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ngx_tcp_core_module.c
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#include <ngx_config.h>
#include <ngx_core.h>
#include <ngx_event.h>
#include <nginx.h>
#include <ngx_tcp.h>
#include <from_ngx_src.h>
static void *ngx_tcp_core_create_main_conf(ngx_conf_t *cf);
static void *ngx_tcp_core_create_srv_conf(ngx_conf_t *cf);
static char *ngx_tcp_core_merge_srv_conf(ngx_conf_t *cf, void *parent,
void *child);
static ngx_int_t ngx_tcp_instruct_unix_listen(ngx_cycle_t *cycle);
static char *ngx_tcp_core_server(ngx_conf_t *cf, ngx_command_t *cmd,
void *conf);
static char *ngx_tcp_core_listen(ngx_conf_t *cf, ngx_command_t *cmd,
void *conf);
static char *ngx_tcp_socketfd_shm_set_slot(ngx_conf_t *cf,
ngx_command_t *cmd, void *conf);
static char *ngx_tcp_core_protocol(ngx_conf_t *cf, ngx_command_t *cmd,
void *conf);
static char *ngx_tcp_core_resolver(ngx_conf_t *cf, ngx_command_t *cmd,
void *conf);
static char *ngx_tcp_core_error_log(ngx_conf_t *cf, ngx_command_t *cmd,
void *conf);
static ngx_int_t ngx_tcp_process_init(ngx_cycle_t *cycle);
static ngx_conf_deprecated_t ngx_conf_deprecated_so_keepalive = {
ngx_conf_deprecated, "so_keepalive",
"so_keepalive\" parameter of the \"listen"
};
static ngx_command_t ngx_tcp_core_commands[] = {
{ ngx_string("error_log"),
NGX_TCP_MAIN_CONF|NGX_TCP_SRV_CONF|NGX_CONF_1MORE,
ngx_tcp_core_error_log,
NGX_TCP_MAIN_CONF_OFFSET,
0,
NULL },
{ ngx_string("max_socketfd_value"),
NGX_TCP_MAIN_CONF|NGX_CONF_TAKE1,
ngx_conf_set_num_slot,
NGX_TCP_MAIN_CONF_OFFSET,
offsetof(ngx_tcp_core_main_conf_t, max_socketfd_value),
NULL },
{ ngx_string("worker_process_unix_listen"),
NGX_TCP_MAIN_CONF|NGX_CONF_TAKE1,
ngx_conf_set_str_slot,
NGX_TCP_MAIN_CONF_OFFSET,
offsetof(ngx_tcp_core_main_conf_t, unix_url),
NULL },
{ ngx_string("socketfd_shm"),
NGX_TCP_MAIN_CONF|NGX_CONF_1MORE,
ngx_tcp_socketfd_shm_set_slot,
NGX_TCP_MAIN_CONF_OFFSET,
0,
NULL },
{ ngx_string("server"),
NGX_TCP_MAIN_CONF|NGX_CONF_BLOCK|NGX_CONF_NOARGS,
ngx_tcp_core_server,
0,
0,
NULL },
{ ngx_string("listen"),
NGX_TCP_SRV_CONF|NGX_CONF_TAKE12,
ngx_tcp_core_listen,
NGX_TCP_SRV_CONF_OFFSET,
0,
NULL },
{ ngx_string("protocol"),
NGX_TCP_SRV_CONF|NGX_CONF_TAKE1,
ngx_tcp_core_protocol,
NGX_TCP_SRV_CONF_OFFSET,
0,
NULL },
{ ngx_string("connection_pool_size"),
NGX_TCP_MAIN_CONF|NGX_TCP_SRV_CONF|NGX_CONF_TAKE1,
ngx_conf_set_size_slot,
NGX_TCP_SRV_CONF_OFFSET,
offsetof(ngx_tcp_core_srv_conf_t, connection_pool_size),
NULL },
{ ngx_string("so_keepalive"),
NGX_TCP_MAIN_CONF|NGX_TCP_SRV_CONF|NGX_CONF_FLAG,
ngx_conf_set_flag_slot,
NGX_TCP_SRV_CONF_OFFSET,
offsetof(ngx_tcp_core_srv_conf_t, so_keepalive),
