X-Git-Url: https://tinc-vpn.org/git/browse?p=tinc;a=blobdiff_plain;f=src%2Fnet_setup.c;h=3268f5db24b9c732b0a6371731efa77d3733c37c;hp=118d719c439d4420e023915c0406686973c9c45f;hb=3b1fad04de6bed2f284fdf3d5b27d4162aeebc8c;hpb=9f53ab209d8a6a7622a49ed03cef735b6e3f3eeb diff --git a/src/net_setup.c b/src/net_setup.c index 118d719c..3268f5db 100644 --- a/src/net_setup.c +++ b/src/net_setup.c @@ -1,8 +1,9 @@ /* net_setup.c -- Setup. Copyright (C) 1998-2005 Ivo Timmermans, - 2000-2010 Guus Sliepen + 2000-2012 Guus Sliepen 2006 Scott Lamb + 2010 Brandon Black This program is free software; you can redistribute it and/or modify it under the terms of the GNU General Public License as published by @@ -44,6 +45,7 @@ #include "xalloc.h" char *myport; +devops_t devops; bool read_rsa_public_key(connection_t *c) { FILE *fp; @@ -112,11 +114,14 @@ bool read_rsa_public_key(connection_t *c) { xasprintf(&fname, "%s/hosts/%s", confbase, c->name); fp = fopen(fname, "r"); - if(fp) { - c->rsa_key = PEM_read_RSAPublicKey(fp, &c->rsa_key, NULL, NULL); - fclose(fp); + if(!fp) { + logger(LOG_ERR, "Error reading RSA public key file `%s': %s", fname, strerror(errno)); + free(fname); + return false; } + c->rsa_key = PEM_read_RSAPublicKey(fp, &c->rsa_key, NULL, NULL); + fclose(fp); free(fname); if(c->rsa_key) @@ -127,12 +132,15 @@ bool read_rsa_public_key(connection_t *c) { xasprintf(&fname, "%s/hosts/%s", confbase, c->name); fp = fopen(fname, "r"); - if(fp) { - c->rsa_key = PEM_read_RSA_PUBKEY(fp, &c->rsa_key, NULL, NULL); -// RSA_blinding_on(c->rsa_key, NULL); - fclose(fp); + if(!fp) { + logger(LOG_ERR, "Error reading RSA public key file `%s': %s", fname, strerror(errno)); + free(fname); + return false; } + c->rsa_key = PEM_read_RSA_PUBKEY(fp, &c->rsa_key, NULL, NULL); +// RSA_blinding_on(c->rsa_key, NULL); + fclose(fp); free(fname); if(c->rsa_key) @@ -143,13 +151,13 @@ bool read_rsa_public_key(connection_t *c) { return false; } -bool read_rsa_private_key(void) { +static bool read_rsa_private_key(void) { FILE *fp; char *fname, *key, *pubkey; struct stat s; if(get_config_string(lookup_config(config_tree, "PrivateKey"), &key)) { - if(!get_config_string(lookup_config(myself->connection->config_tree, "PublicKey"), &pubkey)) { + if(!get_config_string(lookup_config(config_tree, "PublicKey"), &pubkey)) { logger(LOG_ERR, "PrivateKey used but no PublicKey found!"); return false; } @@ -228,9 +236,6 @@ void load_all_subnets(void) { continue; n = lookup_node(ent->d_name); - if(n) - continue; - #ifdef _DIRENT_HAVE_D_TYPE //if(ent->d_type != DT_REG) // continue; @@ -243,9 +248,11 @@ void load_all_subnets(void) { if(!result) continue; - n = new_node(); - n->name = xstrdup(ent->d_name); - node_add(n); + if(!n) { + n = new_node(); + n->name = xstrdup(ent->d_name); + node_add(n); + } for(cfg = lookup_config(config_tree, "Subnet"); cfg; cfg = lookup_config_next(config_tree, cfg)) { if(!get_config_subnet(cfg, &s)) @@ -267,19 +274,20 @@ void load_all_subnets(void) { /* Configure node_t myself and set up the local sockets (listen only) */ -bool setup_myself(void) { +static bool setup_myself(void) { config_t *cfg; subnet_t *subnet; - char *name, *hostname, *mode, *afname, *cipher, *digest; + char *name, *hostname, *mode, *afname, *cipher, *digest, *type; + char *fname = NULL; char *address = NULL; char *envp[5]; struct addrinfo *ai, *aip, hint = {0}; bool choice; int i, err; + int replaywin_int; myself = new_node(); myself->connection = new_connection(); - init_configuration(&myself->connection->config_tree); myself->hostname = xstrdup("MYSELF"); myself->connection->hostname = xstrdup("MYSELF"); @@ -300,17 +308,15 @@ bool setup_myself(void) { myself->name = name; myself->connection->name = xstrdup(name); - - if(!read_connection_config(myself->connection)) { - logger(LOG_ERR, "Cannot open host configuration file for myself!"); - return false; - } + xasprintf(&fname, "%s/hosts/%s", confbase, name); + read_config_options(config_tree, name); + read_config_file(config_tree, fname); + free(fname); if(!read_rsa_private_key()) return false; - if(!get_config_string(lookup_config(config_tree, "Port"), &myport) - && !get_config_string(lookup_config(myself->connection->config_tree, "Port"), &myport)) + if(!get_config_string(lookup_config(config_tree, "Port"), &myport)) myport = xstrdup("655"); if(!atoi(myport)) { @@ -325,7 +331,7 @@ bool setup_myself(void) { /* Read in all the subnets