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clixon/apps/restconf/restconf_main.c
Olof hagsand ee329ee382 * RESTCONF "depth" query parameter supported 
* C API change: Added `depth` parameter to function `clicon_xml2cbuf`, default is -1.
2019-08-17 10:54:13 +02:00

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/*
*
***** BEGIN LICENSE BLOCK *****
Copyright (C) 2009-2019 Olof Hagsand
This file is part of CLIXON.
Licensed 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.
Alternatively, the contents of this file may be used under the terms of
the GNU General Public License Version 3 or later (the "GPL"),
in which case the provisions of the GPL are applicable instead
of those above. If you wish to allow use of your version of this file only
under the terms of the GPL, and not to allow others to
use your version of this file under the terms of Apache License version 2,
indicate your decision by deleting the provisions above and replace them with
the notice and other provisions required by the GPL. If you do not delete
the provisions above, a recipient may use your version of this file under
the terms of any one of the Apache License version 2 or the GPL.
***** END LICENSE BLOCK *****
*/
/*
* This program should be run as user www-data
*
* See draft-ietf-netconf-restconf-13.txt [draft]
* sudo apt-get install libfcgi-dev
* gcc -o fastcgi fastcgi.c -lfcgi
* sudo su -c "/www-data/clixon_restconf -D 1 -f /usr/local/etc/example.xml " -s /bin/sh www-data
* This is the interface:
* api/data/profile=<name>/metric=<name> PUT data:enable=<flag>
* api/test
*/
#ifdef HAVE_CONFIG_H
#include "clixon_config.h" /* generated by config & autoconf */
#endif
#include <stdlib.h>
#include <string.h>
#include <unistd.h>
#include <errno.h>
#include <signal.h>
#include <syslog.h>
#include <fcntl.h>
#include <time.h>
#include <limits.h>
#include <signal.h>
#include <sys/time.h>
#include <sys/wait.h>
#include <libgen.h>
#include <sys/stat.h> /* chmod */
/* cligen */
#include <cligen/cligen.h>
/* clicon */
#include <clixon/clixon.h>
#include <fcgiapp.h> /* Need to be after clixon_xml.h due to attribute format */
/* restconf */
#include "restconf_lib.h"
#include "restconf_methods.h"
#include "restconf_methods_get.h"
#include "restconf_methods_post.h"
#include "restconf_stream.h"
/* Command line options to be passed to getopt(3) */
#define RESTCONF_OPTS "hD:f:l:p:d:y:a:u:o:"
/* RESTCONF enables deployments to specify where the RESTCONF API is
located. The client discovers this by getting the "/.well-known/host-meta"
resource
*/
#define RESTCONF_WELL_KNOWN "/.well-known/host-meta"
/*! Generic REST method, GET, PUT, DELETE, etc
* @param[in] h CLIXON handle
* @param[in] r Fastcgi request handle
* @param[in] api_path According to restconf (Sec 3.5.1.1 in [draft])
* @param[in] pcvec Vector of path ie DOCUMENT_URI element
* @param[in] pi Offset, where to start pcvec
* @param[in] qvec Vector of query string (QUERY_STRING)
* @param[in] dvec Stream input daat
* @param[in] pretty Set to 1 for pretty-printed xml/json output
* @param[in] media_in Input media
* @param[in] media_out Output media
*/
static int
api_data(clicon_handle h,
FCGX_Request *r,
char *api_path,