&ngx_conf_deprecated_so_keepalive },
{ ngx_string("timeout"),
NGX_TCP_MAIN_CONF|NGX_TCP_SRV_CONF|NGX_CONF_TAKE1,
ngx_conf_set_msec_slot,
NGX_TCP_SRV_CONF_OFFSET,
offsetof(ngx_tcp_core_srv_conf_t, timeout),
NULL },
{ ngx_string("server_name"),
NGX_TCP_MAIN_CONF|NGX_TCP_SRV_CONF|NGX_CONF_TAKE1,
ngx_conf_set_str_slot,
NGX_TCP_SRV_CONF_OFFSET,
offsetof(ngx_tcp_core_srv_conf_t, server_name),
NULL },
{ ngx_string("resolver"),
NGX_TCP_MAIN_CONF|NGX_TCP_SRV_CONF|NGX_CONF_1MORE,
ngx_tcp_core_resolver,
NGX_TCP_SRV_CONF_OFFSET,
0,
NULL },
{ ngx_string("resolver_timeout"),
NGX_TCP_MAIN_CONF|NGX_TCP_SRV_CONF|NGX_CONF_TAKE1,
ngx_conf_set_msec_slot,
NGX_TCP_SRV_CONF_OFFSET,
offsetof(ngx_tcp_core_srv_conf_t, resolver_timeout),
NULL },
ngx_null_command
};
static ngx_tcp_module_t ngx_tcp_core_module_ctx = {
NULL, /* protocol */
ngx_tcp_core_create_main_conf, /* create main configuration */
NULL, /* init main configuration */
ngx_tcp_core_create_srv_conf, /* create server configuration */
ngx_tcp_core_merge_srv_conf /* merge server configuration */
};
ngx_module_t ngx_tcp_core_module = {
NGX_MODULE_V1,
&ngx_tcp_core_module_ctx, /* module context */
ngx_tcp_core_commands, /* module directives */
NGX_TCP_MODULE, /* module type */
NULL, /* init master */
NULL, /* init module */
ngx_tcp_process_init, /* init process */
NULL, /* init thread */
NULL, /* exit thread */
NULL, /* exit process */
NULL, /* exit master */
NGX_MODULE_V1_PADDING
};
static void *
ngx_tcp_core_create_main_conf(ngx_conf_t *cf)
{
ngx_tcp_core_main_conf_t *cmcf;
cmcf = ngx_pcalloc(cf->pool, sizeof(ngx_tcp_core_main_conf_t));
if (cmcf == NULL) {
return NULL;
}
if (ngx_array_init(&cmcf->servers, cf->pool, 4,
sizeof(ngx_tcp_core_srv_conf_t *))
!= NGX_OK)
{
return NULL;
}
if (ngx_array_init(&cmcf->listen, cf->pool, 4, sizeof(ngx_tcp_listen_t))
!= NGX_OK)
{
return NULL;
}
cmcf->max_socketfd_value = NGX_CONF_UNSET;
cmcf->socketfd_shm = NGX_CONF_UNSET_PTR;
return cmcf;
}
static void *
ngx_tcp_core_create_srv_conf(ngx_conf_t *cf)
{
ngx_tcp_core_srv_conf_t *cscf;
cscf = ngx_pcalloc(cf->pool, sizeof(ngx_tcp_core_srv_conf_t));
if (cscf == NULL) {
return NULL;
}
cscf->timeout = NGX_CONF_UNSET_MSEC;
cscf->resolver_timeout = NGX_CONF_UNSET_MSEC;
cscf->so_keepalive = NGX_CONF_UNSET;
cscf->resolver = NGX_CONF_UNSET_PTR;
cscf->file_name = cf->conf_file->file.name.data;
cscf->line = cf->conf_file->line;
cscf->connection_pool_size = NGX_CONF_UNSET_SIZE;
return cscf;
}
static char *
ngx_tcp_core_merge_srv_conf(ngx_conf_t *cf, void *parent, void *child)
{
ngx_tcp_core_srv_conf_t *prev = parent;
ngx_tcp_core_srv_conf_t *conf = child;
