experiments/clixon
1
0
Fork 0
Code Issues Pull requests Projects Releases Packages Wiki Activity Actions

Merge branch 'master' of https://github.com/clicon/clixon

Browse source
This commit is contained in:
Olof hagsand 2019-05-14 14:11:43 +02:00
commit 0b0fef12cc
22 changed files with 663 additions and 249 deletions
Download patch file Download diff file Expand all files Collapse all files

9
CHANGELOG.md
View file

@ -53,6 +53,15 @@
### API changes on existing features (you may need to change your code)
* Clixon transaction mechanism has changed which may affect your backend plugin callbacks:
* Validate-only transactions are terminated by an `end` or `abort` callback. Now all started transactions are terminated either by an `end` or `abort` without exceptions
* Validate-only transactions used to be terminated by `complete`
* If a commit user callback fails, a new `revert` callback will be made to plugins that have made a succesful commit.
* Clixon used to play the (already made) commit callbacks in reverse order
* Clixon config option `CLICON_XMLDB_CACHE` renamed to `CLICON_DATASTORE_CACHE` and changed type from `boolean` to `datastore_cache`
* Change code from: `clicon_option_bool(h, "CLICON_XMLDB_CACHE")` to `clicon_datastore_cache(h) == DATASTORE_CACHE`
* Type `datastore_cache` have values: nocache, cache, or cache-zerocopy
* `xmldb_get1` removed (functionality merged with `xmldb_get`)
* Non-key list now not accepted in edit-config (before only on validation)
* Changed return values in internal functions
* These functions are affected: `netconf_trymerge`, `startup_module_state`, `yang_modules_state_get`

13
apps/backend/backend_client.c
View file

@ -336,7 +336,10 @@ from_client_get_config(clicon_handle h,
if ((xfilter = xml_find(xe, "filter")) != NULL)
if ((xpath = xml_find_value(xfilter, "select"))==NULL)
xpath="/";
if (xmldb_get(h, db, xpath, &xret, NULL) < 0){
/* Note xret can be pruned by nacm below (and change name),
* so zero-copy cant be used
*/
if (xmldb_get(h, db, xpath, 1, &xret, NULL) < 0){
if (netconf_operation_failed(cbret, "application", "read registry")< 0)
goto done;
goto ok;
@ -800,14 +803,16 @@ from_client_get(clicon_handle h,
if ((xfilter = xml_find(xe, "filter")) != NULL)
if ((xpath = xml_find_value(xfilter, "select"))==NULL)
xpath="/";
/* Get config */
if (xmldb_get(h, "running", xpath, &xret, NULL) < 0){
/* Get config
* Note xret can be pruned by nacm below and change name and
* metrged with state data, so zero-copy cant be used
*/
if (xmldb_get(h, "running", xpath, 1, &xret, NULL) < 0){
if (netconf_operation_failed(cbret, "application", "read registry")< 0)
goto done;
goto ok;
}
/* Get state data from plugins as defined by plugin_statedata(), if any */
assert(xret);
clicon_err_reset();
if ((ret = client_statedata(h, xpath, &xret)) < 0)
goto done;

82
apps/backend/backend_commit.c
View file

@ -182,7 +182,7 @@ startup_common(clicon_handle h,
if ((msd = modstate_diff_new()) == NULL)
goto done;
clicon_debug(1, "Reading startup config from %s", db);
if (xmldb_get1(h, db, "/", &xt, msd) < 0)
if (xmldb_get(h, db, "/", 0, &xt, msd) < 0)
goto done;
/* Clear flags xpath for get */
xml_apply0(xt, CX_ELMNT, (xml_applyfn_t*)xml_flag_reset,
@ -271,25 +271,26 @@ startup_validate(clicon_handle h,
/* Handcraft a transition with only target and add trees */
if ((td = transaction_new()) == NULL)
goto done;
if ((ret = startup_common(h, db, td, cbret)) < 0)
if ((ret = startup_common(h, db, td, cbret)) < 0){
plugin_transaction_abort(h, td);
goto done;
if (ret == 0)
}
if (ret == 0){
plugin_transaction_abort(h, td);
goto fail;
}
plugin_transaction_end(h, td);
/* Clear cached trees from default values and marking */
if (xmldb_get1_clear(h, db) < 0)
if (xmldb_get_clear(h, td->td_target) < 0)
goto done;
if (xtr){
*xtr = td->td_target;
*xtr = td->td_target;
td->td_target = NULL;
}
retval = 1;
done:
if (td){
if (clicon_option_bool(h, "CLICON_XMLDB_CACHE")){
/* xmldb_get1 requires free only if not cache */
td->td_target = NULL;
td->td_src = NULL;
}
xmldb_get_free(h, &td->td_target);
transaction_free(td);
}
return retval;
@ -332,7 +333,7 @@ startup_commit(clicon_handle h,
if (plugin_transaction_commit(h, td) < 0)
goto done;
/* Clear cached trees from default values and marking */
if (xmldb_get1_clear(h, db) < 0)
if (xmldb_get_clear(h, td->td_target) < 0)
goto done;
/* [Delete and] create running db */
@ -352,15 +353,12 @@ startup_commit(clicon_handle h,
goto fail;
/* 10. Call plugin transaction end callbacks */
plugin_transaction_end(h, td);
retval = 1;
done:
if (td){
if (clicon_option_bool(h, "CLICON_XMLDB_CACHE")){
/* xmldb_get1 requires free only if not cache */
td->td_target = NULL;
td->td_src = NULL;
}
if (retval < 1)
plugin_transaction_abort(h, td);
xmldb_get_free(h, &td->td_target);
transaction_free(td);
}
return retval;
@ -398,7 +396,7 @@ from_validate_common(clicon_handle h,
goto done;
}
/* This is the state we are going to */
if (xmldb_get1(h, candidate, "/", &td->td_target, NULL) < 0)
if (xmldb_get(h, candidate, "/", 0, &td->td_target, NULL) < 0)
goto done;
/* Clear flags xpath for get */
@ -416,7 +414,7 @@ from_validate_common(clicon_handle h,
/* 2. Parse xml trees
* This is the state we are going from */
if (xmldb_get1(h, "running", "/", &td->td_src, NULL) < 0)
if (xmldb_get(h, "running", "/", 0, &td->td_src, NULL) < 0)
goto done;
/* Clear flags xpath for get */
xml_apply0(td->td_src, CX_ELMNT, (xml_applyfn_t*)xml_flag_reset,
@ -521,9 +519,9 @@ candidate_commit(clicon_handle h,
goto done;
/* Clear cached trees from default values and marking */
if (xmldb_get1_clear(h, candidate) < 0)
if (xmldb_get_clear(h, td->td_target) < 0)
goto done;
if (xmldb_get1_clear(h, "running") < 0)
if (xmldb_get_clear(h, td->td_src) < 0)
goto done;
/* Optionally write (potentially modified) tree back to candidate
@ -556,14 +554,11 @@ candidate_commit(clicon_handle h,
retval = 1;
done:
/* In case of failure (or error), call plugin transaction termination callbacks */
if (retval < 1 && td)
plugin_transaction_abort(h, td);
if (td){
if (clicon_option_bool(h, "CLICON_XMLDB_CACHE")){
/* xmldb_get1 requires free only if not cache */
td->td_target = NULL;
td->td_src = NULL;
}
if (retval < 1)
plugin_transaction_abort(h, td);
