The rte_kvargs_process() was used to parse KV pairs, it also supports
to parse 'only keys' (e.g. socket_id) type. And the callback function
parameter 'value' is NULL when parsed 'only keys'.
This patch fixes segment fault when parse --pdump args with 'only keys'
(e.g. 'port,queue=*').
Fixes: caa7028276b8 ("app/pdump: add tool for packet capturing")
Cc: stable@dpdk.org
Signed-off-by: Chengwen Feng <fengchengwen@huawei.com>
---
app/pdump/main.c | 12 ++++++++++++
1 file changed, 12 insertions(+)
@@ -170,6 +170,9 @@ parse_device_id(const char *key __rte_unused, const char *value,
{
struct pdump_tuples *pt = extra_args;
+ if (value == NULL)
+ return -EINVAL;
+
pt->device_id = strdup(value);
pt->dump_by_type = DEVICE_ID;
@@ -182,6 +185,9 @@ parse_queue(const char *key __rte_unused, const char *value, void *extra_args)
unsigned long n;
struct pdump_tuples *pt = extra_args;
+ if (value == NULL)
+ return -EINVAL;
+
if (!strcmp(value, "*"))
pt->queue = RTE_PDUMP_ALL_QUEUES;
else {
@@ -197,6 +203,9 @@ parse_rxtxdev(const char *key, const char *value, void *extra_args)
struct pdump_tuples *pt = extra_args;
+ if (value == NULL)
+ return -EINVAL;
+
if (!strcmp(key, PDUMP_RX_DEV_ARG)) {
strlcpy(pt->rx_dev, value, sizeof(pt->rx_dev));
/* identify the tx stream type for pcap vdev */
@@ -220,6 +229,9 @@ parse_uint_value(const char *key, const char *value, void *extra_args)
char *end;
int ret = 0;
+ if (value == NULL)
+ return -EINVAL;
+
errno = 0;
v = extra_args;
t = strtoul(value, &end, 10);