ngx_conf_merge_msec_value(conf->timeout, prev->timeout, 60000);
ngx_conf_merge_msec_value(conf->resolver_timeout, prev->resolver_timeout,
30000);
ngx_conf_merge_size_value(conf->connection_pool_size,
prev->connection_pool_size, 2048);
ngx_conf_merge_value(conf->so_keepalive, prev->so_keepalive, 0);
ngx_conf_merge_str_value(conf->server_name, prev->server_name, "");
if (conf->server_name.len == 0) {
conf->server_name = cf->cycle->hostname;
}
if (conf->protocol == NULL) {
ngx_log_error(NGX_LOG_EMERG, cf->log, 0,
"unknown tcp protocol for server in %s:%ui",
conf->file_name, conf->line);
return NGX_CONF_ERROR;
}
ngx_conf_merge_ptr_value(conf->resolver, prev->resolver, NULL);
/* for unix domain socket */
prev->protocol = conf->protocol;
prev->timeout = conf->timeout;
return NGX_CONF_OK;
}
static char *
ngx_tcp_core_error_log(ngx_conf_t *cf, ngx_command_t *cmd, void *conf)
{
ngx_tcp_core_main_conf_t *cmcf = conf;
ngx_str_t *value, name;
if (cmcf->error_log) {
return "is duplicate";
}
value = cf->args->elts;
if (ngx_strcmp(value[1].data, "stderr") == 0) {
ngx_str_null(&name);
} else {
name = value[1];
}
//cmcf->error_log = ngx_log_create(cf->cycle, &name);
cmcf->error_log = __ngx_log_create(cf->cycle, &name);
if (cmcf->error_log == NULL) {
return NGX_CONF_ERROR;
}
if (cf->args->nelts == 2) {
cmcf->error_log->log_level = NGX_LOG_ERR;
return NGX_CONF_OK;
}
return __ngx_log_set_levels(cf, cmcf->error_log);
//return ngx_log_set_levels(cf, cmcf->error_log);
}
static ngx_int_t
ngx_tcp_socketfd_shm_init(ngx_shm_zone_t *shm_zone, void *data)
{
/* socketfd_shm_t *ocache = data; */
socketfd_shm_t *socketfd_shm;
ngx_slab_pool_t *sp;
socketfd_shm = shm_zone->data;
/* if (ocache) {
if (ngx_strcmp(socketfd_shm->path->name.data, ocache->path->name.data) != 0) {
ngx_log_error(NGX_LOG_EMERG, shm_zone->shm.log, 0,
"cache \"%V\" uses the \"%V\" cache path "
"while previously it used the \"%V\" cache path",
&shm_zone->shm.name, &socketfd_shm->path->name,
&ocache->path->name);
return NGX_ERROR;
}
socketfd_shm->shpool = ocache->shpool;
} else {
socketfd_shm->shpool = (ngx_slab_pool_t *) shm_zone->shm.addr;
} */
socketfd_shm->shpool = (ngx_slab_pool_t *) shm_zone->shm.addr;
sp = socketfd_shm->shpool;
/* ngx_memzero(sp->start, sp->end - sp->start); */
socketfd_shm->info = (socketfd_shm_info_t *) sp->start;
socketfd_shm->info->socketfd_info =
(socketfd_info_t *)(sp->start + sizeof(socketfd_shm_info_t));
socketfd_shm->info->listening_unix_info = (unix_listening_info_t *)
((u_char *)(socketfd_shm->info->socketfd_info) +
*(socketfd_shm->max_socketfd_value) * sizeof(socketfd_info_t));
return NGX_OK;
}
static char *