xmldb_get_free(h, &td->td_target);
xmldb_get_free(h, &td->td_src);
transaction_free(td);
}
return retval;
@ -741,39 +736,40 @@ from_client_validate(clicon_handle h,
goto done;
/* Common steps (with commit) */
if ((ret = from_validate_common(h, db, td, cbret)) < 1){
clicon_debug(1, "Validate %s failed", db);
if (ret < 0){
if (netconf_operation_failed(cbret, "application", clicon_err_reason)< 0)
goto done;
}
plugin_transaction_abort(h, td);
if (netconf_operation_failed(cbret, "application", clicon_err_reason)< 0)
goto done;
goto ok;
}
/* Clear cached trees from default values and marking */
if (xmldb_get1_clear(h, db) < 0)
if (xmldb_get_clear(h, td->td_target) < 0)
goto done;
if (xmldb_get1_clear(h, "running") < 0)
if (xmldb_get_clear(h, td->td_src) < 0 ||
xmldb_get_clear(h, td->td_target) < 0){
plugin_transaction_abort(h, td);
goto done;
}
/* Optionally write (potentially modified) tree back to candidate */
if (clicon_option_bool(h, "CLICON_TRANSACTION_MOD")){
plugin_transaction_abort(h, td);
if ((ret = xmldb_put(h, "candidate", OP_REPLACE, td->td_target,
clicon_username_get(h), cbret)) < 0)
goto done;
goto ok;
}
cprintf(cbret, "<rpc-reply><ok/></rpc-reply>");
/* Call plugin transaction end callbacks */
plugin_transaction_end(h, td);
ok:
retval = 0;
done:
if (retval < 0 && td)
plugin_transaction_abort(h, td);
if (td){
if (clicon_option_bool(h, "CLICON_XMLDB_CACHE")){
/* xmldb_get1 requires free only if not cache */
td->td_target = NULL;
td->td_src = NULL;
}
transaction_free(td);
if (retval < 0)
plugin_transaction_abort(h, td);
xmldb_get_free(h, &td->td_target);
xmldb_get_free(h, &td->td_src);
transaction_free(td);
}
return retval;
} /* from_client_validate */

20
apps/backend/backend_plugin.c
View file

@ -295,28 +295,14 @@ plugin_transaction_revert(clicon_handle h,
int nr)
{
int retval = 0;
transaction_data_t tr; /* revert transaction */
clixon_plugin *cp = NULL;
trans_cb_t *fn;
/* Create a new reversed transaction from the original where src and target
are swapped */
memcpy(&tr, td, sizeof(tr));
tr.td_src = td->td_target;
tr.td_target = td->td_src;
tr.td_dlen = td->td_alen;
tr.td_dvec = td->td_avec;
tr.td_alen = td->td_dlen;
tr.td_avec = td->td_dvec;
tr.td_clen = td->td_clen;
tr.td_scvec = td->td_tcvec;
tr.td_tcvec = td->td_scvec;
while ((cp = clixon_plugin_each_revert(h, cp, nr)) != NULL) {
if ((fn = cp->cp_api.ca_trans_commit) == NULL)
if ((fn = cp->cp_api.ca_trans_revert) == NULL)
continue;
if ((retval = fn(h, (transaction_data)&tr)) < 0){
clicon_log(LOG_NOTICE, "%s: Plugin '%s' trans_commit revert callback failed",
if ((retval = fn(h, (transaction_data)td)) < 0){
clicon_log(LOG_NOTICE, "%s: Plugin '%s' trans_revert callback failed",
__FUNCTION__, cp->cp_name);
break;
}

8
apps/backend/backend_startup.c
View file

@ -102,13 +102,12 @@ db_merge(clicon_handle h,
cxobj *xt = NULL;
/* Get data as xml from db1 */
if (xmldb_get(h, (char*)db1, NULL, &xt, NULL) < 0)
if (xmldb_get(h, (char*)db1, NULL, 0, &xt, NULL) < 0)
goto done;
/* Merge xml into db2. Without commit */
retval = xmldb_put(h, (char*)db2, OP_MERGE, xt, clicon_username_get(h), cbret);
done:
if (xt)
xml_free(xt);
xmldb_get_free(h, &xt);
return retval;
}
@ -270,8 +269,7 @@ startup_extraxml(clicon_handle h,
ok:
retval = 1;
done:
if (xt && !clicon_option_bool(h, "CLICON_XMLDB_CACHE"))
xml_free(xt);
xmldb_get_free(h, &xt);
if (xmldb_delete(h, db) != 0 && errno != ENOENT)
return -1;
return retval;

40
doc/FAQ.md
View file

@ -15,7 +15,8 @@
* [How do I use restconf?](#how-do-i-use-restconf)
* [What about reference documentation?](#what-about-reference-documentation)
* [How is configuration data stored?](#how-is-configuration-data-stored)
* [What is validate and commit?](#what-is-validate-and-commit)
* [What is validate and commit?](#what-is-validate-and-commi)t
* [Does Clixon support transactions?](#does-clixon-support-transactions)
* [What is a Clixon configuration file?](#what-is-a-clixon-configuration-file)
* [How are Clixon configuration files found?](#how-are-clixon-configuration-files-found)
* [Can I modify clixon options at runtime?](#can-i-modify-clixon-options-at-runtime)
@ -227,6 +228,42 @@ A clixon developer writes commit functions to incrementaly upgrade a
system state based on configuration changes. Writing commit callbacks
is the core functionality of a clixon system.
## Does Clixon support transactions?
Yes. The netconf validation and commit operation is implemented in
Clixon by a transaction mechanism, which ensures that user-written
plugin callbacks are invoked atomically and revert on error. If you
have two plugins, for example, a transaction sequence looks like the
following:
```
Backend Plugin1 Plugin2
| | |
+--------->+--------->+ begin
| | |
+--------->+--------->+ validate
| | |
+--------->+--------->+ commit
| | |
+--------->+--------->+ end
```
If an error occurs in the commit call of Plugin2, for example,
the transaction is aborted and the commit reverted:
```
Backend Plugin1 Plugin2
| | |
+--------->+--------->+ begin
| | |
+--------->+--------->+ validate
| | |
+--------->+---->X + commit error
| | |
+--------->+ + revert
| | |
+--------->+--------->+ abort
```
## What is a Clixon configuration file?
Clixon options are stored in an XML configuration file. The default
@ -430,7 +467,6 @@ Each plugin is initiated with an API struct followed by a plugin init function a
```
For more info see [../example/main/README.md]
## How do I write a commit function?
In the example, you write a commit function in example_backend.c.
Every time a commit is made, transaction_commit() is called in the

2
example/main/README.md
View file

@ -14,7 +14,7 @@
## Content
This directory contains a Clixon example which includes a simple example. It contains the following files:
This directory contains a Clixon example used primarily for testing. It can be used as a basis for making new Clixon applications. But please consider also the minimal [hello](../hello) example as well. It contains the following files:
* `example.xml` The configuration file. See [yang/clixon-config@<date>.yang](../../yang/clixon-config@2019-03-05.yang) for the documentation of all available fields.
* `clixon-example@2019-01-13.yang` The yang spec of the example.
* `example_cli.cli` CLIgen specification.

