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Descriptions of section entries:

	M: Maintainer Full name and E-mail address: Full Name <address@domain>
	   One maintainer per line.  Multiple M: lines acceptable.
	F: Files and directories with wildcard patterns.
	   A trailing slash includes all files and subdirectory files.
	   F:	drivers/net/	all files in and below drivers/net
	   F:	drivers/net/*	all files in drivers/net, but not below
	   One pattern per line.  Multiple F: lines acceptable.
	C: Single line comment related to current section.

		-----------------------------------

Build System
M:	Damjan Marion <damarion@cisco.com>
F:	Makefile
F:	src/*.ac
F:	src/*.am
F:	src/*.mk
F:	src/m4/

Build System Internal
M:	Dave Barach <dave@barachs.net>
F:	build-root/Makefile
F:	build-data/*

Doxygen
M:	Chris Luke <chrisy@flirble.org>
F:	doxygen/

Sphinx Documents
M:     John DeNisco <jdenisco@cisco.com>
M:     Ray Kinsella <raykinsella78@gmail.com>
F:     docs/

DPDK Development Packaging
M:	Damjan Marion <damarion@cisco.com>
F:	dpdk/
F:	dpdk/*

Infrastructure Library
M:	Dave Barach <dave@barachs.net>
F:	src/vppinfra/

VLIB Library
M:	Dave Barach <dave@barachs.net>
M:	Damjan Marion <damarion@cisco.com>
F:	src/vlib/

VLIB API Libraries
M:	Dave Barach <dave@barachs.net>
F:	src/vlibapi/
F:	src/vlibmemory/

VNET Bidirectonal Forwarding Detection (BFD)
M:	Klement Sekera <ksekera@cisco.com>
F:	src/vnet/bfd/

VNET Device Drivers
M:	Damjan Marion <damarion@cisco.com>
F:	src/vnet/devices/

VNET Device Drivers - DPDK Crypto
M:	Sergio Gonzalez Monroy <sergio.gonzalez.monroy@outlook.com>
M:      Radu Nicolau <radu.nicolau@intel.com>
F:	src/devices/dpdk/ipsec/

VNET Feature Arcs
M:	Dave Barach <dave@barachs.net>
M:	Damjan Marion <damarion@cisco.com>
F:	src/vnet/feature/

VNET FIB
M:	Neale Ranns <nranns@cisco.com>
F:	src/vnet/fib/
F:	src/vnet/mfib/
F:	src/vnet/dpo
F:	src/vnet/adj

VNET IPv4 and IPv6 LPM
M:	Dave Barach <dave@barachs.net>
F:	src/vnet/ip/

VNET Segment Routing (IPv6 and MPLS)
M:	Pablo Camarillo <pcamaril@cisco.com>
F:	src/vnet/srv6/
F:	src/vnet/srmpls/
F:	src/examples/srv6-sample-localsid/

VNET IPSec
M:	Matus Fabian <matfabia@cisco.com>
M:	Radu Nicolau <radu.nicolau@intel.com>
F:	src/vnet/ipsec/

VNET L2
M:	John Lo <loj@cisco.com>
F:	src/vnet/l2/

VNET Link Layer Discovery Protocol (LLDP)
M:	Klement Sekera <ksekera@cisco.com>
F:	src/vnet/lldp/

VNET LISP
M:	Florin Coras <fcoras@cisco.com>
F:	src/vnet/lisp-cp/
F:	src/vnet/lisp-gpe/

Plugin - MAP
M:	Ole Troan <ot@cisco.com>
F:	src/plugins/map

VNET MPLS
M:	Neale Ranns <nranns@cisco.com>
F:	src/vnet/mpls/

VNET Host Stack Session Layer
M:	Florin Coras <fcoras@cisco.com>
F:	src/vnet/session

VNET TCP Stack
M:	Florin Coras <fcoras@cisco.com>
F:	src/vnet/tcp

VNET VXLAN
M:	John Lo <loj@cisco.com>
F:	src/vnet/vxlan/

VNET VXLAN-GPE
M:	Keith Burns <alagalah@gmail.com>
M:	Hongjun Ni <hongjun.ni@intel.com>
F:	src/vnet/vxlan-gpe/