ngx_tcp_socketfd_shm_set_slot(ngx_conf_t *cf, ngx_command_t *cmd, void *conf)
{
ngx_tcp_core_main_conf_t *cmcf = conf;
socketfd_shm_t *socketfd_shm;
ngx_str_t s, name, *value;
u_char *p;
ssize_t size;
ngx_uint_t i;
socketfd_shm = ngx_pcalloc(cf->pool, sizeof(socketfd_shm_t));
if (cmcf->socketfd_shm == NULL) {
return NGX_CONF_ERROR;
}
socketfd_shm->path = ngx_pcalloc(cf->pool, sizeof(ngx_path_t));
if (socketfd_shm->path == NULL) {
return NGX_CONF_ERROR;
}
socketfd_shm->max_socketfd_value = &cmcf->max_socketfd_value;
value = cf->args->elts;
socketfd_shm->path->name = value[1];
if (socketfd_shm->path->name.data[socketfd_shm->path->name.len - 1]
== '/') {
socketfd_shm->path->name.len--;
}
if (ngx_conf_full_name(cf->cycle, &socketfd_shm->path->name, 0) != NGX_OK) {
return NGX_CONF_ERROR;
}
size = 0;
for (i = 2; i < cf->args->nelts; i++) {
if (ngx_strncmp(value[i].data, "keys_zone=", 10) == 0) {
name.data = value[i].data + 10;
p = (u_char *) ngx_strchr(name.data, ':');
if (p) {
name.len = p - name.data;
p++;
s.len = value[i].data + value[i].len - p;
s.data = p;
size = ngx_parse_size(&s);
if (size > 8191) {
continue;
}
}
ngx_conf_log_error(NGX_LOG_EMERG, cf, 0,
"invalid keys zone size \"%V\"", &value[i]);
return NGX_CONF_ERROR;
}
}
if (name.len == 0 || size == 0) {
ngx_conf_log_error(NGX_LOG_EMERG, cf, 0,
"\"%V\" must have \"keys_zone\" parameter",
&cmd->name);
return NGX_CONF_ERROR;
}
socketfd_shm->path->manager = NULL;
socketfd_shm->path->loader = NULL;
socketfd_shm->path->data = socketfd_shm;
socketfd_shm->path->conf_file = cf->conf_file->file.name.data;
socketfd_shm->path->line = cf->conf_file->line;
if (ngx_add_path(cf, &socketfd_shm->path) != NGX_OK) {
return NGX_CONF_ERROR;
}
socketfd_shm->shm_zone = ngx_shared_memory_add(cf, &name, size, cmd->post);
if (socketfd_shm->shm_zone == NULL) {
return NGX_CONF_ERROR;
}
if (socketfd_shm->shm_zone->data) {
ngx_conf_log_error(NGX_LOG_EMERG, cf, 0,
"duplicate zone \"%V\"", &name);
return NGX_CONF_ERROR;
}
socketfd_shm->shm_zone->init = ngx_tcp_socketfd_shm_init;
socketfd_shm->shm_zone->data = socketfd_shm;
cmcf->socketfd_shm = socketfd_shm;
return NGX_CONF_OK;
}
static char *
ngx_tcp_core_server(ngx_conf_t *cf, ngx_command_t *cmd, void *conf)
{
char *rv;
void *mconf;
ngx_uint_t m;
ngx_conf_t pcf;
ngx_tcp_module_t *module;
ngx_tcp_conf_ctx_t *ctx, *tcp_ctx;
ngx_tcp_core_srv_conf_t *cscf, **cscfp;
ngx_tcp_core_main_conf_t *cmcf;
ctx = ngx_pcalloc(cf->pool, sizeof(ngx_tcp_conf_ctx_t));
if (ctx == NULL) {
return NGX_CONF_ERROR;
}
tcp_ctx = cf->ctx;
ctx->main_conf = tcp_ctx->main_conf;
/* the server{}'s srv_conf */
ctx->srv_conf = ngx_pcalloc(cf->pool, sizeof(void *) * ngx_tcp_max_module);
