/* * Copyright (c) 2014 DeNA Co., Ltd. * * 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 #include #include #include #include #include #include "h2o.h" #include "h2o/configurator.h" #include "h2o/balancer.h" #include "h2o/socket.h" struct proxy_config_vars_t { h2o_proxy_config_vars_t conf; SSL_CTX *ssl_ctx; }; struct proxy_configurator_t { h2o_configurator_t super; unsigned connect_timeout_set : 1; unsigned first_byte_timeout_set : 1; struct proxy_config_vars_t *vars; struct proxy_config_vars_t _vars_stack[H2O_CONFIGURATOR_NUM_LEVELS + 1]; }; static void warn_deprecation(h2o_configurator_command_t *cmd, yoml_t *node, const char *new_cmd, const char *extra) { if (strcasecmp(cmd->name, new_cmd) != 0) h2o_configurator_errprintf(cmd, node, "the command is deprecated; use %s%s", new_cmd, extra); } static int on_config_timeout_io(h2o_configurator_command_t *cmd, h2o_configurator_context_t *ctx, yoml_t *node) { int ret; struct proxy_configurator_t *self = (void *)cmd->configurator; ret = h2o_configurator_scanf(cmd, node, "%" SCNu64, &self->vars->conf.io_timeout); if (ret < 0) return ret; if (!self->connect_timeout_set) self->vars->conf.connect_timeout = self->vars->conf.io_timeout; if (!self->first_byte_timeout_set) self->vars->conf.first_byte_timeout = self->vars->conf.io_timeout; return ret; } static int on_config_timeout_connect(h2o_configurator_command_t *cmd, h2o_configurator_context_t *ctx, yoml_t *node) { struct proxy_configurator_t *self = (void *)cmd->configurator; self->connect_timeout_set = 1; return h2o_configurator_scanf(cmd, node, "%" SCNu64, &self->vars->conf.connect_timeout); } static int on_config_timeout_first_byte(h2o_configurator_command_t *cmd, h2o_configurator_context_t *ctx, yoml_t *node) { struct proxy_configurator_t *self = (void *)cmd->configurator; self->first_byte_timeout_set = 1; return h2o_configurator_scanf(cmd, node, "%" SCNu64, &self->vars->conf.first_byte_timeout); } static int on_config_timeout_keepalive(h2o_configurator_command_t *cmd, h2o_configurator_context_t *ctx, yoml_t *node) { struct proxy_configurator_t *self = (void *)cmd->configurator; return h2o_configurator_scanf(cmd, node, "%" SCNu64, &self->vars->conf.keepalive_timeout); } static int on_config_happy_eyeballs_name_resolution_delay(h2o_configurator_command_t *cmd, h2o_configurator_context_t *ctx, yoml_t *node) { struct proxy_configurator_t *self = (void *)cmd->configurator; return h2o_configurator_scanf(cmd, node, "%" SCNu64, &self->vars->conf.happy_eyeballs.name_resolution_delay); } static int on_config_happy_eyeballs_connection_attempt_delay(h2o_configurator_command_t *cmd, h2o_configurator_context_t *ctx, yoml_t *node) { struct proxy_configurator_t *self = (void *)cmd->configurator; return h2o_configurator_scanf(cmd, node, "%" SCNu64, &self->vars->conf.happy_eyeballs.connection_attempt_delay); } static int on_config_preserve_host(h2o_configurator_command_t *cmd, h2o_configurator_context_t *ctx, yoml_t *node) { struct proxy_configurator_t *self = (void *)cmd->configurator; ssize_t ret = h2o_configurator_get_one_of(cmd, node, "OFF,ON"); if (ret == -1) return -1; self->vars->conf.preserve_host = (int)ret; return 0; } static int on_config_proxy_protocol(h2o_configurator_command_t *cmd, h2o_configurator_context_t *ctx, yoml_t *node) { struct proxy_configurator_t *self = (void *)cmd->configurator; ssize_t ret = h2o_configurator_get_one_of(cmd, node, "OFF,ON"); if (ret == -1) return -1; self->vars->conf.use_proxy_protocol = (int)ret; return 0; } static int on_config_connect_proxy_status(h2o_configurator_command_t *cmd, h2o_configurator_context_t *ctx, yoml_t *node) { warn_deprecation(cmd, node, "proxy.connect.emit-proxy-status", ""); struct proxy_configurator_t *self = (void *)cmd->configurator; ssize_t ret = h2o_configurator_get_one_of(cmd, node, "OFF,ON"); if (ret == -1) return -1; self->vars->conf.connect_proxy_status_enabled = (int)ret; return 0; } static int on_config_proxy_status_identity(h2o_configurator_command_t *cmd, h2o_configurator_context_t *ctx, yoml_t *node) { warn_deprecation(cmd, node, "proxy.proxy-status.identity", ""); /* https://tools.ietf.org/html/rfc8941#section-3.3.4 */ static const char *tfirst = "ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz*"; static const char *tchars = "0123456789ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz!#$%&'*+-.^_`|~:/"; const char *s = node->data.scalar; size_t slen = strlen(s); for (size_t i = 0; i < slen; ++i) { unsigned char b = s[i]; if (b < 0x20 || b > 0x7E) { h2o_configurator_errprintf(cmd, node, "the identity must only consist of printable ASCII characters"); return -1; } } if (s[0] != '\0' && strchr(tfirst, s[0]) != NULL && strspn(s, tchars) == slen) { /* sf-token */ ctx->globalconf->proxy_status_identity = h2o_strdup(NULL, s, slen); } else { /* sf-string */ ctx->globalconf->proxy_status_identity = h2o_encode_sf_string(NULL, s, slen); } return 0; } static int on_config_tunnel(h2o_configurator_command_t *cmd, h2o_configurator_context_t *ctx, yoml_t *node) { struct proxy_configurator_t *self = (void *)cmd->configurator; ssize_t ret = h2o_configurator_get_one_of(cmd, node, "OFF,ON"); if (ret == -1) return -1; self->vars->conf.tunnel_enabled = (int)ret; return 0; } static SSL_CTX *create_ssl_ctx(void) { long options; SSL_CTX *ctx = SSL_CTX_new(SSLv23_client_method()); options = SSL_CTX_get_options(ctx) | SSL_OP_NO_SSLv2 | SSL_OP_NO_SSLv3; #ifdef SSL_OP_NO_RENEGOTIATION /* introduced in openssl 1.1.0h */ options |= SSL_OP_NO_RENEGOTIATION; #endif SSL_CTX_set_options(ctx, options); SSL_CTX_set_session_id_context(ctx, H2O_SESSID_CTX, H2O_SESSID_CTX_LEN); SSL_CTX_set_session_cache_mode(ctx, SSL_SESS_CACHE_CLIENT | SSL_SESS_CACHE_NO_INTERNAL_STORE); SSL_CTX_sess_set_new_cb(ctx, h2o_socket_ssl_new_session_cb); return ctx; } static h2o_cache_t *create_ssl_session_cache(size_t capacity, uint64_t duration) { return h2o_cache_create(H2O_CACHE_FLAG_MULTITHREADED, capacity, duration, h2o_socket_ssl_destroy_session_cache_entry); } static void update_ssl_ctx(SSL_CTX **ctx, X509_STORE *cert_store, int verify_mode, h2o_cache_t **session_cache) { assert(*ctx != NULL); /* inherit the properties that weren't specified */ if (cert_store == NULL) cert_store = SSL_CTX_get_cert_store(*ctx); X509_STORE_up_ref(cert_store); if (verify_mode == -1) verify_mode = SSL_CTX_get_verify_mode(*ctx); h2o_cache_t *new_session_cache; if (session_cache == NULL) { h2o_cache_t *current = h2o_socket_ssl_get_session_cache(*ctx); new_session_cache = current == NULL ? NULL : create_ssl_session_cache(h2o_cache_get_capacity(current), h2o_cache_get_duration(current)); } else { new_session_cache = *session_cache; } /* free the existing context */ if (*ctx != NULL) SSL_CTX_free(*ctx); /* create new ctx */ *ctx = create_ssl_ctx(); SSL_CTX_set_session_id_context(*ctx, H2O_SESSID_CTX, H2O_SESSID_CTX_LEN); SSL_CTX_set_cert_store(*ctx, cert_store); SSL_CTX_set_verify(*ctx, verify_mode, NULL); if (new_session_cache != NULL) h2o_socket_ssl_set_session_cache(*ctx, new_session_cache); } static int on_config_ssl_verify_peer(h2o_configurator_command_t *cmd, h2o_configurator_context_t *ctx, yoml_t *node) { struct proxy_configurator_t *self = (void *)cmd->configurator; ssize_t ret = h2o_configurator_get_one_of(cmd, node, "OFF,ON"); if (ret == -1) return -1; update_ssl_ctx(&self->vars->ssl_ctx, NULL, ret != 0 ? SSL_VERIFY_PEER | SSL_VERIFY_FAIL_IF_NO_PEER_CERT : SSL_VERIFY_NONE, NULL); return 0; } static int on_config_ssl_cafile(h2o_configurator_command_t *cmd, h2o_configurator_context_t *ctx, yoml_t *node) { struct proxy_configurator_t *self = (void *)cmd->configurator; X509_STORE *store = X509_STORE_new(); int ret = -1; if (X509_STORE_load_locations(store, node->data.scalar, NULL) == 1) { update_ssl_ctx(&self->vars->ssl_ctx, store, -1, NULL); ret = 0; } else { h2o_configurator_errprintf(cmd, node, "failed to load certificates file:%s", node->data.scalar); ERR_print_errors_fp(stderr); } X509_STORE_free(store); return ret; } static int on_config_ssl_session_cache(h2o_configurator_command_t *cmd, h2o_configurator_context_t *ctx, yoml_t *node) { struct proxy_configurator_t *self = (void *)cmd->configurator; size_t capacity = 0; uint64_t duration = 0; h2o_cache_t *current_cache = h2o_socket_ssl_get_session_cache(self->vars->ssl_ctx); switch (node->type) { case YOML_TYPE_SCALAR: if (strcasecmp(node->data.scalar, "OFF") == 0) { if (current_cache != NULL) { /* set the cache NULL */ h2o_cache_t *empty_cache = NULL; update_ssl_ctx(&self->vars->ssl_ctx, NULL, -1, &empty_cache); } return 0; } else if (strcasecmp(node->data.scalar, "ON") == 0) { /* use default values */ capacity = H2O_DEFAULT_PROXY_SSL_SESSION_CACHE_CAPACITY; duration = H2O_DEFAULT_PROXY_SSL_SESSION_CACHE_DURATION; } else { h2o_configurator_errprintf(cmd, node, "scalar argument must be either of: `OFF`, `ON`"); return -1; } break; case YOML_TYPE_MAPPING: { yoml_t **capacity_node, **lifetime_node; if (h2o_configurator_parse_mapping(cmd, node, "capacity:*,lifetime:*", NULL, &capacity_node, &lifetime_node) != 0) return -1; if (h2o_configurator_scanf(cmd, *capacity_node, "%zu", &capacity) != 0) return -1; if (capacity == 0) { h2o_configurator_errprintf(cmd, *capacity_node, "capacity must be greater than zero"); return -1; } unsigned lifetime = 0; if (h2o_configurator_scanf(cmd, *lifetime_node, "%u", &lifetime) != 0) return -1; if (lifetime == 0) { h2o_configurator_errprintf(cmd, *lifetime_node, "lifetime must be greater than zero"); return -1; } duration = (uint64_t)lifetime * 1000; } break; default: h2o_configurator_errprintf(cmd, node, "node must be a scalar or a mapping"); return -1; } if (current_cache != NULL) { size_t current_capacity = h2o_cache_get_capacity(current_cache); uint64_t current_duration = h2o_cache_get_duration(current_cache); if (capacity == current_capacity && duration == current_duration) { /* parameters aren't changed, so reuse it */ return 0; } } h2o_cache_t *new_cache = create_ssl_session_cache(capacity, duration); update_ssl_ctx(&self->vars->ssl_ctx, NULL, -1, &new_cache); return 0; } static h2o_socketpool_target_t *parse_backend(h2o_configurator_command_t *cmd, yoml_t *backend) { yoml_t **url_node; h2o_socketpool_target_conf_t lb_per_target_conf = {0}; /* default weight of each target */ switch (backend->type) { case YOML_TYPE_SCALAR: url_node = &backend; break; case YOML_TYPE_MAPPING: { yoml_t **weight_node; if (h2o_configurator_parse_mapping(cmd, backend, "url:s", "weight:*", &url_node, &weight_node) != 0) return NULL; if (weight_node != NULL) { unsigned weight; if (h2o_configurator_scanf(cmd, *weight_node, "%u", &weight) != 0) return NULL; if (!