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pbrd: VTY_GET_CONTEXT can fail

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Although VTY_GET_CONTEXT can return a failed value, it will
never happen in pbrd because of how context work.  In
any event add some code to make coverity happy

Signed-off-by: Donald Sharp <sharpd@nvidia.com>
This commit is contained in:
Donald Sharp 2022-08-15 12:01:02 -04:00
parent 241b791e83
commit 7021983670
1 changed files with 54 additions and 0 deletions
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54
pbrd/pbr_vty.c
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@ -137,6 +137,9 @@ DEFPY(pbr_map_match_src, pbr_map_match_src_cmd,
{
struct pbr_map_sequence *pbrms = VTY_GET_CONTEXT(pbr_map_sequence);
if (!pbrms)
return CMD_WARNING_CONFIG_FAILED;
if (pbrms->dst && pbrms->family && prefix->family != pbrms->family) {
vty_out(vty, "Cannot mismatch families within match src/dst\n");
return CMD_WARNING_CONFIG_FAILED;
@ -170,6 +173,9 @@ DEFPY(pbr_map_match_dst, pbr_map_match_dst_cmd,
{
struct pbr_map_sequence *pbrms = VTY_GET_CONTEXT(pbr_map_sequence);
if (!pbrms)
return CMD_WARNING_CONFIG_FAILED;
if (pbrms->src && pbrms->family && prefix->family != pbrms->family) {
vty_out(vty, "Cannot mismatch families within match src/dst\n");
return CMD_WARNING_CONFIG_FAILED;
@ -204,6 +210,9 @@ DEFPY(pbr_map_match_ip_proto, pbr_map_match_ip_proto_cmd,
struct pbr_map_sequence *pbrms = VTY_GET_CONTEXT(pbr_map_sequence);
struct protoent *p;
if (!pbrms)
return CMD_WARNING_CONFIG_FAILED;
if (!no) {
p = getprotobyname(ip_proto);
if (!p) {
@ -228,6 +237,9 @@ DEFPY(pbr_map_match_src_port, pbr_map_match_src_port_cmd,
{
struct pbr_map_sequence *pbrms = VTY_GET_CONTEXT(pbr_map_sequence);
if (!pbrms)
return CMD_WARNING_CONFIG_FAILED;
if (!no) {
if (pbrms->src_prt == port)
return CMD_SUCCESS;
@ -250,6 +262,9 @@ DEFPY(pbr_map_match_dst_port, pbr_map_match_dst_port_cmd,
{
struct pbr_map_sequence *pbrms = VTY_GET_CONTEXT(pbr_map_sequence);
if (!pbrms)
return CMD_WARNING_CONFIG_FAILED;
if (!no) {
if (pbrms->dst_prt == port)
return CMD_SUCCESS;
@ -274,6 +289,9 @@ DEFPY(pbr_map_match_dscp, pbr_map_match_dscp_cmd,
char dscpname[100];
uint8_t rawDscp;
if (!pbrms)
return CMD_WARNING_CONFIG_FAILED;
/* Discriminate dscp enums (cs0, cs1 etc.) and numbers */
bool isANumber = true;
for (int i = 0; i < (int)strlen(dscp); i++) {
@ -333,6 +351,9 @@ DEFPY(pbr_map_match_ecn, pbr_map_match_ecn_cmd,
{
struct pbr_map_sequence *pbrms = VTY_GET_CONTEXT(pbr_map_sequence);
if (!pbrms)
return CMD_WARNING_CONFIG_FAILED;
if (!no) {
if ((pbrms->dsfield & PBR_DSFIELD_ECN) == ecn)
return CMD_SUCCESS;
@ -357,6 +378,9 @@ DEFPY(pbr_map_match_mark, pbr_map_match_mark_cmd,
{
struct pbr_map_sequence *pbrms = VTY_GET_CONTEXT(pbr_map_sequence);
