diff options
Diffstat (limited to 'modules/http2/h2_config.c')
| -rw-r--r-- | modules/http2/h2_config.c | 943 |
1 files changed, 943 insertions, 0 deletions
diff --git a/modules/http2/h2_config.c b/modules/http2/h2_config.c new file mode 100644 index 0000000..eea4be2 --- /dev/null +++ b/modules/http2/h2_config.c @@ -0,0 +1,943 @@ +/* Licensed to the Apache Software Foundation (ASF) under one or more + * contributor license agreements. See the NOTICE file distributed with + * this work for additional information regarding copyright ownership. + * The ASF licenses this file to You under the Apache License, Version 2.0 + * (the "License"); you may not use this file except in compliance with + * the License. You may obtain a copy of the License at + * + * http://www.apache.org/licenses/LICENSE-2.0 + * + * Unless required by applicable law or agreed to in writing, software + * distributed under the License is distributed on an "AS IS" BASIS, + * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. + * See the License for the specific language governing permissions and + * limitations under the License. + */ + +#include <assert.h> + +#include <apr_hash.h> +#include <apr_lib.h> + +#include <httpd.h> +#include <http_core.h> +#include <http_config.h> +#include <http_log.h> +#include <http_vhost.h> + +#include <ap_mpm.h> + +#include <apr_strings.h> + +#include "h2.h" +#include "h2_conn_ctx.h" +#include "h2_c1.h" +#include "h2_config.h" +#include "h2_protocol.h" +#include "h2_private.h" + +#define DEF_VAL (-1) + +#define H2_CONFIG_GET(a, b, n) \ + (((a)->n == DEF_VAL)? (b) : (a))->n + +#define H2_CONFIG_SET(a, n, v) \ + ((a)->n = v) + +#define CONFIG_CMD_SET(cmd,dir,var,val) \ + h2_config_seti(((cmd)->path? (dir) : NULL), h2_config_sget((cmd)->server), var, val) + +#define CONFIG_CMD_SET64(cmd,dir,var,val) \ + h2_config_seti64(((cmd)->path? (dir) : NULL), h2_config_sget((cmd)->server), var, val) + +/* Apache httpd module configuration for h2. */ +typedef struct h2_config { + const char *name; + int h2_max_streams; /* max concurrent # streams (http2) */ + int h2_window_size; /* stream window size (http2) */ + int min_workers; /* min # of worker threads/child */ + int max_workers; /* max # of worker threads/child */ + apr_interval_time_t idle_limit; /* max duration for idle workers */ + int stream_max_mem_size; /* max # bytes held in memory/stream */ + int h2_direct; /* if mod_h2 is active directly */ + int modern_tls_only; /* Accept only modern TLS in HTTP/2 connections */ + int h2_upgrade; /* Allow HTTP/1 upgrade to h2/h2c */ + apr_int64_t tls_warmup_size; /* Amount of TLS data to send before going full write size */ + int tls_cooldown_secs; /* Seconds of idle time before going back to small TLS records */ + int h2_push; /* if HTTP/2 server push is enabled */ + struct apr_hash_t *priorities; /* map of content-type to h2_priority records */ + + int push_diary_size; /* # of entries in push diary */ + int copy_files; /* if files shall be copied vs setaside on output */ + apr_array_header_t *push_list; /* list of h2_push_res configurations */ + int early_hints; /* support status code 103 */ + int padding_bits; + int padding_always; + int output_buffered; + apr_interval_time_t stream_timeout;/* beam timeout */ +} h2_config; + +typedef struct h2_dir_config { + const char *name; + int h2_upgrade; /* Allow HTTP/1 upgrade to h2/h2c */ + int h2_push; /* if HTTP/2 server push is enabled */ + apr_array_header_t *push_list; /* list of h2_push_res configurations */ + int early_hints; /* support status code 103 */ + apr_interval_time_t stream_timeout;/* beam timeout */ +} h2_dir_config; + + +static h2_config defconf = { + "default", + 100, /* max_streams */ + H2_INITIAL_WINDOW_SIZE, /* window_size */ + -1, /* min workers */ + -1, /* max workers */ + apr_time_from_sec(10 * 60), /* workers idle limit */ + 32 * 1024, /* stream max mem size */ + -1, /* h2 direct mode */ + 1, /* modern TLS only */ + -1, /* HTTP/1 Upgrade support */ + 1024*1024, /* TLS warmup size */ + 1, /* TLS cooldown secs */ + 1, /* HTTP/2 server push enabled */ + NULL, /* map of content-type to priorities */ + 256, /* push diary size */ + 0, /* copy files across threads */ + NULL, /* push list */ + 0, /* early hints, http status 103 */ + 0, /* padding bits */ + 1, /* padding always */ + 1, /* stream output buffered */ + -1, /* beam timeout */ +}; + +static h2_dir_config defdconf = { + "default", + -1, /* HTTP/1 Upgrade support */ + -1, /* HTTP/2 server push enabled */ + NULL, /* push list */ + -1, /* early hints, http status 103 */ + -1, /* beam timeout */ +}; + +void h2_config_init(apr_pool_t *pool) +{ + (void)pool; +} + +void *h2_config_create_svr(apr_pool_t *pool, server_rec *s) +{ + h2_config *conf = (h2_config *)apr_pcalloc(pool, sizeof(h2_config)); + char *name = apr_pstrcat(pool, "srv[", s->defn_name, "]", NULL); + + conf->name = name; + conf->h2_max_streams = DEF_VAL; + conf->h2_window_size = DEF_VAL; + conf->min_workers = DEF_VAL; + conf->max_workers = DEF_VAL; + conf->idle_limit = DEF_VAL; + conf->stream_max_mem_size = DEF_VAL; + conf->h2_direct = DEF_VAL; + conf->modern_tls_only = DEF_VAL; + conf->h2_upgrade = DEF_VAL; + conf->tls_warmup_size = DEF_VAL; + conf->tls_cooldown_secs = DEF_VAL; + conf->h2_push = DEF_VAL; + conf->priorities = NULL; + conf->push_diary_size = DEF_VAL; + conf->copy_files = DEF_VAL; + conf->push_list = NULL; + conf->early_hints = DEF_VAL; + conf->padding_bits = DEF_VAL; + conf->padding_always = DEF_VAL; + conf->output_buffered = DEF_VAL; + conf->stream_timeout = DEF_VAL; + return conf; +} + +static void *h2_config_merge(apr_pool_t *pool, void *basev, void *addv) +{ + h2_config *base = (h2_config *)basev; + h2_config *add = (h2_config *)addv; + h2_config *n = (h2_config *)apr_pcalloc(pool, sizeof(h2_config)); + char *name = apr_pstrcat(pool, "merged[", add->name, ", ", base->name, "]", NULL); + n->name = name; + + n->h2_max_streams = H2_CONFIG_GET(add, base, h2_max_streams); + n->h2_window_size = H2_CONFIG_GET(add, base, h2_window_size); + n->min_workers = H2_CONFIG_GET(add, base, min_workers); + n->max_workers = H2_CONFIG_GET(add, base, max_workers); + n->idle_limit = H2_CONFIG_GET(add, base, idle_limit); + n->stream_max_mem_size = H2_CONFIG_GET(add, base, stream_max_mem_size); + n->h2_direct = H2_CONFIG_GET(add, base, h2_direct); + n->modern_tls_only = H2_CONFIG_GET(add, base, modern_tls_only); + n->h2_upgrade = H2_CONFIG_GET(add, base, h2_upgrade); + n->tls_warmup_size = H2_CONFIG_GET(add, base, tls_warmup_size); + n->tls_cooldown_secs = H2_CONFIG_GET(add, base, tls_cooldown_secs); + n->h2_push = H2_CONFIG_GET(add, base, h2_push); + if (add->priorities && base->priorities) { + n->priorities = apr_hash_overlay(pool, add->priorities, base->priorities); + } + else { + n->priorities = add->priorities? add->priorities : base->priorities; + } + n->push_diary_size = H2_CONFIG_GET(add, base, push_diary_size); + n->copy_files = H2_CONFIG_GET(add, base, copy_files); + n->output_buffered = H2_CONFIG_GET(add, base, output_buffered); + if (add->push_list && base->push_list) { + n->push_list = apr_array_append(pool, base->push_list, add->push_list); + } + else { + n->push_list = add->push_list? add->push_list : base->push_list; + } + n->early_hints = H2_CONFIG_GET(add, base, early_hints); + n->padding_bits = H2_CONFIG_GET(add, base, padding_bits); + n->padding_always = H2_CONFIG_GET(add, base, padding_always); + n->stream_timeout = H2_CONFIG_GET(add, base, stream_timeout); + return n; +} + +void *h2_config_merge_svr(apr_pool_t *pool, void *basev, void *addv) +{ + return h2_config_merge(pool, basev, addv); +} + +void *h2_config_create_dir(apr_pool_t *pool, char *x) +{ + h2_dir_config *conf = (h2_dir_config *)apr_pcalloc(pool, sizeof(h2_dir_config)); + const char *s = x? x : "unknown"; + char *name = apr_pstrcat(pool, "dir[", s, "]", NULL); + + conf->name = name; + conf->h2_upgrade = DEF_VAL; + conf->h2_push = DEF_VAL; + conf->early_hints = DEF_VAL; + conf->stream_timeout = DEF_VAL; + return conf; +} + +void *h2_config_merge_dir(apr_pool_t *pool, void *basev, void *addv) +{ + h2_dir_config *base = (h2_dir_config *)basev; + h2_dir_config *add = (h2_dir_config *)addv; + h2_dir_config *n = (h2_dir_config *)apr_pcalloc(pool, sizeof(h2_dir_config)); + + n->name = apr_pstrcat(pool, "merged[", add->name, ", ", base->name, "]", NULL); + n->h2_upgrade = H2_CONFIG_GET(add, base, h2_upgrade); + n->h2_push = H2_CONFIG_GET(add, base, h2_push); + if (add->push_list && base->push_list) { + n->push_list = apr_array_append(pool, base->push_list, add->push_list); + } + else { + n->push_list = add->push_list? add->push_list : base->push_list; + } + n->early_hints = H2_CONFIG_GET(add, base, early_hints); + n->stream_timeout = H2_CONFIG_GET(add, base, stream_timeout); + return n; +} + +static apr_int64_t h2_srv_config_geti64(const h2_config *conf, h2_config_var_t var) +{ + switch(var) { + case H2_CONF_MAX_STREAMS: + return H2_CONFIG_GET(conf, &defconf, h2_max_streams); + case H2_CONF_WIN_SIZE: + return H2_CONFIG_GET(conf, &defconf, h2_window_size); + case H2_CONF_MIN_WORKERS: + return H2_CONFIG_GET(conf, &defconf, min_workers); + case H2_CONF_MAX_WORKERS: + return H2_CONFIG_GET(conf, &defconf, max_workers); + case H2_CONF_MAX_WORKER_IDLE_LIMIT: + return H2_CONFIG_GET(conf, &defconf, idle_limit); + case H2_CONF_STREAM_MAX_MEM: + return H2_CONFIG_GET(conf, &defconf, stream_max_mem_size); + case H2_CONF_MODERN_TLS_ONLY: + return H2_CONFIG_GET(conf, &defconf, modern_tls_only); + case H2_CONF_UPGRADE: + return H2_CONFIG_GET(conf, &defconf, h2_upgrade); + case H2_CONF_DIRECT: + return H2_CONFIG_GET(conf, &defconf, h2_direct); + case H2_CONF_TLS_WARMUP_SIZE: + return H2_CONFIG_GET(conf, &defconf, tls_warmup_size); + case H2_CONF_TLS_COOLDOWN_SECS: + return H2_CONFIG_GET(conf, &defconf, tls_cooldown_secs); + case H2_CONF_PUSH: + return H2_CONFIG_GET(conf, &defconf, h2_push); + case H2_CONF_PUSH_DIARY_SIZE: + return H2_CONFIG_GET(conf, &defconf, push_diary_size); + case H2_CONF_COPY_FILES: + return H2_CONFIG_GET(conf, &defconf, copy_files); + case H2_CONF_EARLY_HINTS: + return H2_CONFIG_GET(conf, &defconf, early_hints); + case H2_CONF_PADDING_BITS: + return H2_CONFIG_GET(conf, &defconf, padding_bits); + case H2_CONF_PADDING_ALWAYS: + return H2_CONFIG_GET(conf, &defconf, padding_always); + case H2_CONF_OUTPUT_BUFFER: + return H2_CONFIG_GET(conf, &defconf, output_buffered); + case H2_CONF_STREAM_TIMEOUT: + return H2_CONFIG_GET(conf, &defconf, stream_timeout); + default: + return DEF_VAL; + } +} + +static void h2_srv_config_seti(h2_config *conf, h2_config_var_t var, int val) +{ + switch(var) { + case H2_CONF_MAX_STREAMS: + H2_CONFIG_SET(conf, h2_max_streams, val); + break; + case H2_CONF_WIN_SIZE: + H2_CONFIG_SET(conf, h2_window_size, val); + break; + case H2_CONF_MIN_WORKERS: + H2_CONFIG_SET(conf, min_workers, val); + break; + case H2_CONF_MAX_WORKERS: + H2_CONFIG_SET(conf, max_workers, val); + break; + case H2_CONF_STREAM_MAX_MEM: + H2_CONFIG_SET(conf, stream_max_mem_size, val); + break; + case H2_CONF_MODERN_TLS_ONLY: + H2_CONFIG_SET(conf, modern_tls_only, val); + break; + case H2_CONF_UPGRADE: + H2_CONFIG_SET(conf, h2_upgrade, val); + break; + case H2_CONF_DIRECT: + H2_CONFIG_SET(conf, h2_direct, val); + break; + case H2_CONF_TLS_WARMUP_SIZE: + H2_CONFIG_SET(conf, tls_warmup_size, val); + break; + case H2_CONF_TLS_COOLDOWN_SECS: + H2_CONFIG_SET(conf, tls_cooldown_secs, val); + break; + case H2_CONF_PUSH: + H2_CONFIG_SET(conf, h2_push, val); + break; + case H2_CONF_PUSH_DIARY_SIZE: + H2_CONFIG_SET(conf, push_diary_size, val); + break; + case H2_CONF_COPY_FILES: + H2_CONFIG_SET(conf, copy_files, val); + break; + case H2_CONF_EARLY_HINTS: + H2_CONFIG_SET(conf, early_hints, val); + break; + case H2_CONF_PADDING_BITS: + H2_CONFIG_SET(conf, padding_bits, val); + break; + case H2_CONF_PADDING_ALWAYS: + H2_CONFIG_SET(conf, padding_always, val); + break; + case H2_CONF_OUTPUT_BUFFER: + H2_CONFIG_SET(conf, output_buffered, val); + break; + default: + break; + } +} + +static void h2_srv_config_seti64(h2_config *conf, h2_config_var_t var, apr_int64_t val) +{ + switch(var) { + case H2_CONF_TLS_WARMUP_SIZE: + H2_CONFIG_SET(conf, tls_warmup_size, val); + break; + case H2_CONF_STREAM_TIMEOUT: + H2_CONFIG_SET(conf, stream_timeout, val); + break; + case H2_CONF_MAX_WORKER_IDLE_LIMIT: + H2_CONFIG_SET(conf, idle_limit, val); + break; + default: + h2_srv_config_seti(conf, var, (int)val); + break; + } +} + +static h2_config *h2_config_sget(server_rec *s) +{ + h2_config *cfg = (h2_config *)ap_get_module_config(s->module_config, + &http2_module); + ap_assert(cfg); + return cfg; +} + +static const h2_dir_config *h2_config_rget(request_rec *r) +{ + h2_dir_config *cfg = (h2_dir_config *)ap_get_module_config(r->per_dir_config, + &http2_module); + ap_assert(cfg); + return cfg; +} + +static apr_int64_t h2_dir_config_geti64(const h2_dir_config *conf, h2_config_var_t var) +{ + switch(var) { + case H2_CONF_UPGRADE: + return H2_CONFIG_GET(conf, &defdconf, h2_upgrade); + case H2_CONF_PUSH: + return H2_CONFIG_GET(conf, &defdconf, h2_push); + case H2_CONF_EARLY_HINTS: + return H2_CONFIG_GET(conf, &defdconf, early_hints); + case H2_CONF_STREAM_TIMEOUT: + return H2_CONFIG_GET(conf, &defdconf, stream_timeout); + + default: + return DEF_VAL; + } +} + +static void h2_config_seti(h2_dir_config *dconf, h2_config *conf, h2_config_var_t var, int val) +{ + int set_srv = !dconf; + if (dconf) { + switch(var) { + case H2_CONF_UPGRADE: + H2_CONFIG_SET(dconf, h2_upgrade, val); + break; + case H2_CONF_PUSH: + H2_CONFIG_SET(dconf, h2_push, val); + break; + case H2_CONF_EARLY_HINTS: + H2_CONFIG_SET(dconf, early_hints, val); + break; + default: + /* not handled in dir_conf */ + set_srv = 1; + break; + } + } + + if (set_srv) { + h2_srv_config_seti(conf, var, val); + } +} + +static void h2_config_seti64(h2_dir_config *dconf, h2_config *conf, h2_config_var_t var, apr_int64_t val) +{ + int set_srv = !dconf; + if (dconf) { + switch(var) { + case H2_CONF_STREAM_TIMEOUT: + H2_CONFIG_SET(dconf, stream_timeout, val); + break; + default: + /* not handled in dir_conf */ + set_srv = 1; + break; + } + } + + if (set_srv) { + h2_srv_config_seti64(conf, var, val); + } +} + +static const h2_config *h2_config_get(conn_rec *c) +{ + h2_conn_ctx_t *conn_ctx = h2_conn_ctx_get(c); + + if (conn_ctx && conn_ctx->server) { + return h2_config_sget(conn_ctx->server); + } + return