if (ctx->srv_conf == NULL) {
return NGX_CONF_ERROR;
}
for (m = 0; ngx_modules[m]; m++) {
if (ngx_modules[m]->type != NGX_TCP_MODULE) {
continue;
}
module = ngx_modules[m]->ctx;
if (module->create_srv_conf) {
mconf = module->create_srv_conf(cf);
if (mconf == NULL) {
return NGX_CONF_ERROR;
}
ctx->srv_conf[ngx_modules[m]->ctx_index] = mconf;
}
}
/* the server configuration context */
cscf = ctx->srv_conf[ngx_tcp_core_module.ctx_index];
cscf->ctx = ctx;
cmcf = ctx->main_conf[ngx_tcp_core_module.ctx_index];
cscfp = ngx_array_push(&cmcf->servers);
if (cscfp == NULL) {
return NGX_CONF_ERROR;
}
*cscfp = cscf;
/* parse inside server{} */
pcf = *cf;
cf->ctx = ctx;
cf->cmd_type = NGX_TCP_SRV_CONF;
rv = ngx_conf_parse(cf, NULL);
*cf = pcf;
return rv;
}
static char *
ngx_tcp_core_listen(ngx_conf_t *cf, ngx_command_t *cmd, void *conf)
{
ngx_tcp_core_srv_conf_t *cscf = conf;
size_t len, off;
in_port_t port;
ngx_str_t *value;
ngx_url_t u;
ngx_uint_t i, m;
struct sockaddr *sa;
ngx_tcp_listen_t *ls;
ngx_tcp_module_t *module;
struct sockaddr_in *sin;
ngx_tcp_core_main_conf_t *cmcf;
#if (NGX_HAVE_INET6)
struct sockaddr_in6 *sin6;
#endif
value = cf->args->elts;
ngx_memzero(&u, sizeof(ngx_url_t));
u.url = value[1];
u.listen = 1;
if (ngx_parse_url(cf->pool, &u) != NGX_OK) {
if (u.err) {
ngx_conf_log_error(NGX_LOG_EMERG, cf, 0,
"%s in \"%V\" of the \"listen\" directive",
u.err, &u.url);
}
return NGX_CONF_ERROR;
}
cmcf = ngx_tcp_conf_get_module_main_conf(cf, ngx_tcp_core_module);
ls = cmcf->listen.elts;
for (i = 0; i < cmcf->listen.nelts; i++) {
sa = (struct sockaddr *) ls[i].sockaddr;
if (sa->sa_family != u.family) {
continue;
}
switch (sa->sa_family) {
#if (NGX_HAVE_INET6)
case AF_INET6:
off = offsetof(struct sockaddr_in6, sin6_addr);
len = 16;
sin6 = (struct sockaddr_in6 *) sa;
port = sin6->sin6_port;
break;
#endif
#if (NGX_HAVE_UNIX_DOMAIN)
case AF_UNIX:
off = offsetof(struct sockaddr_un, sun_path);
len = sizeof(((struct sockaddr_un *) sa)->sun_path);
port = 0;
break;
#endif
default: /* AF_INET */
off = offsetof(struct sockaddr_in, sin_addr);
len = 4;
sin = (struct sockaddr_in *) sa;
port = sin->sin_port;
break;
}
if (ngx_memcmp(ls[i].sockaddr + off, u.sockaddr + off, len) != 0) {
continue;
}
if (port != u.port) {
continue;
}
ngx_conf_log_error(NGX_LOG_EMERG, cf, 0,
"duplicate \"%V\" address and port pair", &u.url);
return NGX_CONF_ERROR;
}
ls = ngx_array_push(&cmcf->listen);
if (ls == NULL) {
return NGX_CONF_ERROR;
}
ngx_memzero(ls, sizeof(ngx_tcp_listen_t));
ngx_memcpy(ls->sockaddr, u.sockaddr, u.socklen);
ls->socklen = u.socklen;
ls->wildcard = u.wildcard;
ls->ctx = cf->ctx;
