diff options
Diffstat (limited to 'app/nginx/src/stream/ngx_stream_upstream.c')
| -rw-r--r-- | app/nginx/src/stream/ngx_stream_upstream.c | 717 |
1 files changed, 0 insertions, 717 deletions
diff --git a/app/nginx/src/stream/ngx_stream_upstream.c b/app/nginx/src/stream/ngx_stream_upstream.c deleted file mode 100644 index c9e1784..0000000 --- a/app/nginx/src/stream/ngx_stream_upstream.c +++ /dev/null @@ -1,717 +0,0 @@ - -/* - * Copyright (C) Igor Sysoev - * Copyright (C) Nginx, Inc. - */ - - -#include <ngx_config.h> -#include <ngx_core.h> -#include <ngx_stream.h> - - -static ngx_int_t ngx_stream_upstream_add_variables(ngx_conf_t *cf); -static ngx_int_t ngx_stream_upstream_addr_variable(ngx_stream_session_t *s, - ngx_stream_variable_value_t *v, uintptr_t data); -static ngx_int_t ngx_stream_upstream_response_time_variable( - ngx_stream_session_t *s, ngx_stream_variable_value_t *v, uintptr_t data); -static ngx_int_t ngx_stream_upstream_bytes_variable(ngx_stream_session_t *s, - ngx_stream_variable_value_t *v, uintptr_t data); - -static char *ngx_stream_upstream(ngx_conf_t *cf, ngx_command_t *cmd, - void *dummy); -static char *ngx_stream_upstream_server(ngx_conf_t *cf, ngx_command_t *cmd, - void *conf); -static void *ngx_stream_upstream_create_main_conf(ngx_conf_t *cf); -static char *ngx_stream_upstream_init_main_conf(ngx_conf_t *cf, void *conf); - - -static ngx_command_t ngx_stream_upstream_commands[] = { - - { ngx_string("upstream"), - NGX_STREAM_MAIN_CONF|NGX_CONF_BLOCK|NGX_CONF_TAKE1, - ngx_stream_upstream, - 0, - 0, - NULL }, - - { ngx_string("server"), - NGX_STREAM_UPS_CONF|NGX_CONF_1MORE, - ngx_stream_upstream_server, - NGX_STREAM_SRV_CONF_OFFSET, - 0, - NULL }, - - ngx_null_command -}; - - -static ngx_stream_module_t ngx_stream_upstream_module_ctx = { - ngx_stream_upstream_add_variables, /* preconfiguration */ - NULL, /* postconfiguration */ - - ngx_stream_upstream_create_main_conf, /* create main configuration */ - ngx_stream_upstream_init_main_conf, /* init main configuration */ - - NULL, /* create server configuration */ - NULL /* merge server configuration */ -}; - - -ngx_module_t ngx_stream_upstream_module = { - NGX_MODULE_V1, - &ngx_stream_upstream_module_ctx, /* module context */ - ngx_stream_upstream_commands, /* module directives */ - NGX_STREAM_MODULE, /* module type */ - NULL, /* init master */ - NULL, /* init module */ - NULL, /* init process */ - NULL, /* init thread */ - NULL, /* exit thread */ - NULL, /* exit process */ - NULL, /* exit master */ - NGX_MODULE_V1_PADDING -}; - - -static ngx_stream_variable_t ngx_stream_upstream_vars[] = { - - { ngx_string("upstream_addr"), NULL, - ngx_stream_upstream_addr_variable, 0, - NGX_STREAM_VAR_NOCACHEABLE, 0 }, - - { ngx_string("upstream_bytes_sent"), NULL, - ngx_stream_upstream_bytes_variable, 0, - NGX_STREAM_VAR_NOCACHEABLE, 0 }, - - { ngx_string("upstream_connect_time"), NULL, - ngx_stream_upstream_response_time_variable, 2, - NGX_STREAM_VAR_NOCACHEABLE, 0 }, - - { ngx_string("upstream_first_byte_time"), NULL, - ngx_stream_upstream_response_time_variable, 