h2_config_sget(c->base_server); +} + +int h2_config_cgeti(conn_rec *c, h2_config_var_t var) +{ + return (int)h2_srv_config_geti64(h2_config_get(c), var); +} + +apr_int64_t h2_config_cgeti64(conn_rec *c, h2_config_var_t var) +{ + return h2_srv_config_geti64(h2_config_get(c), var); +} + +int h2_config_sgeti(server_rec *s, h2_config_var_t var) +{ + return (int)h2_srv_config_geti64(h2_config_sget(s), var); +} + +apr_int64_t h2_config_sgeti64(server_rec *s, h2_config_var_t var) +{ + return h2_srv_config_geti64(h2_config_sget(s), var); +} + +int h2_config_geti(request_rec *r, server_rec *s, h2_config_var_t var) +{ + return (int)h2_config_geti64(r, s, var); +} + +apr_int64_t h2_config_geti64(request_rec *r, server_rec *s, h2_config_var_t var) +{ + apr_int64_t mode = r? (int)h2_dir_config_geti64(h2_config_rget(r), var) : DEF_VAL; + return (mode != DEF_VAL)? mode : h2_config_sgeti64(s, var); +} + +int h2_config_rgeti(request_rec *r, h2_config_var_t var) +{ + return h2_config_geti(r, r->server, var); +} + +apr_int64_t h2_config_rgeti64(request_rec *r, h2_config_var_t var) +{ + return h2_config_geti64(r, r->server, var); +} + +apr_array_header_t *h2_config_push_list(request_rec *r) +{ + const h2_config *sconf; + const h2_dir_config *conf = h2_config_rget(r); + + if (conf && conf->push_list) { + return conf->push_list; + } + sconf = h2_config_sget(r->server); + return sconf? sconf->push_list : NULL; +} + +const struct h2_priority *h2_cconfig_get_priority(conn_rec *c, const char *content_type) +{ + const h2_config *conf = h2_config_get(c); + if (content_type && conf->priorities) { + apr_ssize_t len = (apr_ssize_t)strcspn(content_type, "; \t"); + h2_priority *prio = apr_hash_get(conf->priorities, content_type, len); + return prio? prio : apr_hash_get(conf->priorities, "*", 1); + } + return NULL; +} + +static const char *h2_conf_set_max_streams(cmd_parms *cmd, + void *dirconf, const char *value) +{ + apr_int64_t ival = (int)apr_atoi64(value); + if (ival < 1) { + return "value must be > 0"; + } + CONFIG_CMD_SET64(cmd, dirconf, H2_CONF_MAX_STREAMS, ival); + return NULL; +} + +static const char *h2_conf_set_window_size(cmd_parms *cmd, + void *dirconf, const char *value) +{ + int val = (int)apr_atoi64(value); + if (val < 1024) { + return "value must be >= 1024"; + } + CONFIG_CMD_SET(cmd, dirconf, H2_CONF_WIN_SIZE, val); + return NULL; +} + +static const char *h2_conf_set_min_workers(cmd_parms *cmd, + void *dirconf, const char *value) +{ + int val = (int)apr_atoi64(value); + if (val < 1) { + return "value must be > 0"; + } + CONFIG_CMD_SET(cmd, dirconf, H2_CONF_MIN_WORKERS, val); + return NULL; +} + +static const char *h2_conf_set_max_workers(cmd_parms *cmd, + void *dirconf, const char *value) +{ + int val = (int)apr_atoi64(value); + if (val < 1) { + return "value must be > 0"; + } + CONFIG_CMD_SET(cmd, dirconf, H2_CONF_MAX_WORKERS, val); + return NULL; +} + +static const char *h2_conf_set_max_worker_idle_limit(cmd_parms *cmd, + void *dirconf, const char *value) +{ + apr_interval_time_t timeout; + apr_status_t rv = ap_timeout_parameter_parse(value, &timeout, "s"); + if (rv != APR_SUCCESS) { + return "Invalid idle limit value"; + } + if (timeout <= 0) { + timeout = DEF_VAL; + } + CONFIG_CMD_SET64(cmd, dirconf, H2_CONF_MAX_WORKER_IDLE_LIMIT, timeout); + return NULL; +} + +static const char *h2_conf_set_stream_max_mem_size(cmd_parms *cmd, + void *dirconf, const char *value) +{ + int val = (int)apr_atoi64(value); + if (val < 1024) { + return "value must be >= 1024"; + } + CONFIG_CMD_SET(cmd, dirconf, H2_CONF_STREAM_MAX_MEM, val); + return NULL; +} + +static const char *h2_conf_set_session_extra_files(cmd_parms *cmd, + void *dirconf, const char *value) +{ + /* deprecated, ignore */ + (void)dirconf; + (void)value; + ap_log_perror(APLOG_MARK, APLOG_WARNING, 0, cmd->pool, /* NO LOGNO */ + "H2SessionExtraFiles is obsolete and will be ignored"); + return NULL; +} + +static const char *h2_conf_set_serialize_headers(cmd_parms *parms, + void *dirconf, const char *value) +{ + if (!strcasecmp(value, "On")) { + ap_log_error(APLOG_MARK, APLOG_WARNING, 0, parms->server, APLOGNO(10307) + "%s: this feature has been disabled and the directive " + "to enable it is ignored.", parms->cmd->name); + } + return NULL; +} + +static const char *h2_conf_set_direct(cmd_parms *cmd, + void *dirconf, const char *value) +{ + if (!strcasecmp(value, "On")) { + CONFIG_CMD_SET(cmd, dirconf, H2_CONF_DIRECT, 1); + return NULL; + } + else if (!strcasecmp(value, "Off")) { + CONFIG_CMD_SET(cmd, dirconf, H2_CONF_DIRECT, 0); + return NULL; + } + return "value must be On or Off"; +} + +static const char *h2_conf_set_push(cmd_parms *cmd, void *dirconf, const char *value) +{ + if (!strcasecmp(value, "On")) { + CONFIG_CMD_SET(cmd, dirconf, H2_CONF_PUSH, 1); + return NULL; + } + else if (!strcasecmp(value, "Off")) { + CONFIG_CMD_SET(cmd, dirconf, H2_CONF_PUSH, 0); + return NULL; + } + return "value must be On or Off"; +} + +static const char *h2_conf_add_push_priority(cmd_parms *cmd, void *_cfg, + const char *ctype, const char *sdependency, + const char *sweight) +{ + h2_config *cfg = (h2_config *)h2_config_sget(cmd->server); + const char *sdefweight = "16"; /* default AFTER weight */ + h2_dependency dependency; + h2_priority *priority; + int weight; + + (void)_cfg; + if (!*ctype) { + return "1st argument must be a mime-type, like 'text/css' or '*'"; + } + + if (!sweight) { + /* 2 args only, but which one? */ + if (apr_isdigit(sdependency[0])) { + sweight = sdependency; + sdependency = "AFTER"; /* default dependency */ + } + } + + if (!strcasecmp("AFTER", sdependency)) { + dependency = H2_DEPENDANT_AFTER; + } + else if (!strcasecmp("BEFORE", sdependency)) { + dependency = H2_DEPENDANT_BEFORE; + if (sweight) { + return "dependency 'Before' does not allow a weight"; + } + } + else if (!strcasecmp("INTERLEAVED", sdependency)) { + dependency = H2_DEPENDANT_INTERLEAVED; + sdefweight = "256"; /* default INTERLEAVED weight */ + } + else { + return "dependency must be one of 'After', 'Before' or 'Interleaved'"; + } + + weight = (int)apr_atoi64(sweight? sweight : sdefweight); + if (weight < NGHTTP2_MIN_WEIGHT) { + return apr_psprintf(cmd->pool, "weight must be a number >= %d", + NGHTTP2_MIN_WEIGHT); + } + + priority = apr_pcalloc(cmd->pool, sizeof(*priority)); + priority->dependency = dependency; + priority->weight = weight; + + if (!cfg->priorities) { + cfg->priorities = apr_hash_make(cmd->pool); + } + apr_hash_set(cfg->priorities, ctype, (apr_ssize_t)strlen(ctype), priority); + return NULL; +} + +static const char *h2_conf_set_modern_tls_only(cmd_parms *cmd, + void *dirconf, const char *value) +{ + if (!strcasecmp(value, "On")) { + CONFIG_CMD_SET(cmd, dirconf, H2_CONF_MODERN_TLS_ONLY, 1); + return NULL; + } + else if (!strcasecmp(value, "Off")) { + CONFIG_CMD_SET(cmd, dirconf, H2_CONF_MODERN_TLS_ONLY, 0); + return NULL; + } + return "value must be On or Off"; +} + +static const char *h2_conf_set_upgrade(cmd_parms *cmd, + void *dirconf, const char *value) +{ + if (!strcasecmp(value, "On")) { + CONFIG_CMD_SET(cmd, dirconf, H2_CONF_UPGRADE, 1); + return NULL; + } + else if (!strcasecmp(value, "Off")) { + CONFIG_CMD_SET(cmd, dirconf, H2_CONF_UPGRADE, 0); + return