if (!pbrms)
return CMD_WARNING_CONFIG_FAILED;
#ifndef GNU_LINUX
vty_out(vty, "pbr marks are not supported on this platform\n");
return CMD_WARNING_CONFIG_FAILED;
@ -417,6 +441,9 @@ DEFPY(pbr_map_action_queue_id, pbr_map_action_queue_id_cmd,
{
struct pbr_map_sequence *pbrms = VTY_GET_CONTEXT(pbr_map_sequence);
if (!pbrms)
return CMD_WARNING_CONFIG_FAILED;
if (!no)
pbrms->action_queue_id = queue_id;
else if ((uint32_t)queue_id == pbrms->action_queue_id)
@ -435,6 +462,9 @@ DEFPY(pbr_map_action_pcp, pbr_map_action_pcp_cmd, "[no] set pcp <(0-7)$pcp>",
{
struct pbr_map_sequence *pbrms = VTY_GET_CONTEXT(pbr_map_sequence);
if (!pbrms)
return CMD_WARNING_CONFIG_FAILED;
if (!no)
pbrms->action_pcp = pcp;
else if (pcp == pbrms->action_pcp)
@ -454,6 +484,9 @@ DEFPY(pbr_map_action_vlan_id, pbr_map_action_vlan_id_cmd,
{
struct pbr_map_sequence *pbrms = VTY_GET_CONTEXT(pbr_map_sequence);
if (!pbrms)
return CMD_WARNING_CONFIG_FAILED;
if (!no)
pbrms->action_vlan_id = vlan_id;
else if (pbrms->action_vlan_id == vlan_id)
@ -472,6 +505,9 @@ DEFPY(pbr_map_action_strip_vlan, pbr_map_action_strip_vlan_cmd,
{
struct pbr_map_sequence *pbrms = VTY_GET_CONTEXT(pbr_map_sequence);
if (!pbrms)
return CMD_WARNING_CONFIG_FAILED;
if (!no)
pbrms->action_vlan_flags = PBR_MAP_STRIP_INNER_ANY;
else
@ -492,6 +528,9 @@ DEFPY(pbr_map_nexthop_group, pbr_map_nexthop_group_cmd,
struct pbr_map_sequence *pbrms = VTY_GET_CONTEXT(pbr_map_sequence);
struct nexthop_group_cmd *nhgc;
if (!pbrms)
return CMD_WARNING_CONFIG_FAILED;
nhgc = nhgc_find(name);
if (!nhgc) {
vty_out(vty, "Specified nexthop-group %s does not exist\n",
@ -522,6 +561,9 @@ DEFPY(no_pbr_map_nexthop_group, no_pbr_map_nexthop_group_cmd,
{
struct pbr_map_sequence *pbrms = VTY_GET_CONTEXT(pbr_map_sequence);
if (!pbrms)
return CMD_WARNING_CONFIG_FAILED;
pbrms_clear_set_config(pbrms);
return CMD_SUCCESS;
@ -548,6 +590,9 @@ DEFPY(pbr_map_nexthop, pbr_map_nexthop_cmd,
struct nexthop nhop;
struct nexthop *nh = NULL;
if (!pbrms)
return CMD_WARNING_CONFIG_FAILED;
if (vrf_name)
vrf = vrf_lookup_by_name(vrf_name);
else
@ -670,6 +715,9 @@ DEFPY(no_pbr_map_nexthop, no_pbr_map_nexthop_cmd,
{
struct pbr_map_sequence *pbrms = VTY_GET_CONTEXT(pbr_map_sequence);
if (!pbrms)
return CMD_WARNING_CONFIG_FAILED;
pbrms_clear_set_config(pbrms);
return CMD_SUCCESS;
@ -684,6 +732,9 @@ DEFPY(pbr_map_vrf, pbr_map_vrf_cmd,
{
struct pbr_map_sequence *pbrms = VTY_GET_CONTEXT(pbr_map_sequence);
if (!pbrms)
return CMD_WARNING_CONFIG_FAILED;
/*
* If an equivalent set vrf * exists, just return success.
*/
@ -722,6 +773,9 @@ DEFPY(no_pbr_map_vrf, no_pbr_map_vrf_cmd,
{
struct pbr_map_sequence *pbrms = VTY_GET_CONTEXT(pbr_map_sequence);
if (!pbrms)
return CMD_WARNING_CONFIG_FAILED;
pbrms_clear_set_config(pbrms);
return CMD_SUCCESS;