cvec *pcvec,
int pi,
cvec *qvec,
char *data,
int pretty,
restconf_media media_out)
{
int retval = -1;
char *request_method;
clicon_debug(1, "%s", __FUNCTION__);
request_method = FCGX_GetParam("REQUEST_METHOD", r->envp);
clicon_debug(1, "%s method:%s", __FUNCTION__, request_method);
if (strcmp(request_method, "OPTIONS")==0)
retval = api_data_options(h, r);
else if (strcmp(request_method, "HEAD")==0)
retval = api_data_head(h, r, pcvec, pi, qvec, pretty, media_out);
else if (strcmp(request_method, "GET")==0)
retval = api_data_get(h, r, pcvec, pi, qvec, pretty, media_out);
else if (strcmp(request_method, "POST")==0)
retval = api_data_post(h, r, api_path, pcvec, pi, qvec, data, pretty, media_out);
else if (strcmp(request_method, "PUT")==0)
retval = api_data_put(h, r, api_path, pcvec, pi, qvec, data, pretty, media_out);
else if (strcmp(request_method, "PATCH")==0)
retval = api_data_patch(h, r, api_path, pcvec, pi, qvec, data, pretty, media_out);
else if (strcmp(request_method, "DELETE")==0)
retval = api_data_delete(h, r, api_path, pi, pretty, media_out);
else
retval = restconf_notfound(r);
clicon_debug(1, "%s retval:%d", __FUNCTION__, retval);
return retval;
}
/*! Operations REST method, POST
* @param[in] h CLIXON handle
* @param[in] r Fastcgi request handle
* @param[in] path According to restconf (Sec 3.5.1.1 in [draft])
* @param[in] pcvec Vector of path ie DOCUMENT_URI element
* @param[in] pi Offset, where to start pcvec
* @param[in] qvec Vector of query string (QUERY_STRING)
* @param[in] data Stream input data
* @param[in] media_out Output media
*/
static int
api_operations(clicon_handle h,
FCGX_Request *r,
char *path,
cvec *pcvec,
int pi,
cvec *qvec,
char *data,
int pretty,
restconf_media media_out)
{
int retval = -1;
char *request_method;
clicon_debug(1, "%s", __FUNCTION__);
request_method = FCGX_GetParam("REQUEST_METHOD", r->envp);
clicon_debug(1, "%s method:%s", __FUNCTION__, request_method);
if (strcmp(request_method, "GET")==0)
retval = api_operations_get(h, r, path, pcvec, pi, qvec, data, pretty, media_out);
else if (strcmp(request_method, "POST")==0)
retval = api_operations_post(h, r, path, pcvec, pi, qvec, data,
pretty, media_out);
else
retval = restconf_notfound(r);
return retval;
}
/*! Determine the root of the RESTCONF API
* @param[in] h Clicon handle
* @param[in] r Fastcgi request handle
* @note Hardcoded to "/restconf"
* Return see RFC8040 3.1 and RFC7320
* In line with the best practices defined by [RFC7320], RESTCONF
* enables deployments to specify where the RESTCONF API is located.
*/
static int
api_well_known(clicon_handle h,
FCGX_Request *r)
{
clicon_debug(1, "%s", __FUNCTION__);
FCGX_FPrintF(r->out, "Cache-Control: no-cache\r\n");
FCGX_FPrintF(r->out, "Content-Type: application/xrd+xml\r\n");
FCGX_FPrintF(r->out, "\r\n");
FCGX_SetExitStatus(200, r->out); /* OK */
FCGX_FPrintF(r->out, "<XRD xmlns='http://docs.oasis-open.org/ns/xri/xrd-1.0'>\n");
FCGX_FPrintF(r->out, " <Link rel='restconf' href='/restconf'/>\n");
FCGX_FPrintF(r->out, "</XRD>\r\n");
return 0;
}
/*! Retrieve the Top-Level API Resource
* @param[in] h Clicon handle
* @param[in] r Fastcgi request handle
* @note Only returns null for operations and data,...
