X-Git-Url: http://git.droids-corp.org/?a=blobdiff_plain;f=drivers%2Fnet%2Faf_packet%2Frte_eth_af_packet.c;h=5715dcb90256bb0ea1cfc6328a9eb4093048effd;hb=218259590ea4cdef53ff4d42fdf517e26a5e7c49;hp=17b4ffec8900b08c29b3dbb81c4c10db30a0fdc6;hpb=f4ff17a465d2d908c400fc5de12709642523a898;p=dpdk.git

diff --git a/drivers/net/af_packet/rte_eth_af_packet.c b/drivers/net/af_packet/rte_eth_af_packet.c
index 17b4ffec89..5715dcb902 100644
--- a/drivers/net/af_packet/rte_eth_af_packet.c
+++ b/drivers/net/af_packet/rte_eth_af_packet.c
@@ -99,6 +99,7 @@ struct pmd_internals {
 	unsigned nb_queues;
 
 	int if_index;
+	char *if_name;
 	struct ether_addr eth_addr;
 
 	struct tpacket_req req;
@@ -267,9 +268,16 @@ eth_dev_stop(struct rte_eth_dev *dev)
 		sockfd = internals->rx_queue[i].sockfd;
 		if (sockfd != -1)
 			close(sockfd);
-		sockfd = internals->tx_queue[i].sockfd;
-		if (sockfd != -1)
-			close(sockfd);
+
+		/* Prevent use after free in case tx fd == rx fd */
+		if (sockfd != internals->tx_queue[i].sockfd) {
+			sockfd = internals->tx_queue[i].sockfd;
+			if (sockfd != -1)
+				close(sockfd);
+		}
+
+		internals->rx_queue[i].sockfd = -1;
+		internals->tx_queue[i].sockfd = -1;
 	}
 
 	dev->data->dev_link.link_status = ETH_LINK_DOWN;
@@ -411,12 +419,80 @@ eth_tx_queue_setup(struct rte_eth_dev *dev,
 	return 0;
 }
 
+static int
+eth_dev_mtu_set(struct rte_eth_dev *dev, uint16_t mtu)
+{
+	struct pmd_internals *internals = dev->data->dev_private;
+	struct ifreq ifr = { .ifr_mtu = mtu };
+	int ret;
+	int s;
+	unsigned int data_size = internals->req.tp_frame_size -
+				 TPACKET2_HDRLEN -
+				 sizeof(struct sockaddr_ll);
+
+	if (mtu > data_size)
+		return -EINVAL;
+
+	s = socket(PF_INET, SOCK_DGRAM, 0);
+	if (s < 0)
+		return -EINVAL;
+
+	strncpy(ifr.ifr_name, internals->if_name, IFNAMSIZ);
+	ret = ioctl(s, SIOCSIFMTU, &ifr);
+	close(s);
+
+	if (ret < 0)
+		return -EINVAL;
+
+	return 0;
+}
+
+static void
+eth_dev_change_flags(char *if_name, uint32_t flags, uint32_t mask)
+{
+	struct ifreq ifr;
+	int s;
+
+	s = socket(PF_INET, SOCK_DGRAM, 0);
+	if (s < 0)
+		return;
+
+	strncpy(ifr.ifr_name, if_name, IFNAMSIZ);
+	if (ioctl(s, SIOCGIFFLAGS, &ifr) < 0)
+		goto out;
+	ifr.ifr_flags &= mask;
+	ifr.ifr_flags |= flags;
+	if (ioctl(s, SIOCSIFFLAGS, &ifr) < 0)
+		goto out;
+out:
+	close(s);
+}
+
+static void
+eth_dev_promiscuous_enable(struct rte_eth_dev *dev)
+{
+	struct pmd_internals *internals = dev->data->dev_private;
+
+	eth_dev_change_flags(internals->if_name, IFF_PROMISC, ~0);
+}
+
+static void
+eth_dev_promiscuous_disable(struct rte_eth_dev *dev)
+{
+	struct pmd_internals *internals = dev->data->dev_private;
+
+	eth_dev_change_flags(internals->if_name, 0, ~IFF_PROMISC);
+}
+
 static const struct eth_dev_ops ops = {
 	.dev_start = eth_dev_start,
 	.dev_stop = eth_dev_stop,
 	.dev_close = eth_dev_close,
 	.dev_configure = eth_dev_configure,
 	.dev_infos_get = eth_dev_info,
+	.mtu_set = eth_dev_mtu_set,
+	.promiscuous_enable = eth_dev_promiscuous_enable,
+	.promiscuous_disable = eth_dev_promiscuous_disable,
 	.rx_queue_setup = eth_rx_queue_setup,
 	.tx_queue_setup = eth_tx_queue_setup,
 	.rx_queue_release = eth_queue_release,
@@ -532,6 +608,7 @@ rte_pmd_init_internals(const char *name,
 		        name);
 		goto error_early;
 	}
+	(*internals)->if_name = strdup(pair->value);
 	(*internals)->if_index = ifr.ifr_ifindex;
 
 	if (ioctl(sockfd, SIOCGIFHWADDR, &ifr) == -1) {
@@ -723,6 +800,7 @@ error:
 			((*internals)->rx_queue[q].sockfd != qsockfd))
 			close((*internals)->rx_queue[q].sockfd);
 	}
+	free((*internals)->if_name);
 	rte_free(*internals);
 error_early:
 	rte_free(data);
@@ -891,6 +969,7 @@ rte_pmd_af_packet_remove(const char *name)
 		rte_free(internals->rx_queue[q].rd);
 		rte_free(internals->tx_queue[q].rd);
 	}
+	free(internals->if_name);
 
 	rte_free(eth_dev->data->dev_private);
 	rte_free(eth_dev->data);