/* * netsniff-ng - the packet sniffing beast * Copyright 2009, 2010 Daniel Borkmann. * Copyright 2009, 2010 Emmanuel Roullit. * Copyright 2014, 2015 Tobias Klauser. * Subject to the GPL, version 2. */ #include #include #include #include #include #include #include #include #include #include "die.h" #include "xmalloc.h" #include "ring_tx.h" #include "built_in.h" static void set_packet_loss_discard(int sock) { int ret, discard = 1; ret = setsockopt(sock, SOL_PACKET, PACKET_LOSS, (void *) &discard, sizeof(discard)); if (ret < 0) panic("setsockopt: cannot set packet loss"); } void destroy_tx_ring(int sock, struct ring *ring) { int ret; munmap(ring->mm_space, ring->mm_len); ring->mm_len = 0; fmemset(&ring->layout, 0, sizeof(ring->layout)); ret = setsockopt(sock, SOL_PACKET, PACKET_TX_RING, &ring->layout, sizeof(ring->layout)); if (unlikely(ret)) panic("Cannot destroy the TX_RING: %s!\n", strerror(errno)); xfree(ring->frames); } static void setup_tx_ring_layout(int sock, struct ring *ring, size_t size, bool jumbo_support) { setup_ring_layout_generic(sock, ring, size, jumbo_support); set_sockopt_tpacket_v2(sock); ring_verify_layout(ring); } static void create_tx_ring(int sock, struct ring *ring, bool verbose) { int ret; retry: ret = setsockopt(sock, SOL_PACKET, PACKET_TX_RING, &ring->layout, sizeof(ring->layout)); if (errno == ENOMEM && ring->layout.tp_block_nr > 1) { ring->layout.tp_block_nr >>= 1; ring->layout.tp_frame_nr = ring->layout.tp_block_size / ring->layout.tp_frame_size * ring->layout.tp_block_nr; goto retry; } if (ret < 0) panic("Cannot allocate TX_RING!\n"); ring->mm_len = (size_t) ring->layout.tp_block_size * ring->layout.tp_block_nr; if (verbose) { printf("TX,V2: %.2Lf MiB, %u Frames, each %u Byte allocated\n", (long double) ring->mm_len / (1 << 20), ring->layout.tp_frame_nr, ring->layout.tp_frame_size); } } static void alloc_tx_ring_frames(int sock __maybe_unused, struct ring *ring) { alloc_ring_frames_generic(ring, ring->layout.tp_frame_nr, ring->layout.tp_frame_size); } void ring_tx_setup(struct ring *ring, int sock, size_t size, int ifindex, bool jumbo_support, bool verbose) { fmemset(ring, 0, sizeof(*ring)); set_packet_loss_discard(sock); setup_tx_ring_layout(sock, ring, size, jumbo_support); create_tx_ring(sock, ring, verbose); mmap_ring_generic(sock, ring); alloc_tx_ring_frames(sock, ring); bind_ring_generic(sock, ring, ifindex, true); }
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authorAleksander Morgado <aleksander@aleksander.es>2017-01-18 21:31:31 +0100
committerJohan Hovold <johan@kernel.org>2017-01-19 09:08:37 +0100
commit24d615a694d649aa2e167c3f97f62bdad07e3f84 (patch)
tree2fe33c115bdec6bf4b01e27afd90bb16fa668e22 /sound/firewire/fireworks
parent49def1853334396f948dcb4cedb9347abb318df5 (diff)
USB: serial: qcserial: add Dell DW5570 QDL
The Dell DW5570 is a re-branded Sierra Wireless MC8805 which will by default boot with vid 0x413c and pid 0x81a3. When triggered QDL download mode, the device switches to pid 0x81a6 and provides the standard TTY used for firmware upgrade. Cc: <stable@vger.kernel.org> Signed-off-by: Aleksander Morgado <aleksander@aleksander.es> Signed-off-by: Johan Hovold <johan@kernel.org>
Diffstat (limited to 'sound/firewire/fireworks')