* See RFC8040 3.3
*/
static int
api_root(clicon_handle h,
FCGX_Request *r,
int pretty,
restconf_media media_out)
{
int retval = -1;
cxobj *xt = NULL;
cbuf *cb = NULL;
yang_stmt *yspec;
clicon_debug(1, "%s", __FUNCTION__);
if ((yspec = clicon_dbspec_yang(h)) == NULL){
clicon_err(OE_FATAL, 0, "No DB_SPEC");
goto done;
}
FCGX_SetExitStatus(200, r->out); /* OK */
FCGX_FPrintF(r->out, "Cache-Control: no-cache\r\n");
FCGX_FPrintF(r->out, "Content-Type: %s\r\n", restconf_media_int2str(media_out));
FCGX_FPrintF(r->out, "\r\n");
if (xml_parse_string("<restconf xmlns=\"urn:ietf:params:xml:ns:yang:ietf-restconf\"><data/><operations/><yang-library-version>2016-06-21</yang-library-version></restconf>", NULL, &xt) < 0)
goto done;
if (xml_apply(xt, CX_ELMNT, xml_spec_populate, yspec) < 0)
goto done;
if ((cb = cbuf_new()) == NULL){
clicon_err(OE_XML, errno, "cbuf_new");
goto done;
}
if (xml_rootchild(xt, 0, &xt) < 0)
goto done;
switch (media_out){
case YANG_DATA_XML:
if (clicon_xml2cbuf(cb, xt, 0, pretty, -1) < 0)
goto done;
break;
case YANG_DATA_JSON:
if (xml2json_cbuf(cb, xt, pretty) < 0)
goto done;
break;
default:
break;
}
FCGX_FPrintF(r->out, "%s", cb?cbuf_get(cb):"");
FCGX_FPrintF(r->out, "\r\n\r\n");
retval = 0;
done:
if (cb)
cbuf_free(cb);
if (xt)
xml_free(xt);
return retval;
}
/*!
* See https://tools.ietf.org/html/rfc7895
*/
static int
api_yang_library_version(clicon_handle h,
FCGX_Request *r,
int pretty,
restconf_media media_out)
{
int retval = -1;
cxobj *xt = NULL;
cbuf *cb = NULL;
char *ietf_yang_library_revision = "2016-06-21"; /* XXX */
clicon_debug(1, "%s", __FUNCTION__);
FCGX_SetExitStatus(200, r->out); /* OK */
FCGX_FPrintF(r->out, "Cache-Control: no-cache\r\n");
FCGX_FPrintF(r->out, "Content-Type: %s\r\n", restconf_media_int2str(media_out));
FCGX_FPrintF(r->out, "\r\n");
if (xml_parse_va(&xt, NULL, "<yang-library-version>%s</yang-library-version>", ietf_yang_library_revision) < 0)
goto done;
if (xml_rootchild(xt, 0, &xt) < 0)
goto done;
if ((cb = cbuf_new()) == NULL){
goto done;
}
switch (media_out){
case YANG_DATA_XML:
if (clicon_xml2cbuf(cb, xt, 0, pretty, -1) < 0)
goto done;
break;
case YANG_DATA_JSON:
if (xml2json_cbuf(cb, xt, pretty) < 0)
goto done;
break;
default:
break;
}
clicon_debug(1, "%s cb%s", __FUNCTION__, cbuf_get(cb));
FCGX_FPrintF(r->out, "%s\n", cb?cbuf_get(cb):"");
FCGX_FPrintF(r->out, "\n\n");
retval = 0;
done:
if (cb)
cbuf_free(cb);
if (xt)
xml_free(xt);
return retval;
}
/*! Process a FastCGI request
* @param[in] r Fastcgi request handle
*/
static int
api_restconf(clicon_handle h,
FCGX_Request *r)
{
int retval = -1;
char *path;
char *query;
char *method;
char **pvec = NULL;
int pn;
cvec *qvec = NULL;
cvec *dvec = NULL;
cvec *pcvec = NULL; /* for rest api */
cbuf *cb = NULL;
char *data;
int authenticated = 0;
char *media_str = NULL;
restconf_media media_out = YANG_DATA_JSON;
int pretty;
cbuf *cbret = NULL;
cxobj *xret = NULL;
cxobj *xerr;
clicon_debug(1, "%s", __FUNCTION__);
path = restconf_uripath(r);
query = FCGX_GetParam("QUERY_STRING", r->envp);
pretty = clicon_option_bool(h, "CLICON_RESTCONF_PRETTY");