#if (NGX_HAVE_INET6 && defined IPV6_V6ONLY)
ls->ipv6only = 1;
#endif
if (cscf->protocol == NULL) {
for (m = 0; ngx_modules[m]; m++) {
if (ngx_modules[m]->type != NGX_TCP_MODULE) {
continue;
}
module = ngx_modules[m]->ctx;
if (module->protocol == NULL) {
continue;
}
for (i = 0; module->protocol->port[i]; i++) {
if (module->protocol->port[i] == u.port) {
cscf->protocol = module->protocol;
break;
}
}
}
}
for (i = 2; i < cf->args->nelts; i++) {
if (ngx_strcmp(value[i].data, "bind") == 0) {
ls->bind = 1;
continue;
}
if (ngx_strncmp(value[i].data, "ipv6only=o", 10) == 0) {
#if (NGX_HAVE_INET6 && defined IPV6_V6ONLY)
struct sockaddr *sa;
u_char buf[NGX_SOCKADDR_STRLEN];
sa = (struct sockaddr *) ls->sockaddr;
if (sa->sa_family == AF_INET6) {
if (ngx_strcmp(&value[i].data[10], "n") == 0) {
ls->ipv6only = 1;
} else if (ngx_strcmp(&value[i].data[10], "ff") == 0) {
ls->ipv6only = 0;
} else {
ngx_conf_log_error(NGX_LOG_EMERG, cf, 0,
"invalid ipv6only flags \"%s\"",
&value[i].data[9]);
return NGX_CONF_ERROR;
}
ls->bind = 1;
} else {
len = ngx_sock_ntop(sa, buf, NGX_SOCKADDR_STRLEN, 1);
ngx_conf_log_error(NGX_LOG_EMERG, cf, 0,
"ipv6only is not supported "
"on addr \"%*s\", ignored", len, buf);
}
continue;
#else
ngx_conf_log_error(NGX_LOG_EMERG, cf, 0,
"bind ipv6only is not supported "
"on this platform");
return NGX_CONF_ERROR;
#endif
}
if (ngx_strcmp(value[i].data, "ssl") == 0) {
#if (NGX_TCP_SSL)
ls->ssl = 1;
continue;
#else
ngx_conf_log_error(NGX_LOG_EMERG, cf, 0,
"the \"ssl\" parameter requires "
"ngx_tcp_ssl_module");
return NGX_CONF_ERROR;
#endif
}
if (ngx_strncmp(value[i].data, "so_keepalive=", 13) == 0) {
if (ngx_strcmp(&value[i].data[13], "on") == 0) {
ls->so_keepalive = 1;
} else if (ngx_strcmp(&value[i].data[13], "off") == 0) {
ls->so_keepalive = 2;
} else {
#if (NGX_HAVE_KEEPALIVE_TUNABLE)
u_char *p, *end;
ngx_str_t s;
end = value[i].data + value[i].len;
s.data = value[i].data + 13;
p = ngx_strlchr(s.data, end, ':');
if (p == NULL) {
p = end;
}
if (p > s.data) {
s.len = p - s.data;
ls->tcp_keepidle = ngx_parse_time(&s, 1);
if (ls->tcp_keepidle == (time_t) NGX_ERROR) {
goto invalid_so_keepalive;
}
}
s.data = (p < end) ? (p + 1) : end;
p = ngx_strlchr(s.data, end, ':');
if (p == NULL) {
p = end;
}
if (p > s.data) {
s.len = p - s.data;
ls->tcp_keepintvl = ngx_parse_time(&s, 1);
if (ls->tcp_keepintvl == (time_t) NGX_ERROR) {
goto invalid_so_keepalive;
}
}
s.data = (p < end) ? (p + 1) : end;
if (s.data < end) {
s.len = end - s.data;
ls->tcp_keepcnt = ngx_atoi(s.data, s.len);
if (ls->tcp_keepcnt == NGX_ERROR) {
goto invalid_so_keepalive;
}
}
if (ls->tcp_keepidle == 0 && ls->tcp_keepintvl == 0
