userspace/libwr: clear struct hwtstamp_config before SIOCSHWTSTAMP ioctl

This commit is required to uplift a wr-switch kernel version Since the kernel commit 850a545bd net: validate HWTSTAMP ioctl parameters Follows: v3.1-rc9 Precedes: v3.2-rc1 SIOCSHWTSTAMP ioctl check whether field "flags" of struct hwtstamp_config is empty, otherwise ioctl returns -EINVAL Simillar commit exists for ppsi: 8d12b26d time-wrs: clear struct hwtstamp_config before SIOCSHWTSTAMP ioctl Signed-off-by: Adam Wujek <adam.wujek@cern.ch>

userspace/libwr: clear struct hwtstamp_config before SIOCSHWTSTAMP ioctl
This commit is required to uplift a wr-switch kernel version Since the kernel commit 850a545bd net: validate HWTSTAMP ioctl parameters Follows: v3.1-rc9 Precedes: v3.2-rc1 SIOCSHWTSTAMP ioctl check whether field "flags" of struct hwtstamp_config is empty, otherwise ioctl returns -EINVAL Simillar commit exists for ppsi: 8d12b26d time-wrs: clear struct hwtstamp_config before SIOCSHWTSTAMP ioctl Signed-off-by: Adam Wujek <adam.wujek@cern.ch>
3a33270f · Adam Wujek · 0b0fa97f · 3a33270f
Commit 3a33270f authored Jan 27, 2017 by Adam Wujek 💬
Hide whitespace changes
Inline Side-by-side

Showing with 6 additions and 0 deletions

ptpd_netif.c userspace/libwr/ptpd_netif.c +6 -0

No files found.
--- a/userspace/libwr/ptpd_netif.c
+++ b/userspace/libwr/ptpd_netif.c
@@ -226,6 +226,12 @@ struct wr_socket *ptpd_netif_create_socket(int sock_type, int flags,
 	struct ifreq ifr;
 	struct hwtstamp_config hwconfig;

+	/* Since version v3.2-rc1 (commit 850a545bd) linux kernel check whether
+	 * field "flags" of struct hwtstamp_config is empty, otherwise ioctl
+	 * for SIOCSHWTSTAMP returns -EINVAL */
+	memset(&ifr, 0, sizeof(struct ifreq));
+	memset(&hwconfig, 0, sizeof(struct hwtstamp_config));
+
 	strncpy(ifr.ifr_name, bind_addr->if_name, sizeof(ifr.ifr_name));

 	hwconfig.tx_type = HWTSTAMP_TX_ON;