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authorRenato Westphal <renato@opensourcerouting.org>2020-05-14 12:30:34 -0300
committerRenato Westphal <renato@opensourcerouting.org>2020-05-28 19:22:54 -0300
commitdf5eda3d8783a3436f43821a2840911d610fd89d (patch)
tree49cef5931b240472e6ac5b1c78da9fad2ccee0cf /lib/northbound_sysrepo.c
parent13d6b9c1343a1f925e3ffd7be0938bf1f395b461 (diff)
lib: return human-readable error messages to the northbound clients
Instead of returning only error codes (e.g. NB_ERR_VALIDATION) to the northbound clients, do better than that and also return a human-readable error message. This should make FRR more automation-friendly since operators won't need to dig into system logs to find out what went wrong in the case of an error. Signed-off-by: Renato Westphal <renato@opensourcerouting.org>
Diffstat (limited to 'lib/northbound_sysrepo.c')
-rw-r--r--lib/northbound_sysrepo.c18
1 files changed, 15 insertions, 3 deletions
diff --git a/lib/northbound_sysrepo.c b/lib/northbound_sysrepo.c
index 4d15c80a2b..500203173c 100644
--- a/lib/northbound_sysrepo.c
+++ b/lib/northbound_sysrepo.c
@@ -247,6 +247,7 @@ static int frr_sr_config_change_cb_verify(sr_session_ctx_t *session,
char xpath[XPATH_MAXLEN];
struct nb_context context = {};
struct nb_config *candidate;
+ char errmsg[BUFSIZ] = {0};
snprintf(xpath, sizeof(xpath), "/%s:*", module_name);
ret = sr_get_changes_iter(session, xpath, &it);
@@ -284,15 +285,26 @@ static int frr_sr_config_change_cb_verify(sr_session_ctx_t *session,
* single event (SR_EV_ENABLED). This means we need to perform
* the full two-phase commit protocol in one go here.
*/
- ret = nb_candidate_commit(&context, candidate, true, NULL,
- NULL);
+ ret = nb_candidate_commit(&context, candidate, true, NULL, NULL,
+ errmsg, sizeof(errmsg));
+ if (ret != NB_OK && ret != NB_ERR_NO_CHANGES)
+ flog_warn(
+ EC_LIB_LIBSYSREPO,
+ "%s: failed to apply startup configuration: %s (%s)",
+ __func__, nb_err_name(ret), errmsg);
} else {
/*
* Validate the configuration changes and allocate all resources
* required to apply them.
*/
ret = nb_candidate_commit_prepare(&context, candidate, NULL,
- &transaction);
+ &transaction, errmsg,
+ sizeof(errmsg));
+ if (ret != NB_OK && ret != NB_ERR_NO_CHANGES)
+ flog_warn(
+ EC_LIB_LIBSYSREPO,
+ "%s: failed to prepare configuration transaction: %s (%s)",
+ __func__, nb_err_name(ret), errmsg);
}
/* Map northbound return code to sysrepo return code. */