&& ls->tcp_keepcnt == 0)
{
goto invalid_so_keepalive;
}
ls->so_keepalive = 1;
#else
ngx_conf_log_error(NGX_LOG_EMERG, cf, 0,
"the \"so_keepalive\" parameter accepts "
"only \"on\" or \"off\" on this platform");
return NGX_CONF_ERROR;
#endif
}
ls->bind = 1;
continue;
#if (NGX_HAVE_KEEPALIVE_TUNABLE)
invalid_so_keepalive:
ngx_conf_log_error(NGX_LOG_EMERG, cf, 0,
"invalid so_keepalive value: \"%s\"",
&value[i].data[13]);
return NGX_CONF_ERROR;
#endif
}
ngx_conf_log_error(NGX_LOG_EMERG, cf, 0,
"the invalid \"%V\" parameter", &value[i]);
return NGX_CONF_ERROR;
}
return NGX_CONF_OK;
}
static ngx_int_t
ngx_tcp_instruct_unix_listen(ngx_cycle_t *cycle)
{
ngx_tcp_core_main_conf_t *cmcf;
ngx_tcp_conf_ctx_t *ctx;
unix_listening_info_t *unix_info;
size_t len;
ngx_listening_t *ls;
ngx_url_t u;
struct sockaddr *sa;
u_char text[NGX_SOCKADDR_STRLEN + 1];
ctx = (ngx_tcp_conf_ctx_t *)ngx_get_conf(cycle->conf_ctx, ngx_tcp_module);
cmcf = ngx_tcp_get_module_main_conf(ctx, ngx_tcp_core_module);
ngx_memzero(&u, sizeof(ngx_url_t));
ngx_conf_full_name(cycle, &cmcf->unix_url, 0);
/* ngx_pid to string len is less than 21 - strlen("unix:") */
u.url.data = ngx_pcalloc(cycle->pool, cmcf->unix_url.len + 21);
ngx_sprintf(u.url.data, "%s%V%d", "unix:", &cmcf->unix_url, ngx_pid);
u.url.len = ngx_strlen(u.url.data);
u.listen = 1;
cmcf->unix_url = u.url;
ngx_log_error(NGX_LOG_INFO, cycle->log, 0,
"ngx_tcp_instruct_unix_listen|unix_url=%V,len=%d",
&u.url, u.url.len);
if (ngx_parse_url(cycle->pool, &u) != NGX_OK) {
if (u.err) {
ngx_log_error(NGX_LOG_EMERG, cycle->log, 0,
"%s in \"%V\" of the \"listen\" directive",
u.err, &u.url);
}
return NGX_ERROR;
}
unix_info = cmcf->socketfd_shm->info->listening_unix_info + ngx_process_slot;
ngx_memzero(unix_info, sizeof(unix_listening_info_t));
unix_info->len = u.url.len;
ngx_memcpy(unix_info->unix_url, u.url.data, u.url.len);
ls = ngx_pcalloc(cycle->pool, sizeof(ngx_listening_t));
if (ls == NULL) {
goto failed;
}
sa = ngx_pcalloc(cycle->pool, u.socklen);
if (sa == NULL) {
goto failed;
}
ngx_memcpy(sa, u.sockaddr, u.socklen);
ls->sockaddr = sa;
ls->socklen = u.socklen;
#if nginx_version >= 1006000
len = ngx_sock_ntop(sa, u.socklen, text, NGX_SOCKADDR_STRLEN, 1);
#else
len = ngx_sock_ntop(sa, text, NGX_SOCKADDR_STRLEN, 1);
#endif
ls->addr_text.len = len;
ls->addr_text_max_len = NGX_UNIX_ADDRSTRLEN;
len++;
ls->addr_text.data = ngx_pcalloc(cycle->pool, len);
if (ls->addr_text.data == NULL) {
goto failed;
}
ngx_memcpy(ls->addr_text.data, text, len);
ls->fd = (ngx_socket_t) -1;
ls->type = SOCK_STREAM;
ls->backlog = NGX_LISTEN_BACKLOG;
ls->rcvbuf = -1;
ls->sndbuf = -1;
#if (NGX_HAVE_SETFIB)
ls->setfib = -1;