VNET IPIP
M:	Ole Troan <otroan@employees.org>
F:	src/vnet/ipip/

VNET TLS and TLS engine plugins
M: 	Florin Coras <fcoras@cisco.com>
M:	Ping Yu <ping.yu@intel.com>
F:	src/vnet/tls
F:	src/plugins/tlsopenssl
F:	src/plugins/tlsmbedtls

Plugin - ACL
M:	Andrew Yourtchenko <ayourtch@gmail.com>
F:	src/plugins/acl/
F:	src/plugins/acl.am

Plugin - flowprobe
M:	Ole Troan <otroan@employees.org>
F:	src/plugins/flowprobe/
F:	src/plugins/flowprobe.am

Plugin - GTPU
M:	Hongjun Ni <hongjun.ni@intel.com>
F:	src/plugins/gtpu/
F:	src/plugins/gtpu.am

Plugin - PPPoE
M:	Hongjun Ni <hongjun.ni@intel.com>
F:	src/plugins/pppoe/
F:	src/plugins/pppoe.am

Plugin - IPv6 Segment Routing Dynamic Proxy
M:	Francois Clad <fclad@cisco.com>
F:	src/plugins/srv6-ad/
F:	src/plugins/srv6_ad.am

Plugin - IPv6 Segment Routing Masquerading Proxy
M:	Francois Clad <fclad@cisco.com>
F:	src/plugins/srv6-am/
F:	src/plugins/srv6_am.am

Plugin - IPv6 Segment Routing Static Proxy
M:	Francois Clad <fclad@cisco.com>
F:	src/plugins/srv6-as/
F:	src/plugins/srv6_as.am

Plugin - Load Balancer
M:      Pierre Pfister <ppfister@cisco.com>
M:      Hongjun Ni <hongjun.ni@intel.com>
F:      src/plugins/lb/
F:      src/plugins/lb.am

Plugin - NSH
M:      Hongjun Ni <hongjun.ni@intel.com>
M:      Keith Burns <alagalah@gmail.com>
M:      Vengada <venggovi@cisco.com>
F:      src/plugins/nsh/
F:      src/plugins/nsh.am

Test Infrastructure
M:	Klement Sekera <ksekera@cisco.com>
M:  Paul Vinciguerra <pvinci@vinciconsulting.com>
F:	test/