1, - NGX_STREAM_VAR_NOCACHEABLE, 0 }, - - { ngx_string("upstream_session_time"), NULL, - ngx_stream_upstream_response_time_variable, 0, - NGX_STREAM_VAR_NOCACHEABLE, 0 }, - - { ngx_string("upstream_bytes_received"), NULL, - ngx_stream_upstream_bytes_variable, 1, - NGX_STREAM_VAR_NOCACHEABLE, 0 }, - - { ngx_null_string, NULL, NULL, 0, 0, 0 } -}; - - -static ngx_int_t -ngx_stream_upstream_add_variables(ngx_conf_t *cf) -{ - ngx_stream_variable_t *var, *v; - - for (v = ngx_stream_upstream_vars; v->name.len; v++) { - var = ngx_stream_add_variable(cf, &v->name, v->flags); - if (var == NULL) { - return NGX_ERROR; - } - - var->get_handler = v->get_handler; - var->data = v->data; - } - - return NGX_OK; -} - - -static ngx_int_t -ngx_stream_upstream_addr_variable(ngx_stream_session_t *s, - ngx_stream_variable_value_t *v, uintptr_t data) -{ - u_char *p; - size_t len; - ngx_uint_t i; - ngx_stream_upstream_state_t *state; - - v->valid = 1; - v->no_cacheable = 0; - v->not_found = 0; - - if (s->upstream_states == NULL || s->upstream_states->nelts == 0) { - v->not_found = 1; - return NGX_OK; - } - - len = 0; - state = s->upstream_states->elts; - - for (i = 0; i < s->upstream_states->nelts; i++) { - if (state[i].peer) { - len += state[i].peer->len; - } - - len += 2; - } - - p = ngx_pnalloc(s->connection->pool, len); - if (p == NULL) { - return NGX_ERROR; - } - - v->data = p; - - i = 0; - - for ( ;; ) { - if (state[i].peer) { - p = ngx_cpymem(p, state[i].peer->data, state[i].peer->len); - } - - if (++i == s->upstream_states->nelts) { - break; - } - - *p++ = ','; - *p++ = ' '; - } - - v->len = p - v->data; - - return NGX_OK; -} - - -static ngx_int_t -ngx_stream_upstream_bytes_variable(ngx_stream_session_t *s, - ngx_stream_variable_value_t *v, uintptr_t data) -{ - u_char *p; - size_t len; - ngx_uint_t i; - ngx_stream_upstream_state_t *state; - - v->valid = 1; - v->no_cacheable = 0; - v->not_found = 0; - - if (s->upstream_states == NULL || s->upstream_states->nelts == 0) { - v->not_found = 1; - return NGX_OK; - } - - len = s->upstream_states->nelts * (NGX_OFF_T_LEN + 2); - - p = ngx_pnalloc(s->connection->pool, len); - if (p == NULL) { - return NGX_ERROR; - } - - v->data = p; - - i = 0; - state = s->upstream_states->elts; - - for ( ;; ) { - - if (data == 1) { - p = ngx_sprintf(p, "%O", state[i].bytes_received); - - } else { - p = ngx_sprintf(p, "%O", state[i].bytes_sent); - } - - if (++i == s->upstream_states->nelts) { - break; - } - - *p++ = ','; - *p++ = ' '; - } - - v->len = p - v->data; - - return NGX_OK; -} - - -static ngx_int_t -ngx_stream_upstream_response_time_variable(ngx_stream_session_t *s, - ngx_stream_variable_value_t *v, uintptr_t data) -{ - u_char *p; - size_t len; - ngx_uint_t i; - ngx_msec_int_t ms; - ngx_stream_upstream_state_t *state; - - v->valid = 1; - v->no_cacheable = 0; - v->not_found = 0; - - if (s->upstream_states == NULL || s->upstream_states->nelts == 0) { - v->not_found = 1; - return NGX_OK; - } - - len = s->upstream_states->nelts * (NGX_TIME_T_LEN + 4 + 