/* Get media for output (proactive negotiation) RFC7231 by using
* Accept:. This is for methods that have output, such as GET,
* operation POST, etc
* If accept is * default is yang-json
*/
if ((media_str = FCGX_GetParam("HTTP_ACCEPT", r->envp)) == NULL){
// retval = restconf_unsupported_media(r);
// goto done;
}
else if ((media_out = restconf_media_str2int(media_str)) == -1){
if (strcmp(media_str, "*/*") == 0) /* catch-all */
media_out = YANG_DATA_JSON;
else{
retval = restconf_unsupported_media(r);
goto done;
}
}
clicon_debug(1, "%s ACCEPT: %s %s", __FUNCTION__, media_str, restconf_media_int2str(media_out));
if ((pvec = clicon_strsep(path, "/", &pn)) == NULL)
goto done;
/* Sanity check of path. Should be /restconf/ */
if (pn < 2){
restconf_notfound(r);
goto ok;
}
if (strlen(pvec[0]) != 0){
retval = restconf_notfound(r);
goto done;
}
if (strcmp(pvec[1], RESTCONF_API)){
retval = restconf_notfound(r);
goto done;
}
restconf_test(r, 1);
if (pn == 2){
retval = api_root(h, r, pretty, media_out);
goto done;
}
if ((method = pvec[2]) == NULL){
retval = restconf_notfound(r);
goto done;
}
clicon_debug(1, "%s: method=%s", __FUNCTION__, method);
if (str2cvec(query, '&', '=', &qvec) < 0)
goto done;
if (str2cvec(path, '/', '=', &pcvec) < 0) /* rest url eg /album=ricky/foo */
goto done;
/* data */
if ((cb = readdata(r)) == NULL)
goto done;
data = cbuf_get(cb);
clicon_debug(1, "%s DATA=%s", __FUNCTION__, data);
if (str2cvec(data, '&', '=', &dvec) < 0)
goto done;
/* If present, check credentials. See "plugin_credentials" in plugin
* See RFC 8040 section 2.5
*/
if ((authenticated = clixon_plugin_auth(h, r)) < 0)
goto done;
clicon_debug(1, "%s auth:%d %s", __FUNCTION__, authenticated, clicon_username_get(h));
/* If set but no user, we set a dummy user */
if (authenticated){
if (clicon_username_get(h) == NULL)
clicon_username_set(h, "none");
}
else{
if (netconf_access_denied_xml(&xret, "protocol", "The requested URL was unauthorized") < 0)
goto done;
if ((xerr = xpath_first(xret, "//rpc-error")) != NULL){
if (api_return_err(h, r, xerr, pretty, media_out, 0) < 0)
goto done;
goto ok;
}
goto ok;
}
clicon_debug(1, "%s auth2:%d %s", __FUNCTION__, authenticated, clicon_username_get(h));
if (strcmp(method, "yang-library-version")==0){
if (api_yang_library_version(h, r, pretty, media_out) < 0)
goto done;
}
else if (strcmp(method, "data") == 0){ /* restconf, skip /api/data */
if (api_data(h, r, path, pcvec, 2, qvec, data,
pretty, media_out) < 0)
goto done;
}
else if (strcmp(method, "operations") == 0){ /* rpc */
if (api_operations(h, r, path, pcvec, 2, qvec, data,
pretty, media_out) < 0)
goto done;
}
else if (strcmp(method, "test") == 0)
restconf_test(r, 0);
else
restconf_notfound(r);
ok:
retval = 0;
done:
clicon_debug(1, "%s retval:%d", __FUNCTION__, retval);
if (pvec)
free(pvec);
if (dvec)
cvec_free(dvec);
if (qvec)
cvec_free(qvec);
if (pcvec)
cvec_free(pcvec);
if (cb)
cbuf_free(cb);
if (cbret)
cbuf_free(cbret);
if (xret)
xml_free(xret);
return retval;
}
/* Need global variable to for signal handler XXX */
static clicon_handle _CLICON_HANDLE = NULL;
/*! Signall terminates process
*/
static void
restconf_sig_term(int arg)
