[dpdk-dev] [PATCH v2] lib/telemetry: fix passing full params string to command

[dpdk-dev] [PATCH v2] lib/telemetry: fix passing full params string to command

[Ciara Power]

Telemetry only passed the first param to the command handler if multiple
were entered by the user, separated by commas. Telemetry is required to
pass the full params string to the command, by splitting by a comma
delimiter only once to remove the command part of the string. This will
enable future commands to take multiple param values.

Fixes: b1ad0e124536 ("rawdev: add telemetry callbacks")
Fixes: c190daedb9b1 ("ethdev: add telemetry callbacks")
Fixes: 6dd571fd07c3 ("telemetry: introduce new functionality")
Cc: bruce.richardson@intel.com
Cc: stable@dpdk.org

Signed-off-by: Ciara Power <ciara.power@intel.com>

---
v2: modified log string
---
 lib/librte_ethdev/rte_ethdev.c   | 12 ++++++++++--
 lib/librte_rawdev/rte_rawdev.c   |  6 +++++-
 lib/librte_telemetry/telemetry.c |  2 +-
 3 files changed, 16 insertions(+), 4 deletions(-)

diff --git a/lib/librte_ethdev/rte_ethdev.c b/lib/librte_ethdev/rte_ethdev.c
index 7858ad5f11..a00a9e4d36 100644
--- a/lib/librte_ethdev/rte_ethdev.c
+++ b/lib/librte_ethdev/rte_ethdev.c
@@ -5284,11 +5284,15 @@ handle_port_xstats(const char *cmd __rte_unused,
 	struct rte_eth_xstat_name *xstat_names;
 	int port_id, num_xstats;
 	int i, ret;
+	char *end_param;
 
 	if (params == NULL || strlen(params) == 0 || !isdigit(*params))
 		return -1;
 
-	port_id = atoi(params);
+	port_id = strtoul(params, &end_param, 0);
+	if (*end_param != '\0')
+		RTE_ETHDEV_LOG(NOTICE,
+			"Extra parameters passed to ethdev telemetry command, ignoring");
 	if (!rte_eth_dev_is_valid_port(port_id))
 		return -1;
 
@@ -5330,11 +5334,15 @@ handle_port_link_status(const char *cmd __rte_unused,
 	static const char *status_str = "status";
 	int ret, port_id;
 	struct rte_eth_link link;
+	char *end_param;
 
 	if (params == NULL || strlen(params) == 0 || !isdigit(*params))
 		return -1;
 
-	port_id = atoi(params);
+	port_id = strtoul(params, &end_param, 0);
+	if (*end_param != '\0')
+		RTE_ETHDEV_LOG(NOTICE,
+			"Extra parameters passed to ethdev telemetry command, ignoring");
 	if (!rte_eth_dev_is_valid_port(port_id))
 		return -1;
 
diff --git a/lib/librte_rawdev/rte_rawdev.c b/lib/librte_rawdev/rte_rawdev.c
index 8f84d0b228..5e5f8f0cca 100644
--- a/lib/librte_rawdev/rte_rawdev.c
+++ b/lib/librte_rawdev/rte_rawdev.c
@@ -565,11 +565,15 @@ handle_dev_xstats(const char *cmd __rte_unused,
 	struct rte_rawdev_xstats_name *xstat_names;
 	int dev_id, num_xstats, i, ret;
 	unsigned int *ids;
+	char *end_param;
 
 	if (params == NULL || strlen(params) == 0 || !isdigit(*params))
 		return -1;
 
-	dev_id = atoi(params);
+	dev_id = strtoul(params, &end_param, 0);
+	if (*end_param != '\0')
+		RTE_RDEV_LOG(NOTICE,
+			"Extra parameters passed to rawdev telemetry command, ignoring");
 	if (!rte_rawdev_pmd_is_valid_dev(dev_id))
 		return -1;
 
diff --git a/lib/librte_telemetry/telemetry.c b/lib/librte_telemetry/telemetry.c
index 0252282735..c6c2948709 100644
--- a/lib/librte_telemetry/telemetry.c
+++ b/lib/librte_telemetry/telemetry.c
@@ -248,7 +248,7 @@ client_handler(void *sock_id)
 	while (bytes > 0) {
 		buffer[bytes] = 0;
 		const char *cmd = strtok(buffer, ",");
-		const char *param = strtok(NULL, ",");
+		const char *param = strtok(NULL, "\0");
 		telemetry_cb fn = unknown_command;
 		int i;
 
-- 
2.17.1

Re: [dpdk-dev] [PATCH v2] lib/telemetry: fix passing full params string to command

[Bruce Richardson]

On Thu, Aug 27, 2020 at 09:39:22AM +0100, Ciara Power wrote:
> Telemetry only passed the first param to the command handler if multiple
> were entered by the user, separated by commas. Telemetry is required to
> pass the full params string to the command, by splitting by a comma
> delimiter only once to remove the command part of the string. This will
> enable future commands to take multiple param values.
> 
> Fixes: b1ad0e124536 ("rawdev: add telemetry callbacks")
> Fixes: c190daedb9b1 ("ethdev: add telemetry callbacks")
> Fixes: 6dd571fd07c3 ("telemetry: introduce new functionality")
> Cc: bruce.richardson@intel.com
> Cc: stable@dpdk.org
> 
> Signed-off-by: Ciara Power <ciara.power@intel.com>
> 
Missed threading with V1, but otherwise LGTM.

Acked-by: Bruce Richardson <bruce.richardson@intel.com>

Re: [dpdk-dev] [PATCH v2] lib/telemetry: fix passing full params string to command

[Thomas Monjalon]

27/08/2020 11:14, Bruce Richardson:
> On Thu, Aug 27, 2020 at 09:39:22AM +0100, Ciara Power wrote:
> > Telemetry only passed the first param to the command handler if multiple
> > were entered by the user, separated by commas. Telemetry is required to
> > pass the full params string to the command, by splitting by a comma
> > delimiter only once to remove the command part of the string. This will
> > enable future commands to take multiple param values.
> > 
> > Fixes: b1ad0e124536 ("rawdev: add telemetry callbacks")
> > Fixes: c190daedb9b1 ("ethdev: add telemetry callbacks")
> > Fixes: 6dd571fd07c3 ("telemetry: introduce new functionality")
> > Cc: bruce.richardson@intel.com
> > Cc: stable@dpdk.org
> > 
> > Signed-off-by: Ciara Power <ciara.power@intel.com>
> > 
> Missed threading with V1, but otherwise LGTM.
> 
> Acked-by: Bruce Richardson <bruce.richardson@intel.com>

Applied, thanks