28
example/main/example_backend.c
View file

@ -85,8 +85,7 @@ main_begin(clicon_handle h,
transaction_data td)
{
if (_transaction_log)
transaction_log(h, td, LOG_NOTICE, "begin");
transaction_log(h, td, LOG_NOTICE, __FUNCTION__);
return 0;
}
/*! This is called on validate (and commit). Check validity of candidate
@ -96,7 +95,7 @@ main_validate(clicon_handle h,
transaction_data td)
{
if (_transaction_log)
transaction_log(h, td, LOG_NOTICE, "validate");
transaction_log(h, td, LOG_NOTICE, __FUNCTION__);
return 0;
}
@ -105,7 +104,7 @@ main_complete(clicon_handle h,
transaction_data td)
{
if (_transaction_log)
transaction_log(h, td, LOG_NOTICE, "complete");
transaction_log(h, td, LOG_NOTICE, __FUNCTION__);
return 0;
}
@ -113,7 +112,7 @@ main_complete(clicon_handle h,
*/
int
main_commit(clicon_handle h,
transaction_data td)
transaction_data td)
{
cxobj *target = transaction_target(td); /* wanted XML tree */
cxobj **vec = NULL;
@ -121,7 +120,8 @@ main_commit(clicon_handle h,
size_t len;
if (_transaction_log)
transaction_log(h, td, LOG_NOTICE, "commit");
transaction_log(h, td, LOG_NOTICE, __FUNCTION__);
/* Get all added i/fs */
if (xpath_vec_flag(target, "//interface", XML_FLAG_ADD, &vec, &len) < 0)
return -1;
@ -134,12 +134,21 @@ main_commit(clicon_handle h,
return 0;
}
int
main_revert(clicon_handle h,
transaction_data td)
{
if (_transaction_log)
transaction_log(h, td, LOG_NOTICE, __FUNCTION__);
return 0;
}
int
main_end(clicon_handle h,
transaction_data td)
{
if (_transaction_log)
transaction_log(h, td, LOG_NOTICE, "end");
transaction_log(h, td, LOG_NOTICE, __FUNCTION__);
return 0;
}
@ -148,7 +157,7 @@ main_abort(clicon_handle h,
transaction_data td)
{
if (_transaction_log)
transaction_log(h, td, LOG_NOTICE, "abort");
transaction_log(h, td, LOG_NOTICE, __FUNCTION__);
return 0;
}
@ -568,6 +577,7 @@ static clixon_plugin_api api = {
.ca_trans_validate=main_validate, /* trans validate */
.ca_trans_complete=main_complete, /* trans complete */
.ca_trans_commit=main_commit, /* trans commit */
.ca_trans_revert=main_revert, /* trans revert */
.ca_trans_end=main_end, /* trans end */
.ca_trans_abort=main_abort /* trans abort */
};
@ -594,7 +604,7 @@ clixon_plugin_init(clicon_handle h)
goto done;
opterr = 0;
optind = 1;
while ((c = getopt(argc, argv, "rsut")) != -1)
while ((c = getopt(argc, argv, "rsut:")) != -1)
switch (c) {
case 'r':
_reset = 1;

143
example/main/example_backend_nacm.c
View file

@ -32,11 +32,16 @@
***** END LICENSE BLOCK *****
*
* IETF yang routing example
* Secondary backend for testing more than one backend plugin
* Secondary backend for testing more than one backend plugin, with the following
* features:
* - nacm
* - transaction test
* The transaction test is test/test_transaction.sh where a user-error is triggered
* by this plugin if started with -- -t <xpath>. _transaction_xpath is then set
* and triggers a validation error if it matches. The error also toggles between
* validation and commit errors.
*/
#include <stdio.h>
#include <stdlib.h>
#include <string.h>
@ -55,6 +60,97 @@
/* These include signatures for plugin and transaction callbacks. */
#include <clixon/clixon_backend.h>
/*! Variable to control transaction logging (for debug)
* If set, call syslog for every transaction callback
*/
static int _transaction_log = 0;
/*! Variable for failing validate and commit, if set, fail on validate vs commit
*/
static char * _transaction_xpath = NULL;
static int _transaction_error_toggle = 0; /* fail at validate vs commit */
int
nacm_begin(clicon_handle h,
transaction_data td)
{
if (_transaction_log)
transaction_log(h, td, LOG_NOTICE, __FUNCTION__);
return 0;
}
/*! This is called on validate (and commit). Check validity of candidate
*/
int
nacm_validate(clicon_handle h,
transaction_data td)
{
if (_transaction_log){
transaction_log(h, td, LOG_NOTICE, __FUNCTION__);
if (_transaction_error_toggle==0 &&
xpath_first(transaction_target(td), "%s", _transaction_xpath)){
_transaction_error_toggle=1; /* toggle if triggered */
clicon_err(OE_XML, 0, "User error");
return -1; /* induce fail */
}
}
return 0;
}
int
nacm_complete(clicon_handle h,
transaction_data td)
{
if (_transaction_log)
transaction_log(h, td, LOG_NOTICE, __FUNCTION__);
return 0;
}
/*! This is called on commit. Identify modifications and adjust machine state
*/
int
nacm_commit(clicon_handle h,
transaction_data td)
{
cxobj *target = transaction_target(td); /* wanted XML tree */
if (_transaction_log){
transaction_log(h, td, LOG_NOTICE, __FUNCTION__);
if (_transaction_error_toggle==1 &&
xpath_first(target, "%s", _transaction_xpath)){
_transaction_error_toggle=0; /* toggle if triggered */
clicon_err(OE_XML, 0, "User error");
return -1; /* induce fail */
}
}
return 0;
}
int
nacm_revert(clicon_handle h,
transaction_data td)
{
if (_transaction_log)
transaction_log(h, td, LOG_NOTICE, __FUNCTION__);
return 0;
}
int
nacm_end(clicon_handle h,
transaction_data td)
{
if (_transaction_log)
transaction_log(h, td, LOG_NOTICE, __FUNCTION__);
return 0;
}
int
nacm_abort(clicon_handle h,
transaction_data td)
{
if (_transaction_log)
transaction_log(h, td, LOG_NOTICE, __FUNCTION__);
return 0;
}
/*! Called to get NACM state data
* @param[in] h Clicon handle
@ -88,21 +184,21 @@ nacm_statedata(clicon_handle h,
return retval;
}
int
plugin_start(clicon_handle h)
{
return 0;
}
clixon_plugin_api *clixon_plugin_init(clicon_handle h);
static clixon_plugin_api api = {
"nacm", /* name */ /*--- Common fields. ---*/
clixon_plugin_init, /* init */
plugin_start, /* start */
NULL, /* start */
NULL, /* exit */
.ca_reset=NULL, /* reset */
.ca_statedata=nacm_statedata, /* statedata */
.ca_trans_begin=nacm_begin, /* trans begin */
.ca_trans_validate=nacm_validate, /* trans validate */
.ca_trans_complete=nacm_complete, /* trans complete */
.ca_trans_commit=nacm_commit, /* trans commit */
.ca_trans_revert=nacm_revert, /* trans revert */
.ca_trans_end=nacm_end, /* trans end */
.ca_trans_abort=nacm_abort /* trans abort */
};
/*! Backend plugin initialization
@ -113,13 +209,34 @@ static clixon_plugin_api api = {
clixon_plugin_api *
clixon_plugin_init(clicon_handle h)
{
char *nacm_mode;
char *nacm_mode;
int argc; /* command-line options (after --) */
char **argv;
int c;
clicon_debug(1, "%s backend nacm", __FUNCTION__);
/* Get user command-line options (after --) */
if (clicon_argv_get(h, &argc, &argv) < 0)
goto done;
opterr = 0;
optind = 1;
while ((c = getopt(argc, argv, "rsut:")) != -1)
switch (c) {
case 't': /* transaction log */
_transaction_log = 1;
_transaction_xpath = optarg;
break;
}
nacm_mode = clicon_option_str(h, "CLICON_NACM_MODE");
if (nacm_mode==NULL || strcmp(nacm_mode, "disabled") == 0){
clicon_log(LOG_DEBUG, "%s CLICON_NACM_MODE not enabled: example nacm module disabled", __FUNCTION__);