{
static int i=0;
if (i++ == 0)
clicon_log(LOG_NOTICE, "%s: %s: pid: %u Signal %d",
__PROGRAM__, __FUNCTION__, getpid(), arg);
else
exit(-1);
if (_CLICON_HANDLE){
stream_child_freeall(_CLICON_HANDLE);
restconf_terminate(_CLICON_HANDLE);
}
clicon_exit_set(); /* checked in event_loop() */
exit(-1);
}
/*! Callback for yang extensions ietf-restconf:yang-data
* @see ietf-restconf.yang
* @param[in] h Clixon handle
* @param[in] yext Yang node of extension
* @param[in] ys Yang node of (unknown) statement belonging to extension
* @retval 0 OK, all callbacks executed OK
* @retval -1 Error in one callback
*/
static int
restconf_main_extension_cb(clicon_handle h,
yang_stmt *yext,
yang_stmt *ys)
{
int retval = -1;
char *extname;
char *modname;
yang_stmt *ymod;
yang_stmt *yc;
yang_stmt *yn = NULL;
ymod = ys_module(yext);
modname = yang_argument_get(ymod);
extname = yang_argument_get(yext);
if (strcmp(modname, "ietf-restconf") != 0 || strcmp(extname, "yang-data") != 0)
goto ok;
clicon_debug(1, "%s Enabled extension:%s:%s", __FUNCTION__, modname, extname);
if ((yc = yang_find(ys, 0, NULL)) == NULL)
goto ok;
if ((yn = ys_dup(yc)) == NULL)
goto done;
if (yn_insert(yang_parent_get(ys), yn) < 0)
goto done;
ok:
retval = 0;
done:
return retval;
}
static void
restconf_sig_child(int arg)
{
int status;
int pid;
if ((pid = waitpid(-1, &status, 0)) != -1 && WIFEXITED(status))
stream_child_free(_CLICON_HANDLE, pid);
}
/*! Usage help routine
* @param[in] argv0 command line
* @param[in] h Clicon handle
*/
static void
usage(clicon_handle h,
char *argv0)
{
fprintf(stderr, "usage:%s [options]\n"
"where options are\n"
"\t-h \t\tHelp\n"
"\t-D <level>\tDebug level\n"
"\t-f <file>\tConfiguration file (mandatory)\n"
"\t-l <s|f<file>> \tLog on (s)yslog, (f)ile (syslog is default)\n"
"\t-p <dir>\tYang directory path (see CLICON_YANG_DIR)\n"
"\t-d <dir>\tSpecify restconf plugin directory dir (default: %s)\n"
"\t-y <file>\tLoad yang spec file (override yang main module)\n"
"\t-a UNIX|IPv4|IPv6\tInternal backend socket family\n"
"\t-u <path|addr>\tInternal socket domain path or IP addr (see -a)\n"
"\t-o \"<option>=<value>\"\tGive configuration option overriding config file (see clixon-config.yang)\n",
argv0,
clicon_restconf_dir(h)
);
exit(0);
}
/*! Main routine for fastcgi API
*/
int
main(int argc,
char **argv)
{
int retval = -1;
int sock;
char *argv0 = argv[0];
FCGX_Request request;
FCGX_Request *r = &request;
int c;
char *sockpath;
char *path;
clicon_handle h;
char *dir;
int logdst = CLICON_LOG_SYSLOG;
yang_stmt *yspec = NULL;
yang_stmt *yspecfg = NULL; /* For config XXX clixon bug */
char *stream_path;
int finish;
char *str;
clixon_plugin *cp = NULL;
/* In the startup, logs to stderr & debug flag set later */
clicon_log_init(__PROGRAM__, LOG_INFO, logdst);
/* Create handle */
if ((h = clicon_handle_init()) == NULL)
goto done;
_CLICON_HANDLE = h; /* for termination handling */
while ((c = getopt(argc, argv, RESTCONF_OPTS)) != -1)
switch (c) {
case 'h':
usage(h, argv[0]);
break;
case 'D' : /* debug */
if (sscanf(optarg, "%d", &debug) != 1)
usage(h, argv[0]);
break;
