Mercurial > hg > nginx-quic
view src/stream/ngx_stream_set_module.c @ 8988:be39ffdf9208 quic
QUIC: removed cancelable flag from QUIC and HTTP/3 events.
All these events are created in context of a client connection and are deleted
when the connection is closed. Setting ev->cancelable could trigger premature
connection closure and a socket leak alert.
author | Roman Arutyunyan <arut@nginx.com> |
---|---|
date | Wed, 30 Nov 2022 14:09:08 +0400 |
parents | 45e9281c6c5b |
children |
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/* * Copyright (C) Pavel Pautov * Copyright (C) Nginx, Inc. */ #include <ngx_config.h> #include <ngx_core.h> #include <ngx_stream.h> typedef struct { ngx_int_t index; ngx_stream_set_variable_pt set_handler; uintptr_t data; ngx_stream_complex_value_t value; } ngx_stream_set_cmd_t; typedef struct { ngx_array_t commands; } ngx_stream_set_srv_conf_t; static ngx_int_t ngx_stream_set_handler(ngx_stream_session_t *s); static ngx_int_t ngx_stream_set_var(ngx_stream_session_t *s, ngx_stream_variable_value_t *v, uintptr_t data); static ngx_int_t ngx_stream_set_init(ngx_conf_t *cf); static void *ngx_stream_set_create_srv_conf(ngx_conf_t *cf); static char *ngx_stream_set(ngx_conf_t *cf, ngx_command_t *cmd, void *conf); static ngx_command_t ngx_stream_set_commands[] = { { ngx_string("set"), NGX_STREAM_SRV_CONF|NGX_CONF_TAKE2, ngx_stream_set, NGX_STREAM_SRV_CONF_OFFSET, 0, NULL }, ngx_null_command }; static ngx_stream_module_t ngx_stream_set_module_ctx = { NULL, /* preconfiguration */ ngx_stream_set_init, /* postconfiguration */ NULL, /* create main configuration */ NULL, /* init main configuration */ ngx_stream_set_create_srv_conf, /* create server configuration */ NULL /* merge server configuration */ }; ngx_module_t ngx_stream_set_module = { NGX_MODULE_V1, &ngx_stream_set_module_ctx, /* module context */ ngx_stream_set_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_int_t ngx_stream_set_handler(ngx_stream_session_t *s) { ngx_str_t str; ngx_uint_t i; ngx_stream_set_cmd_t *cmds; ngx_stream_set_srv_conf_t *scf; ngx_stream_variable_value_t vv; scf = ngx_stream_get_module_srv_conf(s, ngx_stream_set_module); cmds = scf->commands.elts; vv = ngx_stream_variable_null_value; for (i = 0; i < scf->commands.nelts; i++) { if (ngx_stream_complex_value(s, &cmds[i].value, &str) != NGX_OK) { return NGX_ERROR; } if (cmds[i].set_handler != NULL) { vv.len = str.len; vv.data = str.data; cmds[i].set_handler(s, &vv, cmds[i].data); } else { s->variables[cmds[i].index].len = str.len; s->variables[cmds[i].index].valid = 1; s->variables[cmds[i].index].no_cacheable = 0; s->variables[cmds[i].index].not_found = 0; s->variables[cmds[i].index].data = str.data; } } return NGX_DECLINED; } static ngx_int_t ngx_stream_set_var(ngx_stream_session_t *s, ngx_stream_variable_value_t *v, uintptr_t data) { *v = ngx_stream_variable_null_value; return NGX_OK; } static ngx_int_t ngx_stream_set_init(ngx_conf_t *cf) { ngx_stream_handler_pt *h; ngx_stream_core_main_conf_t *cmcf; cmcf = ngx_stream_conf_get_module_main_conf(cf, ngx_stream_core_module); h = ngx_array_push(&cmcf->phases[NGX_STREAM_PREACCESS_PHASE].handlers); if (h == NULL) { return NGX_ERROR; } *h = ngx_stream_set_handler; return NGX_OK; } static void * ngx_stream_set_create_srv_conf(ngx_conf_t *cf) { ngx_stream_set_srv_conf_t *conf; conf = ngx_pcalloc(cf->pool, sizeof(ngx_stream_set_srv_conf_t)); if (conf == NULL) { return NULL; } /* * set by ngx_pcalloc(): * * conf->commands = { NULL }; */ return conf; } static char * ngx_stream_set(ngx_conf_t *cf, ngx_command_t *cmd, void *conf) { ngx_stream_set_srv_conf_t *scf = conf; ngx_str_t *args; ngx_int_t index; ngx_stream_set_cmd_t *set_cmd; ngx_stream_variable_t *v; ngx_stream_compile_complex_value_t ccv; args = cf->args->elts; if (args[1].data[0] != '$') { ngx_conf_log_error(NGX_LOG_EMERG, cf, 0, "invalid variable name \"%V\"", &args[1]); return NGX_CONF_ERROR; } args[1].len--; args[1].data++; v = ngx_stream_add_variable(cf, &args[1], NGX_STREAM_VAR_CHANGEABLE|NGX_STREAM_VAR_WEAK); if (v == NULL) { return NGX_CONF_ERROR; } index = ngx_stream_get_variable_index(cf, &args[1]); if (index == NGX_ERROR) { return NGX_CONF_ERROR; } if (v->get_handler == NULL) { v->get_handler = ngx_stream_set_var; } if (scf->commands.elts == NULL) { if (ngx_array_init(&scf->commands, cf->pool, 1, sizeof(ngx_stream_set_cmd_t)) != NGX_OK) { return NGX_CONF_ERROR; } } set_cmd = ngx_array_push(&scf->commands); if (set_cmd == NULL) { return NGX_CONF_ERROR; } set_cmd->index = index; set_cmd->set_handler = v->set_handler; set_cmd->data = v->data; ngx_memzero(&ccv, sizeof(ngx_stream_compile_complex_value_t)); ccv.cf = cf; ccv.value = &args[2]; ccv.complex_value = &set_cmd->value; if (ngx_stream_compile_complex_value(&ccv) != NGX_OK) { return NGX_CONF_ERROR; } return NGX_CONF_OK; }