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NACM external file support. CLICON_NACM_FILE config option, if CLICON_NACM_MODE is external

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This commit is contained in:
Olof hagsand 2018-04-23 23:09:55 +02:00
parent d032dbe1cb
commit 602f5034b4
17 changed files with 867 additions and 39 deletions
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61
apps/backend/backend_main.c
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@ -260,6 +260,59 @@ plugin_start_useroptions(clicon_handle h,
return 0;
}
/*! Load external NACM file
*/
static int
nacm_load_external(clicon_handle h)
{
int retval = -1;
char *filename; /* NACM config file */
yang_spec *yspec = NULL;
cxobj *xt = NULL;
struct stat st;
FILE *f = NULL;
int fd;
filename = clicon_option_str(h, "CLICON_NACM_FILE");
if (filename == NULL || strlen(filename)==0){
clicon_err(OE_UNIX, errno, "CLICON_NACM_FILE not set in NACM external mode");
goto done;
}
if (stat(filename, &st) < 0){
clicon_err(OE_UNIX, errno, "%s", filename);
goto done;
}
if (!S_ISREG(st.st_mode)){
clicon_err(OE_UNIX, 0, "%s is not a regular file", filename);
goto done;
}
if ((f = fopen(filename, "r")) == NULL) {
clicon_err(OE_UNIX, errno, "configure file: %s", filename);
return -1;
}
if ((yspec = yspec_new()) == NULL)
goto done;
if (yang_parse(h, CLIXON_DATADIR, "ietf-netconf-acm", NULL, yspec) < 0)
goto done;
fd = fileno(f);
/* Read configfile */
if (xml_parse_file(fd, "</clicon>", yspec, &xt) < 0)
goto done;
if (xt == NULL){
clicon_err(OE_XML, 0, "No xml tree in %s", filename);
goto done;
}
if (backend_nacm_list_set(h, xt) < 0)
goto done;
retval = 0;
done:
if (yspec) /* The clixon yang-spec is not used after this */
yspec_free(yspec);
if (f)
fclose(f);
return retval;
}
/*! Merge xml in filename into database
*/
static int
@ -498,6 +551,7 @@ main(int argc,
int xml_cache;
int xml_pretty;
char *xml_format;
char *nacm_mode;
/* In the startup, logs to stderr & syslog and debug flag set later */
clicon_log_init(__PROGRAM__, LOG_INFO, CLICON_LOG_STDERR|CLICON_LOG_SYSLOG);
@ -551,7 +605,12 @@ main(int argc,
usage(argv[0], h);
return -1;
}
/* External NACM file? */
nacm_mode = clicon_option_str(h, "CLICON_NACM_MODE");
if (nacm_mode && strcmp(nacm_mode, "external") == 0)
if (nacm_load_external(h) < 0)
goto done;
/* Now run through the operational args */
opterr = 1;
optind = 1;