return NULL;
/* Skip nacm module if not enabled _unless_ we use transaction tests */
if (_transaction_log == 0)
return NULL;
}
/* Return plugin API */
return &api;
done:
return NULL;
}

6
lib/clixon/clixon_datastore.h
View file

@ -48,9 +48,9 @@ int xmldb_db2file(clicon_handle h, const char *db, char **filename);
int xmldb_validate_db(const char *db);
int xmldb_connect(clicon_handle h);
int xmldb_disconnect(clicon_handle h);
int xmldb_get(clicon_handle h, const char *db, char *xpath, cxobj **xtop, modstate_diff_t *msd); /* in clixon_datastore_read.[ch] */
int xmldb_get1(clicon_handle h, const char *db, char *xpath, cxobj **xtop, modstate_diff_t *msd); /* in clixon_datastore_read.[ch] */
int xmldb_get1_clear(clicon_handle h, const char *db);
int xmldb_get(clicon_handle h, const char *db, char *xpath, int copy, cxobj **xtop, modstate_diff_t *msd); /* in clixon_datastore_read.[ch] */
int xmldb_get_clear(clicon_handle h, cxobj *x);
int xmldb_get_free(clicon_handle h, cxobj **xp);
int xmldb_put(clicon_handle h, const char *db, enum operation_type op, cxobj *xt, char *username, cbuf *cbret); /* in clixon_datastore_write.[ch] */
int xmldb_copy(clicon_handle h, const char *from, const char *to);
int xmldb_lock(clicon_handle h, const char *db, int pid);

10
lib/clixon/clixon_options.h
View file

@ -73,6 +73,15 @@ enum startup_mode_t{
SM_INIT
};
/*! Datastore cache behaviour, see clixon_datastore.[ch]
* See config option type datastore_cache in clixon-config.yang
*/
enum datastore_cache{
DATASTORE_NOCACHE,
DATASTORE_CACHE,
DATASTORE_CACHE_ZEROCOPY
};
/*
* Prototypes
*/
@ -163,6 +172,7 @@ int clicon_sock_family(clicon_handle h);
int clicon_sock_port(clicon_handle h);
int clicon_autocommit(clicon_handle h);
int clicon_startup_mode(clicon_handle h);
enum datastore_cache clicon_datastore_cache(clicon_handle h);
/*-- Specific option access functions for non-yang options --*/
int clicon_quiet_mode(clicon_handle h);

2
lib/clixon/clixon_plugin.h
View file

@ -177,6 +177,7 @@ struct clixon_plugin_api{
trans_cb_t *cb_trans_validate; /* Transaction validation */
trans_cb_t *cb_trans_complete; /* Transaction validation complete */
trans_cb_t *cb_trans_commit; /* Transaction commit */
trans_cb_t *cb_trans_revert; /* Transaction revert */
trans_cb_t *cb_trans_end; /* Transaction completed */
trans_cb_t *cb_trans_abort; /* Transaction aborted */
@ -195,6 +196,7 @@ struct clixon_plugin_api{
#define ca_trans_validate u.cau_backend.cb_trans_validate
#define ca_trans_complete u.cau_backend.cb_trans_complete
#define ca_trans_commit u.cau_backend.cb_trans_commit
#define ca_trans_revert u.cau_backend.cb_trans_revert
#define ca_trans_end u.cau_backend.cb_trans_end
#define ca_trans_abort u.cau_backend.cb_trans_abort

7
lib/src/clixon_datastore.c
View file

@ -176,7 +176,6 @@ xmldb_disconnect(clicon_handle h)
return retval;
}
/*! Copy database from db1 to db2
* @param[in] h Clicon handle
* @param[in] from Source database
@ -199,7 +198,7 @@ xmldb_copy(clicon_handle h,
cxobj *x2 = NULL; /* to */
/* XXX lock */
if (clicon_option_bool(h, "CLICON_XMLDB_CACHE")){
if (clicon_datastore_cache(h) != DATASTORE_NOCACHE){
/* Copy in-memory cache */
/* 1. "to" xml tree in x1 */
if ((de1 = clicon_db_elmnt_get(h, from)) != NULL)
@ -387,7 +386,7 @@ xmldb_delete(clicon_handle h,
cxobj *xt = NULL;
struct stat sb;
if (clicon_option_bool(h, "CLICON_XMLDB_CACHE")){
if (clicon_datastore_cache(h) != DATASTORE_NOCACHE){
if ((de = clicon_db_elmnt_get(h, db)) != NULL){
if ((xt = de->de_xml) != NULL){
xml_free(xt);
@ -425,7 +424,7 @@ xmldb_create(clicon_handle h,
db_elmnt *de = NULL;
cxobj *xt = NULL;
if (clicon_option_bool(h, "CLICON_XMLDB_CACHE")){ /* XXX This should not really happen? */
if (clicon_datastore_cache(h) != DATASTORE_NOCACHE){
if ((de = clicon_db_elmnt_get(h, db)) != NULL){
if ((xt = de->de_xml) != NULL){
xml_free(xt);

146
lib/src/clixon_datastore_read.c
View file

@ -572,11 +572,11 @@ xmldb_get_cache(clicon_handle h,
* @retval -1 Error
*/
static int
xmldb_get1_cache(clicon_handle h,
const char *db,
char *xpath,
cxobj **xtop,
modstate_diff_t *msd)
xmldb_get_zerocopy(clicon_handle h,
const char *db,
char *xpath,
cxobj **xtop,
modstate_diff_t *msd)
{
int retval = -1;
yang_stmt *yspec;
@ -641,16 +641,29 @@ xmldb_get1_cache(clicon_handle h,
* @param[in] h Clicon handle
* @param[in] db Name of database to search in (filename including dir path
* @param[in] xpath String with XPATH syntax. or NULL for all
* @param[in] copy Force copy. Overrides cache_zerocopy -> cache
* @param[out] xret Single return XML tree. Free with xml_free()
* @param[out] msd If set, return modules-state differences
* @retval 0 OK
* @retval -1 Error
* There are two variants of the call:
* @code
* cxobj *xt;
* if (xmldb_get(xh, "running", "/interfaces/interface[name="eth"]", &xt, NULL) < 0)
* if (xmldb_get(xh, "running", "/interfaces/interface[name="eth"]", 0, &xt, NULL) < 0)
* err;
* # Code accessing and setting XML flags on xt, sorting, populate w yang spec,...
* xmldb_get_clear(h, xt); # Clear tree from default values and flags
* # (only if cache+zerocopy
* xmldb_get_free(h, &xt); # Free tree (only if not zero-copy)
* @endcode
* The second variant only applies to zerocopy cases where you want to force a copy
* since it may be too difficult to handle marked subtrees.
* @code
* if (xmldb_get(xh, "running", "/interfaces/interface[name="eth"]", 1, &xt, NULL) < 0)
* err;
* xml_free(xt);
* @endcode
*
* @note if xvec is given, then purge tree, if not return whole tree.
* @see xpath_vec
*/
@ -658,84 +671,83 @@ int
xmldb_get(clicon_handle h,
const char *db,
char *xpath,
int copy,
cxobj **xret,
modstate_diff_t *msd)
{
int retval = -1;
if (clicon_option_bool(h, "CLICON_XMLDB_CACHE"))
switch (clicon_datastore_cache(h)){
case DATASTORE_NOCACHE:
/* Read from file into created/copy tree, prune non-matching xpath
* Add default values in copy
* Copy deleted by xmldb_free
*/
retval = xmldb_get_nocache(h, db, xpath, xret, msd);
break;
case DATASTORE_CACHE_ZEROCOPY:
/* Get cache (file if empty) mark xpath match in original tree
* add default values in original tree and return that.
* Default values and markings removed in xmldb_clear
*/
if (!copy){
retval = xmldb_get_zerocopy(h, db, xpath, xret, msd);
break;
}
/* fall through */
case DATASTORE_CACHE:
/* Get cache (file if empty) mark xpath match and copy marked into copy
* Add default values in copy, return copy
* Copy deleted by xmldb_free
*/
retval = xmldb_get_cache(h, db, xpath, xret, msd);
else
retval = xmldb_get_nocache(h, db, xpath, xret, msd);
break;
}
return retval;
}
/*! Get content of database using xpath. return a set of matching sub-trees
* The function returns a minimal tree that includes all sub-trees that match
* xpath.
