res_pjsip: Add "like" processing to pjsip list and show commands

Add the ability to filter output from pjsip list and show commands
using the "like" predicate like chan_sip.

For endpoints, aors, auths, registrations, identifyies and transports,
the modification was a simple change of an ast_sorcery_retrieve_by_fields
call to ast_sorcery_retrieve_by_regex.  For channels and contacts a
little more work had to be done because neither of those objects are
true sorcery objects.  That was just removing the non-matching object
from the final container.  Of course, a little extra plumbing in the
common pjsip_cli code was needed to parse the "like" and pass the regex
to the get_container callbacks.

Some of the get_container code in res_pjsip_endpoint_identifier was also
refactored for simplicity.

ASTERISK-25477 #close
Reported by: Bryant Zimmerman
Tested by: George Joseph

Change-Id: I646d9326b778aac26bb3e2bcd7fa1346d24434f1

1 files changed, 9 insertions, 6 deletions

diff --git a/res/res_pjsip_outbound_registration.c b/res/res_pjsip_outbound_registration.c
index 038cc0b20..7ff5f1619 100644
--- a/res/res_pjsip_outbound_registration.c
+++ b/res/res_pjsip_outbound_registration.c
@@ -1639,11 +1639,12 @@ static int ami_show_outbound_registrations(struct mansession *s,
 	return 0;
 }
 
-static struct ao2_container *cli_get_container(void)
+static struct ao2_container *cli_get_container(const char *regex)
 {
-	RAII_VAR(struct ao2_container *, container, get_registrations(), ao2_cleanup);
+	RAII_VAR(struct ao2_container *, container, NULL, ao2_cleanup);
 	struct ao2_container *s_container;
 
+	container = ast_sorcery_retrieve_by_regex(ast_sip_get_sorcery(), "registration", regex);
 	if (!container) {
 		return NULL;
 	}
@@ -1747,12 +1748,14 @@ static struct ast_cli_entry cli_outbound_registration[] = {
 	AST_CLI_DEFINE(cli_register, "Registers an outbound registration target"),
 	AST_CLI_DEFINE(my_cli_traverse_objects, "List PJSIP Registrations",
 		.command = "pjsip list registrations",
-		.usage = "Usage: pjsip list registrations\n"
-				 "       List the configured PJSIP Registrations\n"),
+		.usage = "Usage: pjsip list registrations [ like <pattern> ]\n"
+				"       List the configured PJSIP Registrations\n"
+				"       Optional regular expression pattern is used to filter the list.\n"),
 	AST_CLI_DEFINE(my_cli_traverse_objects, "Show PJSIP Registrations",
 		.command = "pjsip show registrations",
-		.usage = "Usage: pjsip show registrations\n"
-				 "       Show the configured PJSIP Registrations\n"),
+		.usage = "Usage: pjsip show registrations [ like <pattern> ]\n"
+				"       Show the configured PJSIP Registrations\n"
+				"       Optional regular expression pattern is used to filter the list.\n"),
 	AST_CLI_DEFINE(my_cli_traverse_objects, "Show PJSIP Registration",
 		.command = "pjsip show registration",
 		.usage = "Usage: pjsip show registration <id>\n"