NULL; + } + return "value must be On or Off"; +} + +static const char *h2_conf_set_tls_warmup_size(cmd_parms *cmd, + void *dirconf, const char *value) +{ + apr_int64_t val = apr_atoi64(value); + CONFIG_CMD_SET64(cmd, dirconf, H2_CONF_TLS_WARMUP_SIZE, val); + return NULL; +} + +static const char *h2_conf_set_tls_cooldown_secs(cmd_parms *cmd, + void *dirconf, const char *value) +{ + apr_int64_t val = (int)apr_atoi64(value); + CONFIG_CMD_SET64(cmd, dirconf, H2_CONF_TLS_COOLDOWN_SECS, val); + return NULL; +} + +static const char *h2_conf_set_push_diary_size(cmd_parms *cmd, + void *dirconf, const char *value) +{ + int val = (int)apr_atoi64(value); + if (val < 0) { + return "value must be >= 0"; + } + if (val > 0 && (val & (val-1))) { + return "value must a power of 2"; + } + if (val > (1 << 15)) { + return "value must <= 65536"; + } + CONFIG_CMD_SET(cmd, dirconf, H2_CONF_PUSH_DIARY_SIZE, val); + return NULL; +} + +static const char *h2_conf_set_copy_files(cmd_parms *cmd, + void *dirconf, const char *value) +{ + if (!strcasecmp(value, "On")) { + CONFIG_CMD_SET(cmd, dirconf, H2_CONF_COPY_FILES, 1); + return NULL; + } + else if (!strcasecmp(value, "Off")) { + CONFIG_CMD_SET(cmd, dirconf, H2_CONF_COPY_FILES, 0); + return NULL; + } + return "value must be On or Off"; +} + +static void add_push(apr_array_header_t **plist, apr_pool_t *pool, h2_push_res *push) +{ + h2_push_res *new; + if (!*plist) { + *plist = apr_array_make(pool, 10, sizeof(*push)); + } + new = apr_array_push(*plist); + new->uri_ref = push->uri_ref; + new->critical = push->critical; +} + +static const char *h2_conf_add_push_res(cmd_parms *cmd, void *dirconf, + const char *arg1, const char *arg2, + const char *arg3) +{ + h2_push_res push; + const char *last = arg3; + + memset(&push, 0, sizeof(push)); + if (!strcasecmp("add", arg1)) { + push.uri_ref = arg2; + } + else { + push.uri_ref = arg1; + last = arg2; + if (arg3) { + return "too many parameter"; + } + } + + if (last) { + if (!strcasecmp("critical", last)) { + push.critical = 1; + } + else { + return "unknown last parameter"; + } + } + + if (cmd->path) { + add_push(&(((h2_dir_config*)dirconf)->push_list), cmd->pool, &push); + } + else { + add_push(&(h2_config_sget(cmd->server)->push_list), cmd->pool, &push); + } + return NULL; +} + +static const char *h2_conf_set_early_hints(cmd_parms *cmd, + void *dirconf, const char *value) +{ + int val; + + if (!strcasecmp(value, "On")) val = 1; + else if (!strcasecmp(value, "Off")) val = 0; + else return "value must be On or Off"; + + CONFIG_CMD_SET(cmd, dirconf, H2_CONF_EARLY_HINTS, val); + if (cmd->path) { + ap_log_perror(APLOG_MARK, APLOG_WARNING, 0, cmd->pool, + "H2EarlyHints = %d on path %s", val, cmd->path); + } + return NULL; +} + +static const char *h2_conf_set_padding(cmd_parms *cmd, void *dirconf, const char *value) +{ + int val; + + val = (int)apr_atoi64(value); + if (val < 0) { + return "number of bits must be >= 0"; + } + if (val > 8) { + return "number of bits must be <= 8"; + } + CONFIG_CMD_SET(cmd, dirconf, H2_CONF_PADDING_BITS, val); + return NULL; +} + +static const char *h2_conf_set_output_buffer(cmd_parms *cmd, + void *dirconf, const char *value) +{ + if (!strcasecmp(value, "On")) { + CONFIG_CMD_SET(cmd, dirconf, H2_CONF_OUTPUT_BUFFER, 1); + return NULL; + } + else if (!strcasecmp(value, "Off")) { + CONFIG_CMD_SET(cmd, dirconf, H2_CONF_OUTPUT_BUFFER, 0); + return NULL; + } + return "value must be On or Off"; +} + +static const char *h2_conf_set_stream_timeout(cmd_parms *cmd, + void *dirconf, const char *value) +{ + apr_status_t rv; + apr_interval_time_t timeout; + + rv = ap_timeout_parameter_parse(value, &timeout, "s"); + if (rv != APR_SUCCESS) { + return "Invalid timeout value"; + } + CONFIG_CMD_SET64(cmd, dirconf, H2_CONF_STREAM_TIMEOUT, timeout); + return NULL; +} + +void h2_get_workers_config(server_rec *s, int *pminw, int *pmaxw, + apr_time_t *pidle_limit) +{ + int threads_per_child = 0; + + *pminw = h2_config_sgeti(s, H2_CONF_MIN_WORKERS); + *pmaxw = h2_config_sgeti(s, H2_CONF_MAX_WORKERS); + + ap_mpm_query(AP_MPMQ_MAX_THREADS, &threads_per_child); + if (*pminw <= 0) { + *pminw = threads_per_child; + } + if (*pmaxw <= 0) { + *pmaxw = H2MAX(4, 3 * (*pminw) / 2); + } + *pidle_limit = h2_config_sgeti64(s, H2_CONF_MAX_WORKER_IDLE_LIMIT); +} + +#define AP_END_CMD AP_INIT_TAKE1(NULL, NULL, NULL, RSRC_CONF, NULL) + +const command_rec h2_cmds[] = { + AP_INIT_TAKE1("H2MaxSessionStreams", h2_conf_set_max_streams, NULL, + RSRC_CONF, "maximum number of open streams per session"), + AP_INIT_TAKE1("H2WindowSize", h2_conf_set_window_size, NULL, + RSRC_CONF, "window size on client DATA"), + AP_INIT_TAKE1("H2MinWorkers", h2_conf_set_min_workers, NULL, + RSRC_CONF, "minimum number of worker threads per child"), + AP_INIT_TAKE1("H2MaxWorkers", h2_conf_set_max_workers, NULL, + RSRC_CONF, "maximum number of worker threads per child"), + AP_INIT_TAKE1("H2MaxWorkerIdleSeconds", h2_conf_set_max_worker_idle_limit, NULL, + RSRC_CONF, "maximum number of idle seconds before a worker shuts down"), + AP_INIT_TAKE1("H2StreamMaxMemSize", h2_conf_set_stream_max_mem_size, NULL, + RSRC_CONF, "maximum number of bytes buffered in memory for a stream"), + AP_INIT_TAKE1("H2SerializeHeaders", h2_conf_set_serialize_headers, NULL, + RSRC_CONF, "disabled, this directive has no longer an effect."), + AP_INIT_TAKE1("H2ModernTLSOnly", h2_conf_set_modern_tls_only, NULL, + RSRC_CONF, "off to not impose RFC 7540 restrictions on TLS"), + AP_INIT_TAKE1("H2Upgrade", h2_conf_set_upgrade, NULL, + RSRC_CONF|OR_AUTHCFG, "on to allow HTTP/1 Upgrades to h2/h2c"), + AP_INIT_TAKE1("H2Direct", h2_conf_set_direct, NULL, + RSRC_CONF, "on to enable direct HTTP/2 mode"), + AP_INIT_TAKE1("H2SessionExtraFiles", h2_conf_set_session_extra_files, NULL, + RSRC_CONF, "number of extra file a session might keep open (obsolete)"), + AP_INIT_TAKE1("H2TLSWarmUpSize", h2_conf_set_tls_warmup_size, NULL, + RSRC_CONF, "number of bytes on TLS connection before doing max writes"), + AP_INIT_TAKE1("H2TLSCoolDownSecs", h2_conf_set_tls_cooldown_secs, NULL, + RSRC_CONF, "seconds of idle time on TLS before shrinking writes"), + AP_INIT_TAKE1("H2Push", h2_conf_set_push, NULL, + RSRC_CONF|OR_AUTHCFG, "off to disable HTTP/2 server push"), + AP_INIT_TAKE23("H2PushPriority", h2_conf_add_push_priority, NULL, + RSRC_CONF, "define priority of PUSHed resources per content type"), + AP_INIT_TAKE1("H2PushDiarySize", h2_conf_set_push_diary_size, NULL, + RSRC_CONF, "size of push diary"), + AP_INIT_TAKE1("H2CopyFiles", h2_conf_set_copy_files, NULL, + OR_FILEINFO, "on to perform copy of file data"), + AP_INIT_TAKE123("H2PushResource", h2_conf_add_push_res, NULL, + OR_FILEINFO|OR_AUTHCFG, "add a resource to be pushed in this location/on this server."), + AP_INIT_TAKE1("H2EarlyHints", h2_conf_set_early_hints, NULL, + RSRC_CONF, "on to enable interim status 103 responses"), + AP_INIT_TAKE1("H2Padding", h2_conf_set_padding, NULL, + RSRC_CONF, "set payload padding"), + AP_INIT_TAKE1("H2OutputBuffering", h2_conf_set_output_buffer, NULL, + RSRC_CONF, "set stream output buffer on/off"), + AP_INIT_TAKE1("H2StreamTimeout", h2_conf_set_stream_timeout, NULL, + RSRC_CONF, "set stream timeout"), + AP_END_CMD +}; + + |