(1 <= weight && weight <= H2O_SOCKETPOOL_TARGET_MAX_WEIGHT)) { h2o_configurator_errprintf(cmd, *weight_node, "weight must be an integer in range 1 - 256"); return NULL; } lb_per_target_conf.weight_m1 = weight - 1; } } break; default: h2o_configurator_errprintf(cmd, backend, "items of arguments passed to proxy.reverse.url must be either a scalar or a mapping"); return NULL; } h2o_url_t url; if (h2o_url_parse((*url_node)->data.scalar, SIZE_MAX, &url) != 0) { h2o_configurator_errprintf(cmd, *url_node, "failed to parse URL: %s\n", (*url_node)->data.scalar); return NULL; } return h2o_socketpool_create_target(&url, &lb_per_target_conf); } static int on_config_reverse_url(h2o_configurator_command_t *cmd, h2o_configurator_context_t *ctx, yoml_t *node) { struct proxy_configurator_t *self = (void *)cmd->configurator; yoml_t **backends, **balancer_conf = NULL; size_t i, num_backends = 0; h2o_balancer_t *balancer = NULL; /* collect the nodes */ switch (node->type) { case YOML_TYPE_SCALAR: backends = &node; num_backends = 1; break; case YOML_TYPE_SEQUENCE: backends = node->data.sequence.elements; num_backends = node->data.sequence.size; break; case YOML_TYPE_MAPPING: if (h2o_configurator_parse_mapping(cmd, node, "backends:*", "balancer:s", &backends, &balancer_conf) != 0) return -1; switch ((*backends)->type) { case YOML_TYPE_SCALAR: num_backends = 1; break; case YOML_TYPE_SEQUENCE: num_backends = (*backends)->data.sequence.size; backends = (*backends)->data.sequence.elements; break; default: h2o_configurator_errprintf(cmd, *backends, "value for the `backends` property must be either a scalar or a sequence"); return -1; } break; default: h2o_fatal("unexpected node type"); return -1; } if (num_backends == 0) { h2o_configurator_errprintf(cmd, node, "at least one backend url must be set"); return -1; } /* determine the balancer */ if (balancer_conf != NULL) { if (strcmp((*balancer_conf)->data.scalar, "round-robin") == 0) { balancer = h2o_balancer_create_rr(); } else if (strcmp((*balancer_conf)->data.scalar, "least-conn") == 0) { balancer = h2o_balancer_create_lc(); } else { h2o_configurator_errprintf( cmd, node, "specified balancer is not supported. Currently supported ones are: round-robin, least-conn"); return -1; } } /* parse the backends */ h2o_socketpool_target_t **targets = alloca(sizeof(*targets) * num_backends); for (i = 0; i != num_backends; ++i) if ((targets[i] = parse_backend(cmd, backends[i])) == NULL) return -1; /* check consistency */ if (self->vars->conf.keepalive_timeout != 0 && self->vars->conf.use_proxy_protocol) { h2o_configurator_errprintf(cmd, node, "please either set `proxy.use-proxy-protocol` to `OFF` or disable keep-alive by " "setting `proxy.timeout.keepalive` to zero; the features are mutually exclusive"); return -1; } if (self->vars->conf.protocol_ratio.http2 + self->vars->conf.protocol_ratio.http3 > 100) { h2o_configurator_errprintf(cmd, node, "sum of http2.ratio and http3.ratio cannot be greater than 100"); return -1; } if (self->vars->conf.http2.force_cleartext && self->vars->conf.protocol_ratio.http2 != 100) { h2o_configurator_errprintf( cmd, node, "when `proxy.http2.force-cleartext` is `ON`, `proxy.http2.ratio` must be set to `100` (percent)"); return -1; } if (self->vars->conf.headers_cmds != NULL) h2o_mem_addref_shared(self->vars->conf.headers_cmds); h2o_socketpool_t *sockpool = h2o_mem_alloc(sizeof(*sockpool)); memset(sockpool, 0, sizeof(*sockpool)); /* init socket pool */ h2o_socketpool_init_specific(sockpool, SIZE_MAX /* FIXME */, targets, num_backends, balancer); h2o_socketpool_set_timeout(sockpool, self->vars->conf.keepalive_timeout); h2o_socketpool_set_ssl_ctx(sockpool, self->vars->ssl_ctx); h2o_proxy_register_reverse_proxy(ctx->pathconf, &self->vars->conf, sockpool); return 0; } static int on_config_connect_proxy(h2o_configurator_command_t *cmd, h2o_configurator_context_t *ctx, yoml_t *node) { struct proxy_configurator_t *self = (void *)cmd->configurator; /* Convert list of ACLs to internal representation; input is a sequence of: [+-]address(?::port|) */ h2o_connect_acl_entry_t acl_entries[node->data.sequence.size]; for (size_t i = 0; i < node->data.sequence.size; ++i) { if (node->data.sequence.elements[i]->type != YOML_TYPE_SCALAR) { h2o_configurator_errprintf(cmd, node->data.sequence.elements[i], "ACL entry must be a scalar"); return -1; } const char *err = h2o_connect_parse_acl(acl_entries + i, node->data.sequence.elements[i]->data.scalar); if (err != NULL) { h2o_configurator_errprintf(cmd, node->data.sequence.elements[i], "%s", err); return -1; } } h2o_connect_register(ctx->pathconf, &self->vars->conf, acl_entries, node->data.sequence.size); return 0; } static int on_config_emit_x_forwarded_headers(h2o_configurator_command_t *cmd, h2o_configurator_context_t *ctx, yoml_t *node) { ssize_t ret = h2o_configurator_get_one_of(cmd, node, "OFF,ON"); if (ret == -1) return -1; ctx->globalconf->proxy.emit_x_forwarded_headers = (int)ret; return 0; } static int on_config_emit_via_header(h2o_configurator_command_t *cmd, h2o_configurator_context_t *ctx, yoml_t *node) { ssize_t ret = h2o_configurator_get_one_of(cmd, node, "OFF,ON"); if (ret == -1) return -1; ctx->globalconf->proxy.emit_via_header = (int)ret; return 0; } static int on_config_emit_missing_date_header(h2o_configurator_command_t *cmd, h2o_configurator_context_t *ctx, yoml_t *node) { ssize_t ret = h2o_configurator_get_one_of(cmd, node, "OFF,ON"); if (ret == -1) return -1; ctx->globalconf->proxy.emit_missing_date_header = (int)ret; return 0; } static int on_config_max_spare_pipes(h2o_configurator_command_t *cmd, h2o_configurator_context_t *ctx, yoml_t *node) { if (h2o_configurator_scanf(cmd, node, "%zu", &ctx->globalconf->proxy.max_spare_pipes) != 0) return -1; if (ctx->globalconf->proxy.max_spare_pipes == 0) { h2o_configurator_errprintf(cmd, node, "proxy.buffer_size must be a positive value"); return -1; } return 0; } static int on_config_zerocopy(h2o_configurator_command_t *cmd, h2o_configurator_context_t *ctx, yoml_t *node) { ssize_t ret = h2o_configurator_get_one_of(cmd, node, "OFF,ON,ALWAYS"); switch (ret) { case 0: ctx->globalconf->proxy.zerocopy = H2O_PROXY_ZEROCOPY_DISABLED; break; case 1: ctx->globalconf->proxy.zerocopy = H2O_PROXY_ZEROCOPY_ENABLED; break; case 2: ctx->globalconf->proxy.zerocopy = H2O_PROXY_ZEROCOPY_ALWAYS; break; default: return -1; } return 0; } static int on_config_preserve_x_forwarded_proto(h2o_configurator_command_t *cmd, h2o_configurator_context_t *ctx, yoml_t *node) { ssize_t ret = h2o_configurator_get_one_of(cmd, node, "OFF,ON"); if (ret == -1) return -1; ctx->globalconf->proxy.preserve_x_forwarded_proto = (int)ret; return 0; } static int on_config_max_buffer_size(h2o_configurator_command_t *cmd, h2o_configurator_context_t *ctx, yoml_t *node) { struct proxy_configurator_t *self = (void *)cmd->configurator; if (h2o_configurator_scanf(cmd, node, "%zu", &self->vars->conf.max_buffer_size) != 0) return -1; if (self->vars->conf.max_buffer_size == 0) { h2o_configurator_errprintf(cmd, node, "proxy.buffer_size must be a positive value"); return -1; } return 0; } static int on_config_http2_max_concurrent_streams(h2o_configurator_command_t *cmd, h2o_configurator_context_t *ctx, yoml_t *node) { warn_deprecation(cmd, node, "proxy.http2.max-concurrent-streams", " (notice `-` and `_`)"); struct proxy_configurator_t *self = (void *)cmd->configurator; return h2o_configurator_scanf(cmd, node, "%u", &self->vars->conf.http2.max_concurrent_streams); } static