case 'f': /* override config file */
if (!strlen(optarg))
usage(h, argv[0]);
clicon_option_str_set(h, "CLICON_CONFIGFILE", optarg);
break;
case 'l': /* Log destination: s|e|o */
if ((logdst = clicon_log_opt(optarg[0])) < 0)
usage(h, argv[0]);
if (logdst == CLICON_LOG_FILE &&
strlen(optarg)>1 &&
clicon_log_file(optarg+1) < 0)
goto done;
break;
} /* switch getopt */
/*
* Logs, error and debug to stderr or syslog, set debug level
*/
clicon_log_init(__PROGRAM__, debug?LOG_DEBUG:LOG_INFO, logdst);
clicon_debug_init(debug, NULL);
clicon_log(LOG_NOTICE, "%s: %u Started", __PROGRAM__, getpid());
if (set_signal(SIGTERM, restconf_sig_term, NULL) < 0){
clicon_err(OE_DEMON, errno, "Setting signal");
goto done;
}
if (set_signal(SIGINT, restconf_sig_term, NULL) < 0){
clicon_err(OE_DEMON, errno, "Setting signal");
goto done;
}
if (set_signal(SIGCHLD, restconf_sig_child, NULL) < 0){
clicon_err(OE_DEMON, errno, "Setting signal");
goto done;
}
/* Create configure yang-spec */
if ((yspecfg = yspec_new()) == NULL)
goto done;
/* Find and read configfile */
if (clicon_options_main(h, yspecfg) < 0)
goto done;
clicon_config_yang_set(h, yspecfg);
stream_path = clicon_option_str(h, "CLICON_STREAM_PATH");
/* Now rest of options, some overwrite option file */
optind = 1;
opterr = 0;
while ((c = getopt(argc, argv, RESTCONF_OPTS)) != -1)
switch (c) {
case 'h' : /* help */
case 'D' : /* debug */
case 'f': /* config file */
case 'l': /* log */
break; /* see above */
case 'p' : /* yang dir path */
if (clicon_option_add(h, "CLICON_YANG_DIR", optarg) < 0)
goto done;
break;
case 'd': /* Plugin directory */
if (!strlen(optarg))
usage(h, argv[0]);
clicon_option_str_set(h, "CLICON_RESTCONF_DIR", optarg);
break;
case 'y' : /* Load yang spec file (override yang main module) */
clicon_option_str_set(h, "CLICON_YANG_MAIN_FILE", optarg);
break;
case 'a': /* internal backend socket address family */
clicon_option_str_set(h, "CLICON_SOCK_FAMILY", optarg);
break;
case 'u': /* internal backend socket unix domain path or ip host */
if (!strlen(optarg))
usage(h, argv[0]);
clicon_option_str_set(h, "CLICON_SOCK", optarg);
break;
case 'o':{ /* Configuration option */
char *val;
if ((val = index(optarg, '=')) == NULL)
usage(h, argv0);
*val++ = '\0';
if (clicon_option_add(h, optarg, val) < 0)
goto done;
break;
}
default:
usage(h, argv[0]);
break;
}
argc -= optind;
argv += optind;
/* Access the remaining argv/argc options (after --) w clicon-argv_get() */
clicon_argv_set(h, argv0, argc, argv);
/* Add (hardcoded) netconf features in case ietf-netconf loaded here
* Otherwise it is loaded in netconf_module_load below
*/
if (netconf_module_features(h) < 0)
goto done;
/* Create top-level yang spec and store as option */
if ((yspec = yspec_new()) == NULL)
goto done;
clicon_dbspec_yang_set(h, yspec);
/* Load restconf plugins before yangs are loaded (eg extension callbacks) */
if ((dir = clicon_restconf_dir(h)) != NULL)
if (clixon_plugins_load(h, CLIXON_PLUGIN_INIT, dir, NULL) < 0)
return -1;
/* Create a pseudo-plugin to create extension callback to set the ietf-routing
* yang-data extension for api-root top-level restconf function.
