ipsec: infra for selecting backends
Change-Id: Ifa6d8391b1b2413a88b7720fc434e0bc849a149a
Signed-off-by: Klement Sekera <ksekera@cisco.com>
Signed-off-by: Andrew Yourtchenko <ayourtch@gmail.com>
diff --git a/src/vnet/ipsec/ipsec_cli.c b/src/vnet/ipsec/ipsec_cli.c
index 4e382bd..ee7dd40 100644
--- a/src/vnet/ipsec/ipsec_cli.c
+++ b/src/vnet/ipsec/ipsec_cli.c
@@ -174,8 +174,7 @@
if (is_add)
{
- ASSERT (im->cb.check_support_cb);
- error = im->cb.check_support_cb (&sa);
+ error = ipsec_check_support_cb (im, &sa);
if (error)
goto done;
}
@@ -702,12 +701,149 @@
/* *INDENT-OFF* */
VLIB_CLI_COMMAND (show_ipsec_command, static) = {
.path = "show ipsec",
- .short_help = "show ipsec",
+ .short_help = "show ipsec [backends]",
.function = show_ipsec_command_fn,
};
/* *INDENT-ON* */
static clib_error_t *
+ipsec_show_backends_command_fn (vlib_main_t * vm,
+ unformat_input_t * input,
+ vlib_cli_command_t * cmd)
+{
+ ipsec_main_t *im = &ipsec_main;
+ u32 verbose = 0;
+
+ (void) unformat (input, "verbose %u", &verbose);
+
+ vlib_cli_output (vm, "IPsec AH backends available:");
+ u8 *s = format (NULL, "%=25s %=25s %=10s\n", "Name", "Index", "Active");
+ ipsec_ah_backend_t *ab;
+ /* *INDENT-OFF* */
+ pool_foreach (ab, im->ah_backends, {
+ s = format (s, "%=25s %=25u %=10s\n", ab->name, ab - im->ah_backends,
+ ab - im->ah_backends == im->ah_current_backend ? "yes" : "no");
+ if (verbose) {
+ vlib_node_t *n;
+ n = vlib_get_node (vm, ab->ah4_encrypt_node_index);
+ s = format (s, " enc4 %s (next %d)\n", n->name, ab->ah4_encrypt_next_index);
+ n = vlib_get_node (vm, ab->ah4_decrypt_node_index);
+ s = format (s, " dec4 %s (next %d)\n", n->name, ab->ah4_decrypt_next_index);
+ n = vlib_get_node (vm, ab->ah6_encrypt_node_index);
+ s = format (s, " enc6 %s (next %d)\n", n->name, ab->ah6_encrypt_next_index);
+ n = vlib_get_node (vm, ab->ah6_decrypt_node_index);
+ s = format (s, " dec6 %s (next %d)\n", n->name, ab->ah6_decrypt_next_index);
+ }
+ });
+ /* *INDENT-ON* */
+ vlib_cli_output (vm, "%v", s);
+ _vec_len (s) = 0;
+ vlib_cli_output (vm, "IPsec ESP backends available:");
+ s = format (s, "%=25s %=25s %=10s\n", "Name", "Index", "Active");
+ ipsec_esp_backend_t *eb;
+ /* *INDENT-OFF* */
+ pool_foreach (eb, im->esp_backends, {
+ s = format (s, "%=25s %=25u %=10s\n", eb->name, eb - im->esp_backends,
+ eb - im->esp_backends == im->esp_current_backend ? "yes"
+ : "no");
+ if (verbose) {
+ vlib_node_t *n;
+ n = vlib_get_node (vm, eb->esp4_encrypt_node_index);
+ s = format (s, " enc4 %s (next %d)\n", n->name, eb->esp4_encrypt_next_index);
+ n = vlib_get_node (vm, eb->esp4_decrypt_node_index);
+ s = format (s, " dec4 %s (next %d)\n", n->name, eb->esp4_decrypt_next_index);
+ n = vlib_get_node (vm, eb->esp6_encrypt_node_index);
+ s = format (s, " enc6 %s (next %d)\n", n->name, eb->esp6_encrypt_next_index);
+ n = vlib_get_node (vm, eb->esp6_decrypt_node_index);
+ s = format (s, " dec6 %s (next %d)\n", n->name, eb->esp6_decrypt_next_index);
+ }
+ });
+ /* *INDENT-ON* */
+ vlib_cli_output (vm, "%v", s);
+
+ vec_free (s);
+ return 0;
+}
+
+/* *INDENT-OFF* */
+VLIB_CLI_COMMAND (ipsec_show_backends_command, static) = {
+ .path = "show ipsec backends",
+ .short_help = "show ipsec backends",
+ .function = ipsec_show_backends_command_fn,
+};
+/* *INDENT-ON* */
+
+static clib_error_t *
+ipsec_select_backend_command_fn (vlib_main_t * vm,
+ unformat_input_t * input,
+ vlib_cli_command_t * cmd)
+{
+ u32 backend_index;
+ ipsec_main_t *im = &ipsec_main;
+
+ if (pool_elts (im->sad) > 0)
+ {
+ return clib_error_return (0,
+ "Cannot change IPsec backend, while %u SA entries are configured",
+ pool_elts (im->sad));
+ }
+
+ unformat_input_t _line_input, *line_input = &_line_input;
+ /* Get a line of input. */
+ if (!unformat_user (input, unformat_line_input, line_input))
+ return 0;
+
+ if (unformat (line_input, "ah"))
+ {
+ if (unformat (line_input, "%u", &backend_index))
+ {
+ if (ipsec_select_ah_backend (im, backend_index) < 0)
+ {
+ return clib_error_return (0, "Invalid AH backend index `%u'",
+ backend_index);
+ }
+ }
+ else
+ {
+ return clib_error_return (0, "Invalid backend index `%U'",
+ format_unformat_error, line_input);
+ }
+ }
+ else if (unformat (line_input, "esp"))
+ {
+ if (unformat (line_input, "%u", &backend_index))
+ {
+ if (ipsec_select_esp_backend (im, backend_index) < 0)
+ {
+ return clib_error_return (0, "Invalid ESP backend index `%u'",
+ backend_index);
+ }
+ }
+ else
+ {
+ return clib_error_return (0, "Invalid backend index `%U'",
+ format_unformat_error, line_input);
+ }
+ }
+ else
+ {
+ return clib_error_return (0, "Unknown input `%U'",
+ format_unformat_error, line_input);
+ }
+
+ return 0;
+}
+
+/* *INDENT-OFF* */
+VLIB_CLI_COMMAND (ipsec_select_backend_command, static) = {
+ .path = "ipsec select backend",
+ .short_help = "ipsec select backend <ah|esp> <backend index>",
+ .function = ipsec_select_backend_command_fn,
+};
+
+/* *INDENT-ON* */
+
+static clib_error_t *
clear_ipsec_counters_command_fn (vlib_main_t * vm,
unformat_input_t * input,
vlib_cli_command_t * cmd)