddr_in addr4; - struct sockaddr_in6 addr6; - } s; - - state = CONTAINER_OF(req, server_state, getaddrinfo_req); - loop = state->loop; - cf = &state->config; - - if (status < 0) { - pr_err("getaddrinfo(\"%s\"): %s", cf->bind_host, uv_strerror(status)); - uv_freeaddrinfo(addrs); - return; - } - - ipv4_naddrs = 0; - ipv6_naddrs = 0; - for (ai = addrs; ai != NULL; ai = ai->ai_next) { - if (ai->ai_family == AF_INET) { - ipv4_naddrs += 1; - } else if (ai->ai_family == AF_INET6) { - ipv6_naddrs += 1; - } - } - - if (ipv4_naddrs == 0 && ipv6_naddrs == 0) { - pr_err("%s has no IPv4/6 addresses", cf->bind_host); - uv_freeaddrinfo(addrs); - return; - } - - state->servers = - xmalloc((ipv4_naddrs + ipv6_naddrs) * sizeof(state->servers[0])); - - n = 0; - for (ai = addrs; ai != NULL; ai = ai->ai_next) { - if (ai->ai_family != AF_INET && ai->ai_family != AF_INET6) { - continue; - } - - if (ai->ai_family == AF_INET) { - s.addr4 = *(const struct sockaddr_in *) ai->ai_addr; - s.addr4.sin_port = htons(cf->bind_port); - addrv = &s.addr4.sin_addr; - } else if (ai->ai_family == AF_INET6) { - s.addr6 = *(const struct sockaddr_in6 *) ai->ai_addr; - s.addr6.sin6_port = htons(cf->bind_port); - addrv = &s.addr6.sin6_addr; - } else { - UNREACHABLE(); - } - - if (uv_inet_ntop(s.addr.sa_family, addrv, addrbuf, sizeof(addrbuf))) { - UNREACHABLE(); - } - - sx = state->servers + n; - sx->loop = loop; - sx->idle_timeout = state->config.idle_timeout; - CHECK(0 == uv_tcp_init(loop, &sx->tcp_handle)); - - what = "uv_tcp_bind"; - err = uv_tcp_bind(&sx->tcp_handle, &s.addr, 0); - if (err == 0) { - what = "uv_listen"; - err = uv_listen((uv_stream_t *) &sx->tcp_handle, 128, on_connection); - } - - if (err != 0) { - pr_err("%s(\"%s:%hu\"): %s", - what, - addrbuf, - cf->bind_port, - uv_strerror(err)); - while (n > 0) { - n -= 1; - uv_close((uv_handle_t *) (state->servers + n), NULL); - } - break; - } - - pr_info("listening on %s:%hu", addrbuf, cf->bind_port); - n += 1; - } - - uv_freeaddrinfo(addrs); -} - -static void on_connection(uv_stream_t *server, int status) { - server_ctx *sx; - client_ctx *cx; - - CHECK(status == 0); - sx = CONTAINER_OF(server, server_ctx, tcp_handle); - cx = xmalloc(sizeof(*cx)); - CHECK(0 == uv_tcp_init(sx->loop, &cx->incoming.handle.tcp)); - CHECK(0 == uv_accept(server, &cx->incoming.handle.stream)); - client_finish_init(sx, cx); -} - -int can_auth_none(const server_ctx *sx, const client_ctx *cx) { - return 1; -} - -int can_auth_passwd(const server_ctx *sx, const client_ctx *cx) { - return 0; -} - -int can_access(const server_ctx *sx, - const client_ctx *cx, - const struct sockaddr *addr) { - const struct sockaddr_in6 *addr6; - const struct sockaddr_in *addr4; - const uint32_t *p; - uint32_t a; - uint32_t b; - uint32_t c; - uint32_t d; - - /* TODO(bnoordhuis) Implement proper access checks. For now, just reject - * traffic to localhost. - */ - if (addr->sa_family == AF_INET) { - addr4 = (const struct sockaddr_in *) addr; - d = ntohl(addr4->sin_addr.s_addr); - return (d >> 24) != 0x7F; - } - - if (addr->sa_family == AF_INET6) { - addr6 = (const struct sockaddr_in6 *) addr; - p = (const uint32_t *) &addr6->sin6_addr.s6_addr; - a = ntohl(p[0]); - b = ntohl(p[1]); - c = ntohl(p[2]); - d = ntohl(p[3]); - if (a == 0 && b == 0 && c == 0 && d == 1) { - return 0; /* "::1" style address. */ - } - if (a == 0 && b == 0 && c == 0xFFFF && (d >> 24) == 0x7F) { - return 0; /* "::ffff:127.x.x.x" style address. */ - } - return 1; - } - - return 0; -} |