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authorBenoît Ganne <bganne@cisco.com>2020-09-30 18:35:27 +0200
committerDamjan Marion <dmarion@me.com>2020-10-02 10:34:35 +0000
commit1f6a6b8b2b4efd4d6735ffd6fa683a0190f232e2 (patch)
tree90d3f439d9c75fcb171103ef82918b5ad246653e
parent2b92c705791a8186e20b00bbb1c8fc6fd1eddff8 (diff)
ikev2: fix cli memory leak
Type: fix Change-Id: Ibdd83fa336427ec0c66224ecebb1b6bd36d1d1ba Signed-off-by: Benoît Ganne <bganne@cisco.com>
-rw-r--r--src/plugins/ikev2/ikev2_cli.c70
1 files changed, 40 insertions, 30 deletions
diff --git a/src/plugins/ikev2/ikev2_cli.c b/src/plugins/ikev2/ikev2_cli.c
index 84bf84fe047..727e3473627 100644
--- a/src/plugins/ikev2/ikev2_cli.c
+++ b/src/plugins/ikev2/ikev2_cli.c
@@ -249,6 +249,23 @@ VLIB_CLI_COMMAND (show_ikev2_sa_command, static) = {
};
/* *INDENT-ON* */
+static uword
+unformat_ikev2_token (unformat_input_t * input, va_list * va)
+{
+ u8 **string_return = va_arg (*va, u8 **);
+ const char *token_chars = "a-zA-Z0-9_";
+ if (*string_return)
+ {
+ /* if string_return was already allocated (eg. because of a previous
+ * partial match with a successful unformat_token()), we must free it
+ * before reusing the pointer, otherwise we'll be leaking memory
+ */
+ vec_free (*string_return);
+ *string_return = 0;
+ }
+ return unformat_user (input, unformat_token, token_chars, string_return);
+}
+
static clib_error_t *
ikev2_profile_add_del_command_fn (vlib_main_t * vm,
unformat_input_t * input,
@@ -271,27 +288,23 @@ ikev2_profile_add_del_command_fn (vlib_main_t * vm,
ikev2_transform_integ_type_t integ_alg;
ikev2_transform_dh_type_t dh_type;
- const char *valid_chars = "a-zA-Z0-9_";
-
if (!unformat_user (input, unformat_line_input, line_input))
return 0;
while (unformat_check_input (line_input) != UNFORMAT_END_OF_INPUT)
{
- if (unformat (line_input, "add %U", unformat_token, valid_chars, &name))
+ if (unformat (line_input, "add %U", unformat_ikev2_token, &name))
{
r = ikev2_add_del_profile (vm, name, 1);
goto done;
}
- else
- if (unformat
- (line_input, "del %U", unformat_token, valid_chars, &name))
+ else if (unformat (line_input, "del %U", unformat_ikev2_token, &name))
{
r = ikev2_add_del_profile (vm, name, 0);
goto done;
}
else if (unformat (line_input, "set %U auth shared-key-mic string %v",
- unformat_token, valid_chars, &name, &data))
+ unformat_ikev2_token, &name, &data))
{
r =
ikev2_set_profile_auth (vm, name,
@@ -300,7 +313,7 @@ ikev2_profile_add_del_command_fn (vlib_main_t * vm,
goto done;
}
else if (unformat (line_input, "set %U auth shared-key-mic hex %U",
- unformat_token, valid_chars, &name,
+ unformat_ikev2_token, &name,
unformat_hex_string, &data))
{
r =
@@ -310,7 +323,7 @@ ikev2_profile_add_del_command_fn (vlib_main_t * vm,
goto done;
}
else if (unformat (line_input, "set %U auth rsa-sig cert-file %v",
- unformat_token, valid_chars, &name, &data))
+ unformat_ikev2_token, &name, &data))
{
r =
ikev2_set_profile_auth (vm, name, IKEV2_AUTH_METHOD_RSA_SIG, data,
@@ -318,7 +331,7 @@ ikev2_profile_add_del_command_fn (vlib_main_t * vm,
goto done;
}
else if (unformat (line_input, "set %U id local %U %U",
- unformat_token, valid_chars, &name,
+ unformat_ikev2_token, &name,
unformat_ikev2_id_type, &id_type,
unformat_ip4_address, &ip4))
{
@@ -329,7 +342,7 @@ ikev2_profile_add_del_command_fn (vlib_main_t * vm,
goto done;
}
else if (unformat (line_input, "set %U id local %U 0x%U",
- unformat_token, valid_chars, &name,
+ unformat_ikev2_token, &name,
unformat_ikev2_id_type, &id_type,
unformat_hex_string, &data))
{
@@ -338,7 +351,7 @@ ikev2_profile_add_del_command_fn (vlib_main_t * vm,
goto done;
}
else if (unformat (line_input, "set %U id local %U %v",
- unformat_token, valid_chars, &name,
+ unformat_ikev2_token, &name,
unformat_ikev2_id_type, &id_type, &data))
{
r =
@@ -346,7 +359,7 @@ ikev2_profile_add_del_command_fn (vlib_main_t * vm,
goto done;
}
else if (unformat (line_input, "set %U id remote %U %U",
- unformat_token, valid_chars, &name,
+ unformat_ikev2_token, &name,
unformat_ikev2_id_type, &id_type,
unformat_ip4_address, &ip4))
{
@@ -357,7 +370,7 @@ ikev2_profile_add_del_command_fn (vlib_main_t * vm,
goto done;
}
else if (unformat (line_input, "set %U id remote %U 0x%U",
- unformat_token, valid_chars, &name,