2); - - p = ngx_pnalloc(s->connection->pool, len); - if (p == NULL) { - return NGX_ERROR; - } - - v->data = p; - - i = 0; - state = s->upstream_states->elts; - - for ( ;; ) { - - if (data == 1) { - if (state[i].first_byte_time == (ngx_msec_t) -1) { - *p++ = '-'; - goto next; - } - - ms = state[i].first_byte_time; - - } else if (data == 2 && state[i].connect_time != (ngx_msec_t) -1) { - ms = state[i].connect_time; - - } else { - ms = state[i].response_time; - } - - ms = ngx_max(ms, 0); - p = ngx_sprintf(p, "%T.%03M", (time_t) ms / 1000, ms % 1000); - - next: - - if (++i == s->upstream_states->nelts) { - break; - } - - *p++ = ','; - *p++ = ' '; - } - - v->len = p - v->data; - - return NGX_OK; -} - - -static char * -ngx_stream_upstream(ngx_conf_t *cf, ngx_command_t *cmd, void *dummy) -{ - char *rv; - void *mconf; - ngx_str_t *value; - ngx_url_t u; - ngx_uint_t m; - ngx_conf_t pcf; - ngx_stream_module_t *module; - ngx_stream_conf_ctx_t *ctx, *stream_ctx; - ngx_stream_upstream_srv_conf_t *uscf; - - ngx_memzero(&u, sizeof(ngx_url_t)); - - value = cf->args->elts; - u.host = value[1]; - u.no_resolve = 1; - u.no_port = 1; - - uscf = ngx_stream_upstream_add(cf, &u, NGX_STREAM_UPSTREAM_CREATE - |NGX_STREAM_UPSTREAM_WEIGHT - |NGX_STREAM_UPSTREAM_MAX_CONNS - |NGX_STREAM_UPSTREAM_MAX_FAILS - |NGX_STREAM_UPSTREAM_FAIL_TIMEOUT - |NGX_STREAM_UPSTREAM_DOWN - |NGX_STREAM_UPSTREAM_BACKUP); - if (uscf == NULL) { - return NGX_CONF_ERROR; - } - - - ctx = ngx_pcalloc(cf->pool, sizeof(ngx_stream_conf_ctx_t)); - if (ctx == NULL) { - return NGX_CONF_ERROR; - } - - stream_ctx = cf->ctx; - ctx->main_conf = stream_ctx->main_conf; - - /* the upstream{}'s srv_conf */ - - ctx->srv_conf = ngx_pcalloc(cf->pool, - sizeof(void *) * ngx_stream_max_module); - if (ctx->srv_conf == NULL) { - return NGX_CONF_ERROR; - } - - ctx->srv_conf[ngx_stream_upstream_module.ctx_index] = uscf; - - uscf->srv_conf = ctx->srv_conf; - - for (m = 0; cf->cycle->modules[m]; m++) { - if (cf->cycle->modules[m]->type != NGX_STREAM_MODULE) { - continue; - } - - module = cf->cycle->modules[m]->ctx; - - if (module->create_srv_conf) { - mconf = module->create_srv_conf(cf); - if (mconf == NULL) { - return NGX_CONF_ERROR; - } - - ctx->srv_conf[cf->cycle->modules[m]->ctx_index] = mconf; - } - } - - uscf->servers = ngx_array_create(cf->pool, 4, - sizeof(ngx_stream_upstream_server_t)); - if (uscf->servers == NULL) { - return NGX_CONF_ERROR; - } - - - /* parse inside upstream{} */ - - pcf = *cf; - cf->ctx = ctx; - cf->cmd_type = NGX_STREAM_UPS_CONF; - - rv = ngx_conf_parse(cf, NULL); - - *cf = pcf; - - if (rv != NGX_CONF_OK) { - return rv; - } - - if (uscf->servers->nelts == 0) { - ngx_conf_log_error(NGX_LOG_EMERG, cf, 0, - "no servers are inside upstream"); - return NGX_CONF_ERROR; - } - - return rv; -} - - -static char * -ngx_stream_upstream_server(ngx_conf_t *cf, ngx_command_t *cmd, void *conf) -{ - ngx_stream_upstream_srv_conf_t *uscf = conf; - - time_t fail_timeout; - ngx_str_t *value, s; - ngx_url_t u; - ngx_int_t weight, max_conns, max_fails; - ngx_uint_t i; - ngx_stream_upstream_server_t *us; - - us = ngx_array_push(uscf->servers); - if (us == NULL) { - return NGX_CONF_ERROR; - } - - ngx_memzero(us, sizeof(ngx_stream_upstream_server_t)); - - value = cf->args->elts; - - weight = 1; - max_conns = 0; - max_fails = 1; - fail_timeout = 10; - - for (i = 2; i < cf->args->nelts; i++) { - - if (ngx_strncmp(value[i].data, "weight=", 7) == 0) { - - if (!