* @param[in] h Clicon handle
* @param[in] db Name of database to search in (filename including dir path
* @param[in] xpath String with XPATH syntax. or NULL for all
* @param[out] xret Single return XML tree. see note
* @param[out] msd If set, return modules-state differences
* @retval 0 OK
* @retval -1 Error
* @code
* cxobj *xt;
* if (xmldb_get(xh, "running", "/interfaces/interface[name="eth"]", &xt, NULL) < 0)
* err;
* xml_free(xt);
* @endcode
* @note if xvec is given, then purge tree, if not return whole tree.
* @see xmldb_get This version uses direct cache access and needs to be
* cleanued up after use
* @see xmldb_get1_clear Must call after use
* @note If !CLICON_XMLDB_CACHE you need to free xret after use
* @note If CLICON_XMLDB_CACHE mark|change flags set, need to clear after call
*/
int
xmldb_get1(clicon_handle h,
const char *db,
char *xpath,
cxobj **xret,
modstate_diff_t *msd)
{
int retval = -1;
if (clicon_option_bool(h, "CLICON_XMLDB_CACHE"))
retval = xmldb_get1_cache(h, db, xpath, xret, msd);
else
retval = xmldb_get_nocache(h, db, xpath, xret, msd);
return retval;
}
/*! Clear cached tree after accessed by xmldb_get1
/*! Clear cached xml tree obtained with xmldb_get, if zerocopy
*
* @param[in] h Clicon handle
* @param[in] dbname Name of database to search in (filename including dir path
* @see xmldb_get1
* @param[in] h Clicon handle
* @param[in] db Name of datastore
* "Clear" an xml tree means removing default values and resetting all flags.
* @see xmldb_get
*/
int
xmldb_get1_clear(clicon_handle h,
const char *db)
xmldb_get_clear(clicon_handle h,
cxobj *x)
{
int retval = -1;
db_elmnt *de = NULL;
if (!clicon_option_bool(h, "CLICON_XMLDB_CACHE"))
goto ok; /* dont bother, tree is a copy */
de = clicon_db_elmnt_get(h, db);
if (de != NULL && de->de_xml != NULL){
/* clear XML tree of defaults */
if (xml_tree_prune_flagged(de->de_xml, XML_FLAG_DEFAULT, 1) < 0)
goto done;
/* clear mark and change */
xml_apply0(de->de_xml, CX_ELMNT, (xml_applyfn_t*)xml_flag_reset,
(void*)(0xff));
}
if (clicon_datastore_cache(h) != DATASTORE_CACHE_ZEROCOPY)
goto ok;
if (x == NULL)
goto ok;
/* clear XML tree of defaults */
if (xml_tree_prune_flagged(x, XML_FLAG_DEFAULT, 1) < 0)
goto done;
/* clear mark and change */
xml_apply0(x, CX_ELMNT, (xml_applyfn_t*)xml_flag_reset,
(void*)(0xff));
ok:
retval = 0;
done:
return retval;
}
/*! Free xml tree obtained with xmldb_get, unless zerocopy
* @param[in] h Clixon handle
* @param[in,out] xp Pointer to XML cache.
* @see xmldb_get
*/
int
xmldb_get_free(clicon_handle h,
cxobj **xp)
{
if (*xp == NULL ||
clicon_datastore_cache(h) == DATASTORE_CACHE_ZEROCOPY)
return 0;
xml_free(*xp);
*xp = NULL;
return 0;
}

7
lib/src/clixon_datastore_tree.c
View file

@ -206,6 +206,7 @@ buf2xml(FILE *f,
int i;
uint32_t ind;
cxobj *xc;
size_t ret;
/* Read hdr
* +-----+-----+-----+-----+-----+-----+-----+-----+
@ -216,7 +217,7 @@ buf2xml(FILE *f,
clicon_err(OE_UNIX, errno, "fseek");
goto done;
}
if (fread(hdr, sizeof(char), sizeof(hdr), f) < 0){
if ((ret = fread(hdr, sizeof(char), sizeof(hdr), f)) != sizeof(hdr)){
clicon_err(OE_XML, errno, "fread");
goto done;
}
@ -250,7 +251,7 @@ buf2xml(FILE *f,
clicon_err(OE_UNIX, errno, "malloc");
goto done;
}
if (fread(buf, sizeof(char), len-sizeof(hdr), f) < 0){
if ((ret = fread(buf, sizeof(char), len-sizeof(hdr), f)) != len-sizeof(hdr)){
clicon_err(OE_XML, errno, "fread");
goto done;
}
@ -318,7 +319,7 @@ xml2buf(FILE *f,
int len1;
int ptr;
int i;
char *buf0;
char *buf0 = NULL;
char *buf;
uint32_t myindex;

10
lib/src/clixon_datastore_write.c
View file

@ -652,8 +652,9 @@ xmldb_put(clicon_handle h,
xml_name(x1));
goto done;
}
if (clicon_option_bool(h, "CLICON_XMLDB_CACHE")){
if ((de = clicon_db_elmnt_get(h, db)) != NULL)
if ((de = clicon_db_elmnt_get(h, db)) != NULL){
if (clicon_datastore_cache(h) != DATASTORE_NOCACHE)
x0 = de->de_xml;
}
/* If there is no xml x0 tree (in cache), then read it from file */
@ -713,8 +714,9 @@ xmldb_put(clicon_handle h,
if (xml_apply0(x0, -1, xml_sort_verify, NULL) < 0)
clicon_log(LOG_NOTICE, "%s: verify failed #3", __FUNCTION__);
#endif
/* Write back to datastore cache if first time */
if (clicon_option_bool(h, "CLICON_XMLDB_CACHE")){
if (clicon_datastore_cache(h) != DATASTORE_NOCACHE){
db_elmnt de0 = {0,};
if (de != NULL)
de0 = *de;
@ -770,7 +772,7 @@ xmldb_put(clicon_handle h,
free(dbfile);
if (cb)
cbuf_free(cb);
if (!clicon_option_bool(h, "CLICON_XMLDB_CACHE") && x0)
if (x0 && clicon_datastore_cache(h) == DATASTORE_NOCACHE)
xml_free(x0);
return retval;
fail:

2
lib/src/clixon_nacm.c
View file

@ -890,7 +890,7 @@ nacm_access_pre(clicon_handle h,
goto done;
}
else if (strcmp(mode, "internal")==0){
if (xmldb_get(h, "running", "nacm", &xnacm0, NULL) < 0)
if (xmldb_get(h, "running", "nacm", 1, &xnacm0, NULL) < 0)
goto done;
}
}

49
lib/src/clixon_options.c
View file

@ -543,30 +543,25 @@ clicon_cli_genmodel_completion(clicon_handle h)
return 0;
}
static const map_str2int cli_genmodel_map[] = {
{"NONE", GT_NONE},
{"VARS", GT_VARS},
{"ALL", GT_ALL},
{NULL, -1}
};
/*! How to generate and show CLI syntax: VARS|ALL
* @see clixon-config@<date>.yang CLICON_CLI_GENMODEL_TYPE
*/
enum genmodel_type
clicon_cli_genmodel_type(clicon_handle h)
{
char *s;
enum genmodel_type gt = GT_ERR;
char *str;
if (!clicon_option_exists(h, "CLICON_CLI_GENMODEL_TYPE")){
gt = GT_VARS;
goto done;
}
s = clicon_option_str(h, "CLICON_CLI_GENMODEL_TYPE");
if (strcmp(s, "NONE")==0)
gt = GT_NONE;
if ((str = clicon_option_str(h, "CLICON_CLI_GENMODEL_TYPE")) == NULL)
return GT_VARS;
else
if (strcmp(s, "VARS")==0)
gt = GT_VARS;
else
if (strcmp(s, "ALL")==0)
gt = GT_ALL;
done:
return gt;
return clicon_str2int(cli_genmodel_map, str);
}
/*! Get Dont include keys in cvec in cli vars callbacks
@ -638,6 +633,28 @@ clicon_startup_mode(clicon_handle h)
return clicon_str2int(startup_mode_map, mode);
}
static const map_str2int datastore_cache_map[] = {
{"nocache", DATASTORE_NOCACHE},
{"cache", DATASTORE_CACHE},
{"cache-zerocopy", DATASTORE_CACHE_ZEROCOPY},
{NULL, -1}
};
/*! How to generate and show CLI syntax: VARS|ALL
* @see clixon-config@<date>.yang CLICON_CLI_GENMODEL_TYPE
*/
enum datastore_cache