int on_config_http2_force_cleartext(h2o_configurator_command_t *cmd, h2o_configurator_context_t *ctx, yoml_t *node) { struct proxy_configurator_t *self = (void *)cmd->configurator; ssize_t ret = h2o_configurator_get_one_of(cmd, node, "OFF,ON"); if (ret < 0) return -1; self->vars->conf.http2.force_cleartext = (unsigned)ret; return 0; } static int on_config_http2_ratio(h2o_configurator_command_t *cmd, h2o_configurator_context_t *ctx, yoml_t *node) { struct proxy_configurator_t *self = (void *)cmd->configurator; int ret = h2o_configurator_scanf(cmd, node, "%" SCNd8, &self->vars->conf.protocol_ratio.http2); if (ret < 0) return ret; if (self->vars->conf.protocol_ratio.http2 < 0 || 100 < self->vars->conf.protocol_ratio.http2) { h2o_configurator_errprintf(cmd, node, "proxy.http2.ratio must be between 0 and 100"); return -1; } return 0; } static int on_config_http3_ratio(h2o_configurator_command_t *cmd, h2o_configurator_context_t *ctx, yoml_t *node) { struct proxy_configurator_t *self = (void *)cmd->configurator; int ret = h2o_configurator_scanf(cmd, node, "%" SCNd8, &self->vars->conf.protocol_ratio.http3); if (ret < 0) return ret; if (self->vars->conf.protocol_ratio.http3 < 0 || 100 < self->vars->conf.protocol_ratio.http3) { h2o_configurator_errprintf(cmd, node, "proxy.http3.ratio must be between 0 and 100"); return -1; } return 0; } static int on_config_forward_close_connection(h2o_configurator_command_t *cmd, h2o_configurator_context_t *ctx, yoml_t *node) { struct proxy_configurator_t *self = (void *)cmd->configurator; ssize_t ret = h2o_configurator_get_one_of(cmd, node, "OFF,ON"); if (ret == -1) return -1; self->vars->conf.forward_close_connection = (int)ret; return 0; } static int on_config_enter(h2o_configurator_t *_self, h2o_configurator_context_t *ctx, yoml_t *node) { struct proxy_configurator_t *self = (void *)_self; memcpy(self->vars + 1, self->vars, sizeof(*self->vars)); if (self->vars[1].conf.headers_cmds != NULL) h2o_mem_addref_shared(self->vars[1].conf.headers_cmds); ++self->vars; self->connect_timeout_set = 0; self->first_byte_timeout_set = 0; if (ctx->pathconf == NULL && ctx->hostconf == NULL) { /* is global conf, setup the default SSL context */ self->vars->ssl_ctx = create_ssl_ctx(); char *ca_bundle = h2o_configurator_get_cmd_path("share/h2o/ca-bundle.crt"); if (SSL_CTX_load_verify_locations(self->vars->ssl_ctx, ca_bundle, NULL) != 1) h2o_error_printf("Warning: failed to load the default certificates file at %s. Proxying to HTTPS servers may fail.\n", ca_bundle); free(ca_bundle); SSL_CTX_set_verify(self->vars->ssl_ctx, SSL_VERIFY_PEER | SSL_VERIFY_FAIL_IF_NO_PEER_CERT, NULL); h2o_cache_t *ssl_session_cache = create_ssl_session_cache(H2O_DEFAULT_PROXY_SSL_SESSION_CACHE_CAPACITY, H2O_DEFAULT_PROXY_SSL_SESSION_CACHE_DURATION); h2o_socket_ssl_set_session_cache(self->vars->ssl_ctx, ssl_session_cache); } else { SSL_CTX_up_ref(self->vars->ssl_ctx); } return 0; } static int on_config_exit(h2o_configurator_t *_self, h2o_configurator_context_t *ctx, yoml_t *node) { struct proxy_configurator_t *self = (void *)_self; if (ctx->pathconf == NULL && ctx->hostconf == NULL) { /* is global conf */ ctx->globalconf->proxy.io_timeout = self->vars->conf.io_timeout; ctx->globalconf->proxy.connect_timeout = self->vars->conf.connect_timeout; ctx->globalconf->proxy.first_byte_timeout = self->vars->conf.first_byte_timeout; ctx->globalconf->proxy.keepalive_timeout = self->vars->conf.keepalive_timeout; ctx->globalconf->proxy.max_buffer_size = self->vars->conf.max_buffer_size; ctx->globalconf->proxy.http2.max_concurrent_streams = self->vars->conf.http2.max_concurrent_streams; ctx->globalconf->proxy.protocol_ratio.http2 = self->vars->conf.protocol_ratio.http2; ctx->globalconf->proxy.protocol_ratio.http3 = self->vars->conf.protocol_ratio.http3; h2o_socketpool_set_ssl_ctx(&ctx->globalconf->proxy.global_socketpool, self->vars->ssl_ctx); h2o_socketpool_set_timeout(&ctx->globalconf->proxy.global_socketpool, self->vars->conf.keepalive_timeout); } SSL_CTX_free(self->vars->ssl_ctx); if (self->vars->conf.headers_cmds != NULL) h2o_mem_release_shared(self->vars->conf.headers_cmds); --self->vars; return 0; } static h2o_headers_command_t **get_headers_commands(h2o_configurator_t *_self) { struct proxy_configurator_t *self = (void *)_self; return &self->vars->conf.headers_cmds; } void h2o_proxy_register_configurator(h2o_globalconf_t *conf) { struct proxy_configurator_t *c = (void *)h2o_configurator_create(conf, sizeof(*c)); /* set default vars */ c->vars = c->_vars_stack; c->vars->conf = (h2o_proxy_config_vars_t){ .io_timeout = H2O_DEFAULT_PROXY_IO_TIMEOUT, .connect_timeout = H2O_DEFAULT_PROXY_IO_TIMEOUT, .first_byte_timeout = H2O_DEFAULT_PROXY_IO_TIMEOUT, .happy_eyeballs = { .name_resolution_delay = H2O_DEFAULT_HAPPY_EYEBALLS_NAME_RESOLUTION_DELAY, .connection_attempt_delay = H2O_DEFAULT_HAPPY_EYEBALLS_CONNECTION_ATTEMPT_DELAY, }, .tunnel_enabled = 0, /* experimental support for tunneling (e.g., CONNECT, websocket) is disabled by default */ .max_buffer_size = SIZE_MAX, .http2.max_concurrent_streams = H2O_DEFAULT_PROXY_HTTP2_MAX_CONCURRENT_STREAMS, .protocol_ratio.http2 = -1, .keepalive_timeout = h2o_socketpool_get_timeout(&conf->proxy.global_socketpool), }; /* setup handlers */ c->super.enter = on_config_enter; c->super.exit = on_config_exit; h2o_configurator_define_command(&c->super, "proxy.reverse.url", H2O_CONFIGURATOR_FLAG_PATH | H2O_CONFIGURATOR_FLAG_EXPECT_SCALAR | H2O_CONFIGURATOR_FLAG_EXPECT_SEQUENCE | H2O_CONFIGURATOR_FLAG_EXPECT_MAPPING | H2O_CONFIGURATOR_FLAG_DEFERRED, on_config_reverse_url); h2o_configurator_define_command(&c->super, "proxy.connect", H2O_CONFIGURATOR_FLAG_PATH | H2O_CONFIGURATOR_FLAG_EXPECT_SEQUENCE | H2O_CONFIGURATOR_FLAG_DEFERRED, on_config_connect_proxy); h2o_configurator_define_command(&c->super, "proxy.connect.emit-proxy-status", H2O_CONFIGURATOR_FLAG_ALL_LEVELS | H2O_CONFIGURATOR_FLAG_EXPECT_SCALAR, on_config_connect_proxy_status); h2o_configurator_define_command(&c->super, "proxy.connect.proxy-status", H2O_CONFIGURATOR_FLAG_ALL_LEVELS | H2O_CONFIGURATOR_FLAG_EXPECT_SCALAR, on_config_connect_proxy_status); h2o_configurator_define_command(&c->super, "proxy.proxy-status.identity", H2O_CONFIGURATOR_FLAG_GLOBAL | H2O_CONFIGURATOR_FLAG_EXPECT_SCALAR, on_config_proxy_status_identity); h2o_configurator_define_command(&c->super, "proxy-status.identity", H2O_CONFIGURATOR_FLAG_GLOBAL | H2O_CONFIGURATOR_FLAG_EXPECT_SCALAR, on_config_proxy_status_identity); h2o_configurator_define_command(&c->super, "proxy.preserve-host", H2O_CONFIGURATOR_FLAG_ALL_LEVELS | H2O_CONFIGURATOR_FLAG_EXPECT_SCALAR, on_config_preserve_host); h2o_configurator_define_command(&c->super, "proxy.proxy-protocol", H2O_CONFIGURATOR_FLAG_ALL_LEVELS | H2O_CONFIGURATOR_FLAG_EXPECT_SCALAR, on_config_proxy_protocol); h2o_configurator_define_command(&c->super, "proxy.timeout.io", H2O_CONFIGURATOR_FLAG_ALL_LEVELS | H2O_CONFIGURATOR_FLAG_EXPECT_SCALAR, on_config_timeout_io); h2o_configurator_define_command(&c->super, "proxy.timeout.connect", H2O_CONFIGURATOR_FLAG_ALL_LEVELS | H2O_CONFIGURATOR_FLAG_EXPECT_SCALAR, on_config_timeout_connect); h2o_configurator_define_command(&c->super, "proxy.timeout.first_byte", H2O_CONFIGURATOR_FLAG_ALL_LEVELS | H2O_CONFIGURATOR_FLAG_EXPECT_SCALAR, on_config_timeout_first_byte); h2o_configurator_define_command(&c->super, "proxy.timeout.keepalive", H2O_CONFIGURATOR_FLAG_ALL_LEVELS | H2O_CONFIGURATOR_FLAG_EXPECT_SCALAR, on_config_timeout_keepalive); h2o_configurator_define_command(&c->super, "proxy.happy-eyeballs.name-resolution-delay", H2O_CONFIGURATOR_FLAG_ALL_LEVELS | H2O_CONFIGURATOR_FLAG_EXPECT_SCALAR, on_config_happy_eyeballs_name_resolution_delay); h2o_configurator_define_command(&c->super, "proxy.happy-eyeballs.connection-attempt-delay", H2O_CONFIGURATOR_FLAG_ALL_LEVELS | H2O_CONFIGURATOR_FLAG_EXPECT_SCALAR, on_config_happy_eyeballs_connection_attempt_delay); h2o_configurator_define_command(&c->super, "proxy.tunnel", H2O_CONFIGURATOR_FLAG_ALL_LEVELS | H2O_CONFIGURATOR_FLAG_EXPECT_SCALAR, on_config_tunnel); h2o_configurator_define_command(&c->super, "proxy.ssl.verify-peer", H2O_CONFIGURATOR_FLAG_ALL_LEVELS | H2O_CONFIGURATOR_FLAG_EXPECT_SCALAR, on_config_ssl_verify_peer); h2o_configurator_define_command(&c->super, "proxy.ssl.cafile", H2O_CONFIGURATOR_FLAG_ALL_LEVELS | H2O_CONFIGURATOR_FLAG_EXPECT_SCALAR, on_config_ssl_cafile); h2o_configurator_define_command(&c->super, "proxy.ssl.session-cache", H2O_CONFIGURATOR_FLAG_ALL_LEVELS, on_config_ssl_session_cache); h2o_configurator_define_command(&c->super, "proxy.preserve-x-forwarded-proto", H2O_CONFIGURATOR_FLAG_GLOBAL | H2O_CONFIGURATOR_FLAG_EXPECT_SCALAR, on_config_preserve_x_forwarded_proto); h2o_configurator_define_command(&c->super, "proxy.emit-x-forwarded-headers", H2O_CONFIGURATOR_FLAG_GLOBAL | H2O_CONFIGURATOR_FLAG_EXPECT_SCALAR, on_config_emit_x_forwarded_headers); h2o_configurator_define_command(&c->super, "proxy.emit-via-header", H2O_CONFIGURATOR_FLAG_GLOBAL | H2O_CONFIGURATOR_FLAG_EXPECT_SCALAR, on_config_emit_via_header); h2o_configurator_define_command(&c->super, "proxy.emit-missing-date-header", H2O_CONFIGURATOR_FLAG_GLOBAL | H2O_CONFIGURATOR_FLAG_EXPECT_SCALAR, on_config_emit_missing_date_header); h2o_configurator_define_command(&c->super, "proxy.zerocopy", H2O_CONFIGURATOR_FLAG_GLOBAL | H2O_CONFIGURATOR_FLAG_EXPECT_SCALAR, on_config_zerocopy); h2o_configurator_define_command(&c->super, "proxy.max-spare-pipes", H2O_CONFIGURATOR_FLAG_GLOBAL | H2O_CONFIGURATOR_FLAG_EXPECT_SCALAR, on_config_max_spare_pipes); h2o_configurator_define_headers_commands(conf, &c->super, "proxy.header", get_headers_commands); h2o_configurator_define_command(&c->super, "proxy.max-buffer-size", H2O_CONFIGURATOR_FLAG_ALL_LEVELS | H2O_CONFIGURATOR_FLAG_EXPECT_SCALAR, on_config_max_buffer_size); h2o_configurator_define_command(&c->super, "proxy.http2.max-concurrent-streams", H2O_CONFIGURATOR_FLAG_ALL_LEVELS | H2O_CONFIGURATOR_FLAG_EXPECT_SCALAR, on_config_http2_max_concurrent_streams); h2o_configurator_define_command(&c->super, "proxy.http2.max-concurrent_streams", H2O_CONFIGURATOR_FLAG_ALL_LEVELS | H2O_CONFIGURATOR_FLAG_EXPECT_SCALAR, on_config_http2_max_concurrent_streams); h2o_configurator_define_command(&c->super, "proxy.http2.force-cleartext", H2O_CONFIGURATOR_FLAG_ALL_LEVELS | H2O_CONFIGURATOR_FLAG_EXPECT_SCALAR, on_config_http2_force_cleartext); h2o_configurator_define_command(&c->super, "proxy.http2.ratio", H2O_CONFIGURATOR_FLAG_ALL_LEVELS | H2O_CONFIGURATOR_FLAG_EXPECT_SCALAR, on_config_http2_ratio); h2o_configurator_define_command(&c->super, "proxy.http3.ratio", H2O_CONFIGURATOR_FLAG_ALL_LEVELS | H2O_CONFIGURATOR_FLAG_EXPECT_SCALAR, on_config_http3_ratio); h2o_configurator_define_command(&c->super, "proxy.forward.close-connection", H2O_CONFIGURATOR_FLAG_ALL_LEVELS | H2O_CONFIGURATOR_FLAG_EXPECT_SCALAR, on_config_forward_close_connection); }