(uscf->flags & NGX_STREAM_UPSTREAM_WEIGHT)) { - goto not_supported; - } - - weight = ngx_atoi(&value[i].data[7], value[i].len - 7); - - if (weight == NGX_ERROR || weight == 0) { - goto invalid; - } - - continue; - } - - if (ngx_strncmp(value[i].data, "max_conns=", 10) == 0) { - - if (!(uscf->flags & NGX_STREAM_UPSTREAM_MAX_CONNS)) { - goto not_supported; - } - - max_conns = ngx_atoi(&value[i].data[10], value[i].len - 10); - - if (max_conns == NGX_ERROR) { - goto invalid; - } - - continue; - } - - if (ngx_strncmp(value[i].data, "max_fails=", 10) == 0) { - - if (!(uscf->flags & NGX_STREAM_UPSTREAM_MAX_FAILS)) { - goto not_supported; - } - - max_fails = ngx_atoi(&value[i].data[10], value[i].len - 10); - - if (max_fails == NGX_ERROR) { - goto invalid; - } - - continue; - } - - if (ngx_strncmp(value[i].data, "fail_timeout=", 13) == 0) { - - if (!(uscf->flags & NGX_STREAM_UPSTREAM_FAIL_TIMEOUT)) { - goto not_supported; - } - - s.len = value[i].len - 13; - s.data = &value[i].data[13]; - - fail_timeout = ngx_parse_time(&s, 1); - - if (fail_timeout == (time_t) NGX_ERROR) { - goto invalid; - } - - continue; - } - - if (ngx_strcmp(value[i].data, "backup") == 0) { - - if (!(uscf->flags & NGX_STREAM_UPSTREAM_BACKUP)) { - goto not_supported; - } - - us->backup = 1; - - continue; - } - - if (ngx_strcmp(value[i].data, "down") == 0) { - - if (!(uscf->flags & NGX_STREAM_UPSTREAM_DOWN)) { - goto not_supported; - } - - us->down = 1; - - continue; - } - - goto invalid; - } - - ngx_memzero(&u, sizeof(ngx_url_t)); - - u.url = value[1]; - - if (ngx_parse_url(cf->pool, &u) != NGX_OK) { - if (u.err) { - ngx_conf_log_error(NGX_LOG_EMERG, cf, 0, - "%s in upstream \"%V\"", u.err, &u.url); - } - - return NGX_CONF_ERROR; - } - - if (u.no_port) { - ngx_conf_log_error(NGX_LOG_EMERG, cf, 0, - "no port in upstream \"%V\"", &u.url); - return NGX_CONF_ERROR; - } - - us->name = u.url; - us->addrs = u.addrs; - us->naddrs = u.naddrs; - us->weight = weight; - us->max_conns = max_conns; - us->max_fails = max_fails; - us->fail_timeout = fail_timeout; - - return NGX_CONF_OK; - -invalid: - - ngx_conf_log_error(NGX_LOG_EMERG, cf, 0, - "invalid parameter \"%V\"", &value[i]); - - return NGX_CONF_ERROR; - -not_supported: - - ngx_conf_log_error(NGX_LOG_EMERG, cf, 0, - "balancing method does not support parameter \"%V\"", - &value[i]); - - return NGX_CONF_ERROR; -} - - -ngx_stream_upstream_srv_conf_t * -ngx_stream_upstream_add(ngx_conf_t *cf, ngx_url_t *u, ngx_uint_t flags) -{ - ngx_uint_t i; - ngx_stream_upstream_server_t *us; - ngx_stream_upstream_srv_conf_t *uscf, **uscfp; - ngx_stream_upstream_main_conf_t *umcf; - - if (!