clicon_datastore_cache(clicon_handle h)
{
char *str;
if ((str = clicon_option_str(h, "CLICON_DATASTORE_CACHE")) == NULL)
return DATASTORE_CACHE;
else
return clicon_str2int(datastore_cache_map, str);
}
/*---------------------------------------------------------------------
* Specific option access functions for non-yang options
* Typically dynamic values and more complex datatypes,

41
test/test_cli_history.sh
View file

@ -36,7 +36,7 @@ cat <<EOF > $histfile
first line
EOF
# NOTE Backend is not really use here
# NOTE Backend is not really used here
new "test params: -f $cfg"
if [ $BE -ne 0 ]; then
new "kill old backend"
@ -59,22 +59,22 @@ if [ ! -f $histfile ]; then
err "$histfile" "not found"
fi
new "Check it has two entries"
lines=$(cat $histfile | wc -l)
if [ $lines -ne 2 ]; then
err "Line:$lines" "2"
new "Check histfile has two entries"
nr=$(cat $histfile | wc -l)
if [ $nr -ne 2 ]; then
err "2" "$nr"
fi
new "check it contains first line"
new "Check histfile contains first line"
nr=$(grep -c "example 42" $histfile)
if [ $nr -ne 1 ]; then
err "Contains: example 42" "1"
err "Contains: example 42" "$nr"
fi
new "Check it contains example 42"
new "Check histfile contains example 42"
nr=$(grep -c "example 42" $histfile)
if [ $nr -ne 1 ]; then
err "Contains: example 42" "1"
err "1" "$nr"
fi
new "cli add entry and create newhist file"
@ -88,7 +88,28 @@ fi
new "check it contains example 43"
nr=$(grep -c "example 43" $dir/newhist)
if [ $nr -ne 1 ]; then
err "Contains: example 43" "1"
err "1" "$nr"
fi
# Add a long (128 chars) string and see it survives
str128="1234567890123456789012345678901234567890123456789012345678901234567890123456789012345678901234567890123456789012345678901234567"
new "cli add long line"
expecteof "$clixon_cli -f $cfg" 0 "$str128" "" 2> /dev/null # ignore error output
new "Check histfile contains long string"
nr=$(grep -c "$str128" $histfile)
if [ $nr -ne 1 ]; then
err "1" "$nr"
fi
new "cli load arrow-up save -> create two copies of long string"
expecteof "$clixon_cli -f $cfg" 0 "q" ""
expecteof "$clixon_cli -f $cfg" 0 "" "" 2> /dev/null
new "Check histfile contains two copies of long string"
nr=$(grep -c "$str128" $histfile)
if [ $nr -ne 2 ]; then
err "2" "$nr"
fi
if [ $BE -eq 0 ]; then

231
test/test_transaction.sh
View file

@ -1,10 +1,20 @@
#!/bin/bash
# Transaction functionality
# The test uses a backend that logs to a file and a netconf client to push
# changes. The main example backend plugin logs to the file, and the test
# verifies the logs.
# The yang is a list with three members, so that you can do add/delete/change
# in a single go.
# The test uses two backend plugins (main and nacm) that logs to a file and a
# netconf client to push operation. The tests then look at the log.
# The tests are as follows (first five only callbacks per se; then data vector tests)
# 1. Validate-only transaction
# 2. Commit transaction
# 3. Validate system-error (invalid type detected by system)
# 4. Validate user-error (invalidation by user callback)
# 5. Commit user-error (invalidation by user callback)
# -- to here only basic callback tests (that they occur). Below transaction data
# 6. Detailed transaction vector add/del/change tests
# For the last test, the yang is a list with three members, so that you can do
# add/delete/change in a single go.
# The user-error uses a trick feature in the example nacm plugin which is started
# with an "error-trigger" xpath which triggers an error. This also toggles between
# validation and commit errors
# Magic line must be first in script (see README.md)
s="$_" ; . ./lib.sh || if [ "$s" = $0 ]; then exit 0; else return 0; fi
@ -19,6 +29,9 @@ fyang=$dir/trans.yang
flog=$dir/backend.log
touch $flog
# Used as a trigger for user-validittion errors, eg <a>$errnr</a> is invalid
errnr=42
cat <<EOF > $fyang
module trans{
yang-version 1.1;
@ -31,8 +44,10 @@ module trans{
type int32;
}
leaf b {
description "change this";
type int32;
description "change this (also use to check invalid)";
type int32{
range "0..100";
}
}
leaf c {
description "del this";
@ -54,7 +69,7 @@ cat <<EOF > $cfg
<CLICON_YANG_MAIN_FILE>$fyang</CLICON_YANG_MAIN_FILE>
<CLICON_CLISPEC_DIR>/usr/local/lib/$APPNAME/clispec</CLICON_CLISPEC_DIR>
<CLICON_BACKEND_DIR>/usr/local/lib/$APPNAME/backend</CLICON_BACKEND_DIR>
<CLICON_BACKEND_REGEXP>example_backend.so$</CLICON_BACKEND_REGEXP>
<!--CLICON_BACKEND_REGEXP>example_backend.so$</CLICON_BACKEND_REGEXP-->
<CLICON_NETCONF_DIR>/usr/local/lib/$APPNAME/netconf</CLICON_NETCONF_DIR>
<CLICON_RESTCONF_DIR>/usr/local/lib/$APPNAME/restconf</CLICON_RESTCONF_DIR>
<CLICON_CLI_DIR>/usr/local/lib/$APPNAME/cli</CLICON_CLI_DIR>
@ -70,8 +85,9 @@ EOF
# Check statements in log
checklog(){
s=$1 # statement
l0=$2 # linenr
new "Check $s in log"
t=$(grep "$s" $flog)
t=$(grep -n "transaction_log $s" $flog)
if [ -z "$t" ]; then
echo -e "\e[31m\nError in Test$testnr [$testname]:"
if [ $# -gt 0 ]; then
@ -81,9 +97,19 @@ checklog(){
echo -e "\e[0m"
exit -1
fi
l1=$(echo "$t" | awk -F ":" '{print $1}')
if [ $l1 -ne $l0 ]; then
echo -e "\e[31m\nError in Test$testnr [$testname]:"
if [ $# -gt 0 ]; then
echo "Expected match on line $l0, found on $l1"
echo
fi
echo -e "\e[0m"
exit -1
fi
}
new "test params: -f $cfg -l f$flog -- -t"
new "test params: -f $cfg -l f$flog -- -t /x/y[a=$errnr]" # Fail on this
# Bring your own backend
if [ $BE -ne 0 ]; then
# kill old backend (if any)
@ -92,47 +118,190 @@ if [ $BE -ne 0 ]; then
if [ $? -ne 0 ]; then
err
fi
new "start backend -s init -f $cfg -l f$flog -- -t"
start_backend -s init -f $cfg -l f$flog -- -t # -t means transaction logging
new "start backend -s init -f $cfg -l f$flog -- -t /x/y[a=$errnr]"
start_backend -s init -f $cfg -l f$flog -- -t /x/y[a=$errnr] # -t means transaction logging
new "waiting"
sleep $RCWAIT
fi
new "netconf base config (0) a,b,c"
expecteof "$clixon_netconf -qf $cfg" 0 '<rpc><edit-config><target><candidate/></target><config><x xmlns="urn:example:clixon"><y><a>0</a><b>0</b><c>0</c></y></x></config></edit-config></rpc>]]>]]>' '^<rpc-reply><ok/></rpc-reply>]]>]]>$'
let nr=1
new "Basic transaction to add top-level x"