specified in the host configuration file */ - cfg = lookup_config(myself->connection->config_tree, "Subnet"); + cfg = lookup_config(config_tree, "Subnet"); while(cfg) { if(!get_config_subnet(cfg, &subnet)) @@ -333,7 +339,7 @@ bool setup_myself(void) { subnet_add(myself, subnet); - cfg = lookup_config_next(myself->connection->config_tree, cfg); + cfg = lookup_config_next(config_tree, cfg); } /* Check some options */ @@ -344,12 +350,6 @@ bool setup_myself(void) { if(get_config_bool(lookup_config(config_tree, "TCPOnly"), &choice) && choice) myself->options |= OPTION_TCPONLY; - if(get_config_bool(lookup_config(myself->connection->config_tree, "IndirectData"), &choice) && choice) - myself->options |= OPTION_INDIRECT; - - if(get_config_bool(lookup_config(myself->connection->config_tree, "TCPOnly"), &choice) && choice) - myself->options |= OPTION_TCPONLY; - if(myself->options & OPTION_TCPONLY) myself->options |= OPTION_INDIRECT; @@ -387,14 +387,12 @@ bool setup_myself(void) { } choice = true; - get_config_bool(lookup_config(myself->connection->config_tree, "PMTUDiscovery"), &choice); get_config_bool(lookup_config(config_tree, "PMTUDiscovery"), &choice); if(choice) myself->options |= OPTION_PMTU_DISCOVERY; choice = true; get_config_bool(lookup_config(config_tree, "ClampMSS"), &choice); - get_config_bool(lookup_config(myself->connection->config_tree, "ClampMSS"), &choice); if(choice) myself->options |= OPTION_CLAMP_MSS; @@ -416,6 +414,28 @@ bool setup_myself(void) { } else maxtimeout = 900; + if(get_config_int(lookup_config(config_tree, "UDPRcvBuf"), &udp_rcvbuf)) { + if(udp_rcvbuf <= 0) { + logger(LOG_ERR, "UDPRcvBuf cannot be negative!"); + return false; + } + } + + if(get_config_int(lookup_config(config_tree, "UDPSndBuf"), &udp_sndbuf)) { + if(udp_sndbuf <= 0) { + logger(LOG_ERR, "UDPSndBuf cannot be negative!"); + return false; + } + } + + if(get_config_int(lookup_config(config_tree, "ReplayWindow"), &replaywin_int)) { + if(replaywin_int < 0) { + logger(LOG_ERR, "ReplayWindow cannot be negative!"); + return false; + } + replaywin = (unsigned)replaywin_int; + } + if(get_config_string(lookup_config(config_tree, "AddressFamily"), &afname)) { if(!strcasecmp(afname, "IPv4")) addressfamily = AF_INET; @@ -435,7 +455,7 @@ bool setup_myself(void) { /* Generate packet encryption key */ if(get_config_string - (lookup_config(myself->connection->config_tree, "Cipher"), &cipher)) { + (lookup_config(config_tree, "Cipher"), &cipher)) { if(!strcasecmp(cipher, "none")) { myself->incipher = NULL; } else { @@ -463,7 +483,7 @@ bool setup_myself(void) { /* Check if we want to use message authentication codes... */ - if(get_config_string(lookup_config(myself->connection->config_tree, "Digest"), &digest)) { + if(get_config_string(lookup_config(config_tree, "Digest"), &digest)) { if(!strcasecmp(digest, "none")) { myself->indigest = NULL; } else { @@ -479,7 +499,7 @@ bool setup_myself(void) { myself->connection->outdigest = EVP_sha1(); - if(get_config_int(lookup_config(myself->connection->config_tree, "MACLength"), &myself->inmaclength)) { + if(get_config_int(lookup_config(config_tree, "MACLength"), &myself->inmaclength)) { if(myself->indigest) { if(myself->inmaclength > myself->indigest->md_size) { logger(LOG_ERR, "MAC length exceeds size of digest!"); @@ -496,7 +516,7 @@ bool setup_myself(void) { /* Compression */ - if(get_config_int(lookup_config(myself->connection->config_tree, "Compression"), &myself->incompression)) { + if(get_config_int(lookup_config(config_tree, "Compression"), &myself->incompression)) { if(myself->incompression < 0 || myself->incompression > 11) { logger(LOG_ERR, "Bogus compression level!"); return false; @@ -520,7 +540,24 @@ bool setup_myself(void) { /* Open device */ - if(!setup_device()) + devops = os_devops; + + if(get_config_string(lookup_config(config_tree, "DeviceType"), &type)) { + if(!strcasecmp(type, "dummy")) + devops = dummy_devops; + else if(!strcasecmp(type, "raw_socket")) + devops = raw_socket_devops; +#ifdef ENABLE_UML + else if(!strcasecmp(type, "uml")) + devops = uml_devops; +#endif +#ifdef ENABLE_VDE + else if(!strcasecmp(type, "vde")) + devops = vde_devops; +#endif + } + + if(!devops.setup()) return false; /* Run tinc-up script to further initialize the tap interface */ @@ -683,7 +720,7 @@ void close_network_connections(void) { for(i = 0; i < 4; i++) free(envp[i]); - close_device(); + devops.close(); return; }