(flags & NGX_STREAM_UPSTREAM_CREATE)) { - - if (ngx_parse_url(cf->pool, u) != NGX_OK) { - if (u->err) { - ngx_conf_log_error(NGX_LOG_EMERG, cf, 0, - "%s in upstream \"%V\"", u->err, &u->url); - } - - return NULL; - } - } - - umcf = ngx_stream_conf_get_module_main_conf(cf, ngx_stream_upstream_module); - - uscfp = umcf->upstreams.elts; - - for (i = 0; i < umcf->upstreams.nelts; i++) { - - if (uscfp[i]->host.len != u->host.len - || ngx_strncasecmp(uscfp[i]->host.data, u->host.data, u->host.len) - != 0) - { - continue; - } - - if ((flags & NGX_STREAM_UPSTREAM_CREATE) - && (uscfp[i]->flags & NGX_STREAM_UPSTREAM_CREATE)) - { - ngx_conf_log_error(NGX_LOG_EMERG, cf, 0, - "duplicate upstream \"%V\"", &u->host); - return NULL; - } - - if ((uscfp[i]->flags & NGX_STREAM_UPSTREAM_CREATE) && !u->no_port) { - ngx_conf_log_error(NGX_LOG_EMERG, cf, 0, - "upstream \"%V\" may not have port %d", - &u->host, u->port); - return NULL; - } - - if ((flags & NGX_STREAM_UPSTREAM_CREATE) && !uscfp[i]->no_port) { - ngx_log_error(NGX_LOG_EMERG, cf->log, 0, - "upstream \"%V\" may not have port %d in %s:%ui", - &u->host, uscfp[i]->port, - uscfp[i]->file_name, uscfp[i]->line); - return NULL; - } - - if (uscfp[i]->port != u->port) { - continue; - } - - if (flags & NGX_STREAM_UPSTREAM_CREATE) { - uscfp[i]->flags = flags; - } - - return uscfp[i]; - } - - uscf = ngx_pcalloc(cf->pool, sizeof(ngx_stream_upstream_srv_conf_t)); - if (uscf == NULL) { - return NULL; - } - - uscf->flags = flags; - uscf->host = u->host; - uscf->file_name = cf->conf_file->file.name.data; - uscf->line = cf->conf_file->line; - uscf->port = u->port; - uscf->no_port = u->no_port; - - if (u->naddrs == 1 && (u->port || u->family == AF_UNIX)) { - uscf->servers = ngx_array_create(cf->pool, 1, - sizeof(ngx_stream_upstream_server_t)); - if (uscf->servers == NULL) { - return NULL; - } - - us = ngx_array_push(uscf->servers); - if (us == NULL) { - return NULL; - } - - ngx_memzero(us, sizeof(ngx_stream_upstream_server_t)); - - us->addrs = u->addrs; - us->naddrs = 1; - } - - uscfp = ngx_array_push(&umcf->upstreams); - if (uscfp == NULL) { - return NULL; - } - - *uscfp = uscf; - - return uscf; -} - - -static void * -ngx_stream_upstream_create_main_conf(ngx_conf_t *cf) -{ - ngx_stream_upstream_main_conf_t *umcf; - - umcf = ngx_pcalloc(cf->pool, sizeof(ngx_stream_upstream_main_conf_t)); - if (umcf == NULL) { - return NULL; - } - - if (ngx_array_init(&umcf->upstreams, cf->pool, 4, - sizeof(ngx_stream_upstream_srv_conf_t *)) - != NGX_OK) - { - return NULL; - } - - return umcf; -} - - -static char * -ngx_stream_upstream_init_main_conf(ngx_conf_t *cf, void *conf) -{ - ngx_stream_upstream_main_conf_t *umcf = conf; - - ngx_uint_t i; - ngx_stream_upstream_init_pt init; - ngx_stream_upstream_srv_conf_t **uscfp; - - uscfp = umcf->upstreams.elts; - - for (i = 0; i < umcf->upstreams.nelts; i++) { - - init = uscfp[i]->peer.init_upstream - ? uscfp[i]->peer.init_upstream - : ngx_stream_upstream_init_round_robin; - - if (init(cf, uscfp[i]) != NGX_OK) { - return NGX_CONF_ERROR; - } - } - - return NGX_CONF_OK; -} |