expecteof "$clixon_netconf -qf $cfg" 0 "<rpc><edit-config><target><candidate/></target><config><x xmlns='urn:example:clixon'><y><a>$nr</a></y></x></config></edit-config></rpc>]]>]]>" '^<rpc-reply><ok/></rpc-reply>]]>]]>$'
new "Commit base"
expecteof "$clixon_netconf -qf $cfg" 0 '<rpc><commit/></rpc>]]>]]>' '^<rpc-reply><ok/></rpc-reply>]]>]]>$'
let line=12 # Skipping basic transaction
# 1. validate(-only) transaction
let nr++
let line
new "1. Validate-only transaction"
expecteof "$clixon_netconf -qf $cfg" 0 "<rpc><edit-config><target><candidate/></target><config><x xmlns='urn:example:clixon'><y><a>$nr</a></y></x></config></edit-config></rpc>]]>]]>" '^<rpc-reply><ok/></rpc-reply>]]>]]>$'
new "Validate-only validate"
expecteof "$clixon_netconf -qf $cfg" 0 '<rpc><validate><source><candidate/></source></validate></rpc>]]>]]>' '^<rpc-reply><ok/></rpc-reply>]]>]]>$'
xml="<y><a>$nr</a></y>"
for op in begin validate complete end; do
checklog "$nr main_$op add: $xml" $line
let line++
checklog "$nr nacm_$op add: $xml" $line
let line++
done
new "Validate-only discard-changes"
expecteof "$clixon_netconf -qf $cfg" 0 "<rpc><discard-changes/></rpc>]]>]]>" "^<rpc-reply><ok/></rpc-reply>]]>]]>$"
# 2. Commit transaction
let nr++
new "2. Commit transaction config"
expecteof "$clixon_netconf -qf $cfg" 0 "<rpc><edit-config><target><candidate/></target><config><x xmlns='urn:example:clixon'><y><a>$nr</a></y></x></config></edit-config></rpc>]]>]]>" '^<rpc-reply><ok/></rpc-reply>]]>]]>$'
new "Commit transaction: commit"
expecteof "$clixon_netconf -qf $cfg" 0 '<rpc><commit/></rpc>]]>]]>' '^<rpc-reply><ok/></rpc-reply>]]>]]>$'
xml="<y><a>$nr</a></y>"
for op in begin validate complete commit end; do
checklog "$nr main_$op add: $xml" $line
let line++
checklog "$nr nacm_$op add: $xml" $line
let line++
done
# 3. Validate only system-error (invalid type detected by system)
let nr++
new "3. Validate system-error config (9999 not in range)"
expecteof "$clixon_netconf -qf $cfg" 0 "<rpc><edit-config><target><candidate/></target><config><x xmlns='urn:example:clixon'><y><a>$nr</a><b>9999</b></y></x></config></edit-config></rpc>]]>]]>" '^<rpc-reply><ok/></rpc-reply>]]>]]>$'
new "Validate system-error validate (should fail)"
expecteof "$clixon_netconf -qf $cfg" 0 '<rpc><validate><source><candidate/></source></validate></rpc>]]>]]>' '^<rpc-reply><rpc-error><error-type>application</error-type><error-tag>bad-element</error-tag><error-info><bad-element>b</bad-element></error-info><error-severity>error</error-severity><error-message>Number out of range: 9999</error-message></rpc-error></rpc-reply>]]>]]>$'
new "Validate system-error discard-changes"
expecteof "$clixon_netconf -qf $cfg" 0 "<rpc><discard-changes/></rpc>]]>]]>" "^<rpc-reply><ok/></rpc-reply>]]>]]>$"
for op in begin abort; do
checklog "$nr main_$op add: <y><a>$nr</a><b>9999</b></y>" $line
let line++
checklog "$nr nacm_$op add: <y><a>$nr</a><b>9999</b></y>" $line
let line++
done
# 4. Validate only user-error (invalidation by user callback)
let nr++
new "4. Validate user-error config ($errnr is invalid)"
expecteof "$clixon_netconf -qf $cfg" 0 "<rpc><edit-config><target><candidate/></target><config><x xmlns='urn:example:clixon'><y><a>$errnr</a></y></x></config></edit-config></rpc>]]>]]>" '^<rpc-reply><ok/></rpc-reply>]]>]]>$'
new "Validate user-error validate (should fail)"
expecteof "$clixon_netconf -qf $cfg" 0 '<rpc><validate><source><candidate/></source></validate></rpc>]]>]]>' '^<rpc-reply><rpc-error><error-type>application</error-type><error-tag>operation-failed</error-tag><error-severity>error</error-severity><error-message>User error</error-message></rpc-error></rpc-reply>]]>]]>$'
new "Validate user-error discard-changes"
expecteof "$clixon_netconf -qf $cfg" 0 "<rpc><discard-changes/></rpc>]]>]]>" "^<rpc-reply><ok/></rpc-reply>]]>]]>$"
for op in begin validate; do
checklog "$nr main_$op add: <y><a>$errnr</a></y>" $line
let line++
checklog "$nr nacm_$op add: <y><a>$errnr</a></y>" $line
let line++
done
let line++ # error message
for op in abort; do
checklog "$nr main_$op add: <y><a>$errnr</a></y>" $line
let line++
checklog "$nr nacm_$op add: <y><a>$errnr</a></y>" $line
let line++
done
# 5. Commit user-error (invalidation by user callback)
# XXX Note Validate-only user-error must immediately preceede this due to toggling
# in nacm/transaction example test module
let nr++
new "5. Commit user-error ($errnr is invalid)"
expecteof "$clixon_netconf -qf $cfg" 0 "<rpc><edit-config><target><candidate/></target><config><x xmlns='urn:example:clixon'><y><a>$errnr</a></y></x></config></edit-config></rpc>]]>]]>" '^<rpc-reply><ok/></rpc-reply>]]>]]>$'
new "Commit user-error commit"
expecteof "$clixon_netconf -qf $cfg" 0 '<rpc><commit/></rpc>]]>]]>' '^<rpc-reply><rpc-error><error-type>application</error-type><error-tag>operation-failed</error-tag><error-severity>error</error-severity><error-message>User error</error-message></rpc-error></rpc-reply>]]>]]>$'
new "Commit user-error discard-changes"
expecteof "$clixon_netconf -qf $cfg" 0 "<rpc><discard-changes/></rpc>]]>]]>" "^<rpc-reply><ok/></rpc-reply>]]>]]>$"
for op in begin validate complete commit; do
checklog "$nr main_$op add: <y><a>$errnr</a></y>" $line
let line++
checklog "$nr nacm_$op add: <y><a>$errnr</a></y>" $line
let line++
done
let line++ # error message
checklog "$nr main_revert add: <y><a>$errnr</a></y>" $line
let line++
for op in abort; do
checklog "$nr main_$op add: <y><a>$errnr</a></y>" $line
let line++
checklog "$nr nacm_$op add: <y><a>$errnr</a></y>" $line
let line++
done
# 6. Detailed transaction vector add/del/change tests
let nr++
let base=nr
new "Add base <a>$base entry"
expecteof "$clixon_netconf -qf $cfg" 0 "<rpc><edit-config><target><candidate/></target><config><x xmlns='urn:example:clixon'><y><a>$base</a><b>0</b><c>0</c></y></x></config></edit-config></rpc>]]>]]>" '^<rpc-reply><ok/></rpc-reply>]]>]]>$'
new "netconf commit base"
expecteof "$clixon_netconf -qf $cfg" 0 '<rpc><commit/></rpc>]]>]]>' '^<rpc-reply><ok/></rpc-reply>]]>]]>$'
#Ignore
let line+=10
new "netconf mixed change: change b, del c, add d"