+ unformat_ikev2_token, &name,
unformat_ikev2_id_type, &id_type,
unformat_hex_string, &data))
{
@@ -366,7 +379,7 @@ ikev2_profile_add_del_command_fn (vlib_main_t * vm,
goto done;
}
else if (unformat (line_input, "set %U id remote %U %v",
- unformat_token, valid_chars, &name,
+ unformat_ikev2_token, &name,
unformat_ikev2_id_type, &id_type, &data))
{
r = ikev2_set_profile_id (vm, name, (u8) id_type, data, /*remote */
@@ -375,7 +388,7 @@ ikev2_profile_add_del_command_fn (vlib_main_t * vm,
}
else if (unformat (line_input, "set %U traffic-selector local "
"ip-range %U - %U port-range %u - %u protocol %u",
- unformat_token, valid_chars, &name,
+ unformat_ikev2_token, &name,
unformat_ip4_address, &ip4,
unformat_ip4_address, &end_addr,
&tmp1, &tmp2, &tmp3))
@@ -387,7 +400,7 @@ ikev2_profile_add_del_command_fn (vlib_main_t * vm,
}
else if (unformat (line_input, "set %U traffic-selector remote "
"ip-range %U - %U port-range %u - %u protocol %u",
- unformat_token, valid_chars, &name,
+ unformat_ikev2_token, &name,
unformat_ip4_address, &ip4,
unformat_ip4_address, &end_addr,
&tmp1, &tmp2, &tmp3))
@@ -398,7 +411,7 @@ ikev2_profile_add_del_command_fn (vlib_main_t * vm,
goto done;
}
else if (unformat (line_input, "set %U responder %U %U",
- unformat_token, valid_chars, &name,
+ unformat_ikev2_token, &name,
unformat_vnet_sw_interface, vnm,
&responder_sw_if_index, unformat_ip4_address,
&responder_ip4))
@@ -409,7 +422,7 @@ ikev2_profile_add_del_command_fn (vlib_main_t * vm,
goto done;
}
else if (unformat (line_input, "set %U tunnel %U",
- unformat_token, valid_chars, &name,
+ unformat_ikev2_token, &name,
unformat_vnet_sw_interface, vnm, &tun_sw_if_index))
{
r = ikev2_set_profile_tunnel_interface (vm, name, tun_sw_if_index);
@@ -419,7 +432,7 @@ ikev2_profile_add_del_command_fn (vlib_main_t * vm,
if (unformat
(line_input,
"set %U ike-crypto-alg %U %u ike-integ-alg %U ike-dh %U",
- unformat_token, valid_chars, &name,
+ unformat_ikev2_token, &name,
unformat_ikev2_transform_encr_type, &crypto_alg, &tmp1,
unformat_ikev2_transform_integ_type, &integ_alg,
unformat_ikev2_transform_dh_type, &dh_type))
@@ -433,7 +446,7 @@ ikev2_profile_add_del_command_fn (vlib_main_t * vm,
if (unformat
(line_input,
"set %U ike-crypto-alg %U %u ike-dh %U",
- unformat_token, valid_chars, &name,
+ unformat_ikev2_token, &name,
unformat_ikev2_transform_encr_type, &crypto_alg, &tmp1,
unformat_ikev2_transform_dh_type, &dh_type))
{
@@ -447,7 +460,7 @@ ikev2_profile_add_del_command_fn (vlib_main_t * vm,
if (unformat
(line_input,
"set %U esp-crypto-alg %U %u esp-integ-alg %U",
- unformat_token, valid_chars, &name,
+ unformat_ikev2_token, &name,
unformat_ikev2_transform_encr_type, &crypto_alg, &tmp1,
unformat_ikev2_transform_integ_type, &integ_alg))
{
@@ -459,7 +472,7 @@ ikev2_profile_add_del_command_fn (vlib_main_t * vm,
else if (unformat
(line_input,
"set %U esp-crypto-alg %U %u",
- unformat_token, valid_chars, &name,
+ unformat_ikev2_token, &name,
unformat_ikev2_transform_encr_type, &crypto_alg, &tmp1))
{
r =
@@ -467,7 +480,7 @@ ikev2_profile_add_del_command_fn (vlib_main_t * vm,
goto done;
}
else if (unformat (line_input, "set %U sa-lifetime %lu %u %u %lu",
- unformat_token, valid_chars, &name,
+ unformat_ikev2_token, &name,
&tmp4, &tmp1, &tmp2, &tmp5))
{
r =
@@ -475,13 +488,13 @@ ikev2_profile_add_del_command_fn (vlib_main_t * vm,
goto done;
}
else if (unformat (line_input, "set %U udp-encap",
- unformat_token, valid_chars, &name))
+ unformat_ikev2_token, &name))
{
r = ikev2_set_profile_udp_encap (vm, name);
goto done;
}
else if (unformat (line_input, "set %U ipsec-over-udp port %u",
- unformat_token, valid_chars, &name, &tmp1))
+ unformat_ikev2_token, &name, &tmp1))
{
int rv = ikev2_set_profile_ipsec_udp_port (vm, name, tmp1, 1);
if (rv)
@@ -725,15 +738,12 @@ ikev2_initiate_command_fn (vlib_main_t * vm,
u32 tmp1;
u64 tmp2;
- const char *valid_chars = "a-zA-Z0-9_";
-
if (!unformat_user (input, unformat_line_input, line_input))
return 0;
while (unformat_check_input (line_input) != UNFORMAT_END_OF_INPUT)
{
- if (unformat
- (line_input, "sa-init %U", unformat_token, valid_chars, &name))
+ if (unformat (line_input, "sa-init %U", unformat_ikev2_token, &name))
{
r = ikev2_initiate_sa_init (vm, name);
goto done;