From 218259590ea4cdef53ff4d42fdf517e26a5e7c49 Mon Sep 17 00:00:00 2001 From: Chas Williams Date: Thu, 5 Jan 2017 08:53:43 -0500 Subject: [PATCH] net/af_packet: support promiscuous Add promiscuous support to the AF_PACKET PMD. The underlying Linux device's IF_PROMISC flag is toggled to enable or disable. Signed-off-by: Chas Williams Reviewed-by: Ferruh Yigit --- drivers/net/af_packet/rte_eth_af_packet.c | 39 +++++++++++++++++++++++ 1 file changed, 39 insertions(+) diff --git a/drivers/net/af_packet/rte_eth_af_packet.c b/drivers/net/af_packet/rte_eth_af_packet.c index c841ddc574..5715dcb902 100644 --- a/drivers/net/af_packet/rte_eth_af_packet.c +++ b/drivers/net/af_packet/rte_eth_af_packet.c @@ -447,6 +447,43 @@ eth_dev_mtu_set(struct rte_eth_dev *dev, uint16_t mtu) 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, @@ -454,6 +491,8 @@ static const struct eth_dev_ops ops = { .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, -- 2.20.1