expecteof "$clixon_netconf -qf $cfg" 0 '<rpc><edit-config><target><candidate/></target><config><x xmlns="urn:example:clixon"><y><a>0</a><b>42</b><d>0</d></y></x></config></edit-config></rpc>]]>]]>' '^<rpc-reply><ok/></rpc-reply>]]>]]>$'
let nr++
new "6. netconf mixed change: change b, del c, add d"
expecteof "$clixon_netconf -qf $cfg" 0 "<rpc><edit-config><target><candidate/></target><config><x xmlns='urn:example:clixon'><y><a>$base</a><b>42</b><d>0</d></y></x></config></edit-config></rpc>]]>]]>" '^<rpc-reply><ok/></rpc-reply>]]>]]>$'
new "netconf commit change"
expecteof "$clixon_netconf -qf $cfg" 0 '<rpc><commit/></rpc>]]>]]>' '^<rpc-reply><ok/></rpc-reply>]]>]]>$'
# Check complete transaction 2:
# Check complete transaction $nr:
for op in begin validate complete commit; do
checklog "transaction_log 2 $op add: <d>0</d>"
checklog "transaction_log 2 $op change: <b>0</b><b>42</b>"
checklog "$nr main_$op add: <d>0</d>" $line
let line++
checklog "$nr main_$op change: <b>0</b><b>42</b>" $line
let line++
checklog "$nr nacm_$op add: <d>0</d>" $line
let line++
checklog "$nr nacm_$op change: <b>0</b><b>42</b>" $line
let line++
done
# End is special
checklog "transaction_log 2 end add: <d>0</d>"
checklog "transaction_log 2 end change: <b>42</b>"
new "netconf config (1) end-points a,d "
expecteof "$clixon_netconf -qf $cfg" 0 '<rpc><edit-config><target><candidate/></target><config><x xmlns="urn:example:clixon"><y><a>1</a><d>1</d></y></x></config></edit-config></rpc>]]>]]>' '^<rpc-reply><ok/></rpc-reply>]]>]]>$'
# End is special because change does not haveold element
checklog "$nr main_end add: <d>0</d>" $line
let line++
checklog "$nr main_end change: <b>42</b>" $line
let line+=3 # skip nacm
let nr++
let base=nr
new "Add base <a>$base entry"
expecteof "$clixon_netconf -qf $cfg" 0 "<rpc><edit-config><target><candidate/></target><config><x xmlns='urn:example:clixon'><y><a>$base</a><d>1</d></y></x></config></edit-config></rpc>]]>]]>" '^<rpc-reply><ok/></rpc-reply>]]>]]>$'
new "netconf commit base"
expecteof "$clixon_netconf -qf $cfg" 0 '<rpc><commit/></rpc>]]>]]>' '^<rpc-reply><ok/></rpc-reply>]]>]]>$'
let line+=10
# Variant check that only b,c
let nr++
new "7. netconf insert b,c between end-points"
expecteof "$clixon_netconf -qf $cfg" 0 "<rpc><edit-config><target><candidate/></target><config><x xmlns='urn:example:clixon'><y><a>$base</a><b>1</b><c>1</c></y></x></config></edit-config></rpc>]]>]]>" '^<rpc-reply><ok/></rpc-reply>]]>]]>$'
new "netconf commit base"
expecteof "$clixon_netconf -qf $cfg" 0 '<rpc><commit/></rpc>]]>]]>' '^<rpc-reply><ok/></rpc-reply>]]>]]>$'
new "netconf insert b,c between end-points"
expecteof "$clixon_netconf -qf $cfg" 0 '<rpc><edit-config><target><candidate/></target><config><x xmlns="urn:example:clixon"><y><a>1</a><b>1</b><c>1</c></y></x></config></edit-config></rpc>]]>]]>' '^<rpc-reply><ok/></rpc-reply>]]>]]>$'
new "netconf commit base"
expecteof "$clixon_netconf -qf $cfg" 0 '<rpc><commit/></rpc>]]>]]>' '^<rpc-reply><ok/></rpc-reply>]]>]]>$'
checklog "transaction_log 4 validate add: <b>1</b><c>1</c>"
# check complete
for op in begin validate complete commit end; do
checklog "$nr main_$op add: <b>1</b><c>1</c>" $line
let line++
checklog "$nr nacm_$op add: <b>1</b><c>1</c>" $line
let line++
done
if [ $BE -eq 0 ]; then
exit # BE

15
util/clixon_util_datastore.c
View file

@ -198,11 +198,14 @@ main(int argc, char **argv)
xpath = argv[1];
else
xpath = "/";
if (xmldb_get(h, db, xpath, &xt, NULL) < 0)
if (xmldb_get(h, db, xpath, 1, &xt, NULL) < 0)
goto done;
clicon_xml2file(stdout, xt, 0, 0);
fprintf(stdout, "\n");
if (xt){
xml_free(xt);
xt = NULL;
}
}
else if (strcmp(cmd, "mget")==0){
int nr;
@ -214,15 +217,17 @@ main(int argc, char **argv)
else
xpath = "/";
for (i=0;i<nr;i++){
if (xmldb_get(h, db, xpath, &xt, NULL) < 0)
if (xmldb_get(h, db, xpath, 1, &xt, NULL) < 0)
goto done;
if (xt == NULL){
clicon_err(OE_DB, 0, "xt is NULL");
goto done;
}
clicon_xml2file(stdout, xt, 0, 0);
xml_free(xt);
xt = NULL;
if (xt){
xml_free(xt);
xt = NULL;
}
}
fprintf(stdout, "\n");
}

41
yang/clixon/clixon-config@2019-03-05.yang
View file

@ -80,9 +80,9 @@ module clixon-config {
}
}
}
typedef xmldb_format{
typedef datastore_format{
description
"Format of TEXT xml database format.";
"Datastore format.";
type enumeration{
enum xml{
description "Save and load xmldb as XML";
@ -96,6 +96,24 @@ module clixon-config {
}
}
}
typedef datastore_cache{
description
"XML configuration, ie running/candididate/ datastore cache behaviour.";
type enumeration{
enum nocache{
description "No cache always work directly with file";
}
enum cache{
description "Use in-memory cache.
Make copies when accessing internally.";
}
enum cache-zerocopy{
description "Use in-memory cache and dont copy.
Fastest but opens up for callbacks changing cache.";
}
}
}
typedef cli_genmodel_type{
description
"How to generate CLI from YANG model,
@ -259,7 +277,8 @@ module clixon-config {
"If set, generate CLI specification for CLI completion of
loaded Yang modules. This CLI tree can be accessed in CLI
spec files using the tree reference syntax (eg @datamodel).
See also CLICON_CLI_MODEL_TREENAME.";
See also CLICON_CLI_MODEL_TREENAME.
(Consider boolean)";
}
leaf CLICON_CLI_MODEL_TREENAME {
type string;
@ -272,7 +291,8 @@ module clixon-config {
leaf CLICON_CLI_GENMODEL_COMPLETION {
type int32;
default 1;
description "Generate code for CLI completion of existing db symbols";
description "Generate code for CLI completion of existing db symbols.
Consider boolean type";
}
leaf CLICON_CLI_GENMODEL_TYPE {
type cli_genmodel_type;
@ -369,16 +389,15 @@ module clixon-config {
(see datastore/ and clixon_xml_db.[ch])
Obsolete: Merged with libclixon in 3.10";
}
leaf CLICON_XMLDB_CACHE {
type boolean;
default true;
leaf CLICON_DATASTORE_CACHE {
type datastore_cache;
default cache;
description
"XMLDB datatsore cache.
If set, XML candidate/running parsed tree is stored in memory
If not set, candidate/running is always accessed via disk.";
"Clixon datastore cache behaviour. There are three values: no cache,
cache with copy, or cache without copy.";
}
leaf CLICON_XMLDB_FORMAT {
type xmldb_format;
type datastore_format;
default xml;
description "XMLDB datastore format.";
}