*/
if (clixon_pseudo_plugin(h, "pseudo restconf", &cp) < 0)
goto done;
cp->cp_api.ca_extension = restconf_main_extension_cb;
/* Load Yang modules
* 1. Load a yang module as a specific absolute filename */
if ((str = clicon_yang_main_file(h)) != NULL){
if (yang_spec_parse_file(h, str, yspec) < 0)
goto done;
}
/* 2. Load a (single) main module */
if ((str = clicon_yang_module_main(h)) != NULL){
if (yang_spec_parse_module(h, str, clicon_yang_module_revision(h),
yspec) < 0)
goto done;
}
/* 3. Load all modules in a directory */
if ((str = clicon_yang_main_dir(h)) != NULL){
if (yang_spec_load_dir(h, str, yspec) < 0)
goto done;
}
/* Load clixon lib yang module */
if (yang_spec_parse_module(h, "clixon-lib", NULL, yspec) < 0)
goto done;
/* Load yang module library, RFC7895 */
if (yang_modules_init(h) < 0)
goto done;
/* Load yang restconf module */
if (yang_spec_parse_module(h, "ietf-restconf", NULL, yspec)< 0)
goto done;
/* Add netconf yang spec, used as internal protocol */
if (netconf_module_load(h) < 0)
goto done;
/* Add system modules */
if (clicon_option_bool(h, "CLICON_STREAM_DISCOVERY_RFC8040") &&
yang_spec_parse_module(h, "ietf-restconf-monitoring", NULL, yspec)< 0)
goto done;
if (clicon_option_bool(h, "CLICON_STREAM_DISCOVERY_RFC5277") &&
yang_spec_parse_module(h, "clixon-rfc5277", NULL, yspec)< 0)
goto done;
/* Dump configuration options on debug */
if (debug)
clicon_option_dump(h, debug);
/* Call start function in all plugins before we go interactive
*/
if (clixon_plugin_start(h) < 0)
goto done;
if ((sockpath = clicon_option_str(h, "CLICON_RESTCONF_PATH")) == NULL){
clicon_err(OE_CFG, errno, "No CLICON_RESTCONF_PATH in clixon configure file");
goto done;
}
if (FCGX_Init() != 0){ /* How to cleanup memory after this? */
clicon_err(OE_CFG, errno, "FCGX_Init");
goto done;
}
clicon_debug(1, "restconf_main: Opening FCGX socket: %s", sockpath);
if ((sock = FCGX_OpenSocket(sockpath, 10)) < 0){
clicon_err(OE_CFG, errno, "FCGX_OpenSocket");
goto done;
}
if (clicon_socket_set(h, sock) < 0)
goto done;
/* umask settings may interfer: we want group to write: this is 774 */
if (chmod(sockpath, S_IRWXU|S_IRWXG|S_IROTH) < 0){
clicon_err(OE_UNIX, errno, "chmod");
goto done;
}
if (FCGX_InitRequest(r, sock, 0) != 0){
clicon_err(OE_CFG, errno, "FCGX_InitRequest");
goto done;
}
while (1) {
finish = 1; /* If zero, dont finish request, initiate new */
if (FCGX_Accept_r(r) < 0) {
clicon_err(OE_CFG, errno, "FCGX_Accept_r");
goto done;
}
clicon_debug(1, "------------");
if ((path = FCGX_GetParam("REQUEST_URI", r->envp)) != NULL){
clicon_debug(1, "path: %s", path);
if (strncmp(path, "/" RESTCONF_API, strlen("/" RESTCONF_API)) == 0)
api_restconf(h, r); /* This is the function */
else if (strncmp(path+1, stream_path, strlen(stream_path)) == 0) {
api_stream(h, r, stream_path, &finish);
}
else if (strncmp(path, RESTCONF_WELL_KNOWN, strlen(RESTCONF_WELL_KNOWN)) == 0) {
api_well_known(h, r); /* */
}
else{
clicon_debug(1, "top-level %s not found", path);
restconf_notfound(r);
}
}
else
clicon_debug(1, "NULL URI");
if (finish)
FCGX_Finish_r(r);
else{ /* A handler is forked so we initiate a new request after instead
of finnishing the old */
if (FCGX_InitRequest(r, sock, 0) != 0){
clicon_err(OE_CFG, errno, "FCGX_InitRequest");
goto done;
}
}
}
retval = 0;
done:
stream_child_freeall(h);
restconf_terminate(h);
return retval;
}
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