SVM Library
M:	Dave Barach <dave@barachs.net>
F:	src/svm

VPP API TEST
M:	Dave Barach <dave@barachs.net>
F:	src/vat/

VPP Executable
M:	Dave Barach <dave@barachs.net>
F:	src/vpp/

Graphical Event Viewer
M:	Dave Barach <dave@barachs.net>
F:	src/tools/g2/

Performance Tooling
M:	Dave Barach <dave@barachs.net>
F:	src/tools/perftool/

Binary API Compiler
M:	Dave Barach <dave@barachs.net>
F:	src/tools/vppapigen/

Ganglia Telemetry Module
M:	Dave Barach <dave@barachs.net>
F:	gmod/

THE REST
C:	Contact vpp-dev Mailing List <vpp-dev@fd.io>
F:	*
F:	*/
and * limitations under the License. *------------------------------------------------------------------ */ #include <linux/if_packet.h> #include <sys/socket.h> #include <sys/ioctl.h> #include <net/if.h> #include <net/if_arp.h> #include <vlib/vlib.h> #include <vlib/unix/unix.h> #include <vnet/ip/ip.h> #include <vnet/ethernet/ethernet.h> #include <vnet/devices/af_packet/af_packet.h> #define foreach_af_packet_tx_func_error \ _(FRAME_NOT_READY, "tx frame not ready") \ _(TXRING_EAGAIN, "tx sendto temporary failure") \ _(TXRING_FATAL, "tx sendto fatal failure") \ _(TXRING_OVERRUN, "tx ring overrun") typedef enum { #define _(f,s) AF_PACKET_TX_ERROR_##f, foreach_af_packet_tx_func_error #undef _ AF_PACKET_TX_N_ERROR, } af_packet_tx_func_error_t; static char *af_packet_tx_func_error_strings[] = { #define _(n,s) s, foreach_af_packet_tx_func_error #undef _ }; static u8 * format_af_packet_device_name (u8 * s, va_list * args) { u32 i = va_arg (*args, u32); af_packet_main_t *apm = &af_packet_main; af_packet_if_t *apif = pool_elt_at_index (apm->interfaces, i); s = format (s, "host-%s", apif->host_if_name); return s; } static u8 * format_af_packet_device (u8 * s, va_list * args) { s = format (s, "Linux PACKET socket interface"); return s; } static u8 * format_af_packet_tx_trace (u8 * s, va_list * args) { s = format (s, "Unimplemented..."); return s; } static uword af_packet_interface_tx (vlib_main_t * vm, vlib_node_runtime_t * node, vlib_frame_t * frame) { af_packet_main_t *apm = &af_packet_main; u32 *buffers = vlib_frame_args (frame); u32 n_left = frame->n_vectors; u32 n_sent = 0; vnet_interface_output_runtime_t *rd = (void *) node->runtime_data; af_packet_if_t *apif = pool_elt_at_index (apm->interfaces, rd->dev_instance); int block = 0; u32 block_size = apif->tx_req->tp_block_size; u32 frame_size = apif->tx_req->tp_frame_size; u32 frame_num = apif->tx_req->tp_frame_nr; u8 *block_start = apif->tx_ring + block * block_size; u32 tx_frame = apif->next_tx_frame; struct tpacket2_hdr *tph; u32 frame_not_ready = 0; clib_spinlock_lock_if_init (&apif->lockp); while (n_left > 0) { u32 len; u32 offset = 0; vlib_buffer_t *b0; n_left--; u32 bi = buffers[0]; buffers++; tph = (struct tpacket2_hdr *) (block_start + tx_frame * frame_size); if (PREDICT_FALSE (tph->tp_status & (TP_STATUS_SEND_REQUEST | TP_STATUS_SENDING))) { frame_not_ready++; goto next; } do { b0 = vlib_get_buffer (vm, bi); len = b0->current_length; clib_memcpy ((u8 *) tph + TPACKET_ALIGN (sizeof (struct tpacket2_hdr)) + offset, vlib_buffer_get_current (b0), len); offset += len; } while ((bi = (b0->flags & VLIB_BUFFER_NEXT_PRESENT) ? b0->next_buffer : 0)); tph->tp_len = tph->tp_snaplen = offset; tph->tp_status = TP_STATUS_SEND_REQUEST; n_sent++; next: /* check if we've exhausted the ring */ if (PREDICT_FALSE (frame_not_ready + n_sent == frame_num)) break; tx_frame = (tx_frame + 1) % frame_num; } CLIB_MEMORY_BARRIER (); if (PREDICT_TRUE (n_sent)) { apif->next_tx_frame = tx_frame; if (PREDICT_FALSE (sendto (apif->fd, NULL, 0, MSG_DONTWAIT, NULL, 0) == -1)) { /* Uh-oh, drop & move on, but count whether it was fatal or not. * Note that we have no reliable way to properly determine the * disposition of the packets we just enqueued for delivery. */ vlib_error_count (vm, node->node_index, unix_error_is_fatal (errno) ? AF_PACKET_TX_ERROR_TXRING_FATAL : AF_PACKET_TX_ERROR_TXRING_EAGAIN, n_sent); } } clib_spinlock_unlock_if_init (&apif->lockp); if (PREDICT_FALSE (frame_not_ready)) vlib_error_count (vm, node->node_index, AF_PACKET_TX_ERROR_FRAME_NOT_READY, frame_not_ready); if (PREDICT_FALSE (frame_not_ready + n_sent == frame_num)) vlib_error_count (vm, node->node_index, AF_PACKET_TX_ERROR_TXRING_OVERRUN, n_left); vlib_buffer_free (vm, vlib_frame_args (frame), frame->n_vectors); return frame->n_vectors; } static void af_packet_set_interface_next_node (vnet_main_t * vnm, u32 hw_if_index, u32 node_index) { af_packet_main_t *apm = &af_packet_main; vnet_hw_interface_t *hw = vnet_get_hw_interface (vnm, hw_if_index); af_packet_if_t *apif = pool_elt_at_index (apm->interfaces, hw->dev_instance); /* Shut off redirection */ if (node_index == ~0) { apif->per_interface_next_index = node_index; return; } apif->per_interface_next_index = vlib_node_add_next (vlib_get_main (), af_packet_input_node.index, node_index); } static void af_packet_clear_hw_interface_counters (u32 instance) { /* Nothing for now */ } static clib_error_t * af_packet_interface_admin_up_down (vnet_main_t * vnm, u32 hw_if_index, u32 flags) { af_packet_main_t *apm = &af_packet_main; vnet_hw_interface_t *hw = vnet_get_hw_interface (vnm, hw_if_index); af_packet_if_t *apif = pool_elt_at_index (apm->interfaces, hw->dev_instance); u32 hw_flags; int rv, fd = socket (AF_UNIX, SOCK_DGRAM, 0); struct ifreq ifr; if (0 > fd) { clib_unix_warning ("af_packet_%s could not open socket", apif->host_if_name); return 0; } /* if interface is a bridge ignore */ if (apif->host_if_index < 0) goto error; /* no error */ /* use host_if_index in case host name has changed */ ifr.ifr_ifindex = apif->host_if_index; if ((rv = ioctl (fd, SIOCGIFNAME, &ifr)) < 0) { clib_unix_warning ("af_packet_%s ioctl could not retrieve eth name", apif->host_if_name); goto error; } apif->is_admin_up = (flags & VNET_SW_INTERFACE_FLAG_ADMIN_UP) != 0; if ((rv = ioctl (fd, SIOCGIFFLAGS, &ifr)) < 0) { clib_unix_warning ("af_packet_%s error: %d", apif->is_admin_up ? "up" : "down", rv); goto error; } if (apif->is_admin_up) { hw_flags = VNET_HW_INTERFACE_FLAG_LINK_UP; ifr.ifr_flags |= IFF_UP; } else { hw_flags = 0; ifr.ifr_flags &= ~IFF_UP; } if ((rv = ioctl (fd, SIOCSIFFLAGS, &ifr)) < 0) { clib_unix_warning ("af_packet_%s error: %d", apif->is_admin_up ? "up" : "down", rv); goto error; } vnet_hw_interface_set_flags (vnm, hw_if_index, hw_flags); error: if (0 <= fd) close (fd); return 0; /* no error */ } static clib_error_t * af_packet_subif_add_del_function (vnet_main_t * vnm, u32 hw_if_index, struct vnet_sw_interface_t *st, int is_add) { /* Nothing for now */ return 0; } static clib_error_t *af_packet_set_mac_address_function (struct vnet_hw_interface_t *hi, char *address) { af_packet_main_t *apm = &af_packet_main; af_packet_if_t *apif = pool_elt_at_index (apm->interfaces, hi->dev_instance); int rv, fd = socket (AF_UNIX, SOCK_DGRAM, 0); struct ifreq ifr; if (0 > fd) { clib_unix_warning ("af_packet_%s could not open socket", apif->host_if_name); return 0; } /* if interface is a bridge ignore */ if (apif->host_if_index < 0) goto error; /* no error */ /* use host_if_index in case host name has changed */ ifr.ifr_ifindex = apif->host_if_index; if ((rv = ioctl (fd, SIOCGIFNAME, &ifr)) < 0) { clib_unix_warning ("af_packet_%s ioctl could not retrieve eth name, error: %d", apif->host_if_name, rv); goto error; } clib_memcpy (ifr.ifr_hwaddr.sa_data, address, 6); ifr.ifr_hwaddr.sa_family = ARPHRD_ETHER; if ((rv = ioctl (fd, SIOCSIFHWADDR, &ifr)) < 0) { clib_unix_warning ("af_packet_%s ioctl could not set mac, error: %d", apif->host_if_name, rv); goto error; } error: if (0 <= fd) close (fd); return 0; /* no error */ } /* *INDENT-OFF* */ VNET_DEVICE_CLASS (af_packet_device_class) = { .name = "af-packet", .tx_function = af_packet_interface_tx, .format_device_name = format_af_packet_device_name, .format_device = format_af_packet_device, .format_tx_trace = format_af_packet_tx_trace, .tx_function_n_errors = AF_PACKET_TX_N_ERROR, .tx_function_error_strings = af_packet_tx_func_error_strings, .rx_redirect_to_node = af_packet_set_interface_next_node, .clear_counters = af_packet_clear_hw_interface_counters, .admin_up_down_function = af_packet_interface_admin_up_down, .subif_add_del_function = af_packet_subif_add_del_function, .mac_addr_change_function = af_packet_set_mac_address_function, }; VLIB_DEVICE_TX_FUNCTION_MULTIARCH (af_packet_device_class, af_packet_interface_tx) /* *INDENT-ON* */ /* * fd.io coding-style-patch-verification: ON * * Local Variables: * eval: (c-set-style "gnu") * End: */