#endif
ls->addr_ntop = 1;
ls->handler = ngx_tcp_init_connection;
ls->pool_size = 8192;
ls->logp = &cycle->new_log;
ls->log.data = &ls->addr_text;
ls->log.handler = ngx_accept_log_error;
cmcf->ls = ls;
return NGX_OK;
failed:
return NGX_ERROR;
}
static char *
ngx_tcp_core_protocol(ngx_conf_t *cf, ngx_command_t *cmd, void *conf)
{
ngx_tcp_core_srv_conf_t *cscf = conf;
ngx_str_t *value;
ngx_uint_t m;
ngx_tcp_module_t *module;
value = cf->args->elts;
for (m = 0; ngx_modules[m]; m++) {
if (ngx_modules[m]->type != NGX_TCP_MODULE) {
continue;
}
module = ngx_modules[m]->ctx;
if (module->protocol
&& ngx_strcmp(module->protocol->name.data, value[1].data) == 0)
{
cscf->protocol = module->protocol;
return NGX_CONF_OK;
}
}
ngx_conf_log_error(NGX_LOG_EMERG, cf, 0,
"unknown protocol \"%V\"", &value[1]);
return NGX_CONF_ERROR;
}
static char *
ngx_tcp_core_resolver(ngx_conf_t *cf, ngx_command_t *cmd, void *conf)
{
ngx_tcp_core_srv_conf_t *cscf = conf;
ngx_str_t *value;
value = cf->args->elts;
if (cscf->resolver != NGX_CONF_UNSET_PTR) {
return "is duplicate";
}
if (ngx_strcmp(value[1].data, "off") == 0) {
cscf->resolver = NULL;
return NGX_CONF_OK;
}
cscf->resolver = ngx_resolver_create(cf, &value[1], cf->args->nelts - 1);
if (cscf->resolver == NULL) {
return NGX_CONF_ERROR;
}
return NGX_CONF_OK;
}
static ngx_int_t
ngx_tcp_process_init(ngx_cycle_t *cycle)
{
ngx_int_t rc;
ngx_tcp_core_main_conf_t *cmcf;
ngx_tcp_conf_ctx_t *ctx;
ngx_listening_t *ls;
ngx_connection_t *c;
ngx_event_t *rev;
ngx_tcp_port_t *mport;
ngx_tcp_in_addr_t *addrs;
rc = ngx_tcp_instruct_unix_listen(cycle);
if (NGX_OK != rc) {
return rc;
}
ctx = (ngx_tcp_conf_ctx_t *)ngx_get_conf(cycle->conf_ctx, ngx_tcp_module);
cmcf = ngx_tcp_get_module_main_conf(ctx, ngx_tcp_core_module);
ls = cmcf->ls;
rc = ngx_tcp_open_listening_socket(ls);
if (NGX_OK != rc) {
return rc;
}
mport = ngx_palloc(cycle->pool, sizeof(ngx_tcp_port_t));
if (mport == NULL) {
return NGX_ERROR;
}
mport->naddrs = 1;
mport->addrs = ngx_pcalloc(cycle->pool,
mport->naddrs * sizeof(ngx_tcp_in_addr_t));
if (mport->addrs == NULL) {
return NGX_ERROR;
}
addrs = mport->addrs;
addrs->conf.ctx = ctx;
addrs->conf.addr_text= cmcf->unix_url;
ls->servers = mport;
if (cmcf->error_log == NULL) {
ls->logp = cycle->log;
} else {
ls->logp = cmcf->error_log;
}
ls->log = *(ls->logp);
ls->log.data = &ls->addr_text;
ls->log.handler = ngx_accept_log_error;
c = ngx_get_connection(ls->fd, cycle->log);
// c->log = &ls->log;
c->log = ls->logp;
c->listening = ls;
ls->connection = c;
rev = c->read;
rev->log = c->log;
rev->accept = 1;
#if (NGX_HAVE_DEFERRED_ACCEPT)
rev->deferred_accept = ls->deferred_accept;