wireguard: fix license headers - vpp - Vector Packet Processing

diff options

author	Artem Glazychev <artem.glazychev@xored.com>	2020-09-28 19:54:35 +0700
committer	Damjan Marion <dmarion@me.com>	2020-09-29 09:02:02 +0000
commit	a880b276d9998fa06c92355c4144fe3ca574c915 (patch)
tree	68a3983d9de92e69d8cbc4d8d36d46f8103d5bff /src/plugins/wireguard
parent	8bac1e8c868eea25f881f6b235df152f46382a1a (diff)

wireguard: fix license headers

Type: fix Signed-off-by: Artem Glazychev <artem.glazychev@xored.com> Change-Id: If5cc8894e0d1785dd04ab1e460e017580c9b41ce

Diffstat (limited to 'src/plugins/wireguard')

-rwxr-xr-x

src/plugins/wireguard/wireguard_api.c

-rwxr-xr-x

src/plugins/wireguard/wireguard_cli.c

-rw-r--r--

src/plugins/wireguard/wireguard_handoff.c

-rw-r--r--

src/plugins/wireguard/wireguard_if.c

-rw-r--r--

src/plugins/wireguard/wireguard_if.h

-rwxr-xr-x

src/plugins/wireguard/wireguard_input.c

-rwxr-xr-x

src/plugins/wireguard/wireguard_key.c

-rwxr-xr-x

src/plugins/wireguard/wireguard_key.h

-rwxr-xr-x

src/plugins/wireguard/wireguard_output_tun.c

-rwxr-xr-x

src/plugins/wireguard/wireguard_peer.c

-rwxr-xr-x

src/plugins/wireguard/wireguard_peer.h

-rwxr-xr-x

src/plugins/wireguard/wireguard_send.c

-rwxr-xr-x

src/plugins/wireguard/wireguard_send.h

13 files changed, 25 insertions, 2 deletions

/* * Copyright (c) 2015 Cisco and/or its affiliates. * Licensed under the Apache License, Version 2.0 (the "License"); * you may not use this file except in compliance with the License. * You may obtain a copy of the License at: * * http://www.apache.org/licenses/LICENSE-2.0 * * Unless required by applicable law or agreed to in writing, software * distributed under the License is distributed on an "AS IS" BASIS, * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. * See the License for the specific language governing permissions and * limitations under the License. */ /* * pg_input.c: buffer generator input * * Copyright (c) 2008 Eliot Dresselhaus * * Permission is hereby granted, free of charge, to any person obtaining * a copy of this software and associated documentation files (the * "Software"), to deal in the Software without restriction, including * without limitation the rights to use, copy, modify, merge, publish, * distribute, sublicense, and/or sell copies of the Software, and to * permit persons to whom the Software is furnished to do so, subject to * the following conditions: * * The above copyright notice and this permission notice shall be * included in all copies or substantial portions of the Software. * * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, * EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND * NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE * LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION * OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION * WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE. */ #include <vlib/vlib.h> #include <vnet/pg/pg.h> #include <vnet/vnet.h> #include <vnet/ethernet/ethernet.h> #include <vnet/feature/feature.h> #include <vnet/devices/devices.h> static int validate_buffer_data2 (vlib_buffer_t * b, pg_stream_t * s, u32 data_offset, u32 n_bytes) { u8 *bd, *pd, *pm; u32 i; bd = b->data; pd = s->fixed_packet_data + data_offset; pm = s->fixed_packet_data_mask + data_offset; if (pd + n_bytes >= vec_end (s->fixed_packet_data)) n_bytes = (pd < vec_end (s->fixed_packet_data) ? vec_end (s->fixed_packet_data) - pd : 0); for (i = 0; i < n_bytes; i++) if ((bd[i] & pm[i]) != pd[i]) break; if (i >= n_bytes) return 1; clib_warning ("buffer %U", format_vnet_buffer, b); clib_warning ("differ at index %d", i); clib_warning ("is %U", format_hex_bytes, bd, n_bytes); clib_warning ("mask %U", format_hex_bytes, pm, n_bytes); clib_warning ("expect %U", format_hex_bytes, pd, n_bytes); return 0; } static int validate_buffer_data (vlib_buffer_t * b, pg_stream_t * s) { return validate_buffer_data2 (b, s, 0, s->buffer_bytes); } always_inline void set_1 (void *a0, u64 v0, u64 v_min, u64 v_max, u32 n_bits, u32 is_net_byte_order) { ASSERT (v0 >= v_min && v0 <= v_max); if (n_bits == BITS (u8)) { ((u8 *) a0)[0] = v0; } else if (n_bits == BITS (u16)) { if (is_net_byte_order) v0 = clib_host_to_net_u16 (v0); clib_mem_unaligned (a0, u16) = v0; } else if (n_bits == BITS (u32)) { if (is_net_byte_order) v0 = clib_host_to_net_u32 (v0); clib_mem_unaligned (a0, u32) = v0; } else if (n_bits == BITS (u64)) { if (is_net_byte_order) v0 = clib_host_to_net_u64 (v0); clib_mem_unaligned (a0, u64) = v0; } } always_inline void set_2 (void *a0, void *a1, u64 v0, u64 v1, u64 v_min, u64 v_max, u32 n_bits, u32 is_net_byte_order, u32 is_increment) { ASSERT (v0 >= v_min && v0 <= v_max); ASSERT (v1 >= v_min && v1 <= (v_max + is_increment)); if (n_bits == BITS (u8)) { ((u8 *) a0)[0] = v0; ((u8 *) a1)[0] = v1; } else if (n_bits == BITS (u16)) { if (is_net_byte_order) { v0 = clib_host_to_net_u16 (v0); v1 = clib_host_to_net_u16 (v1); } clib_mem_unaligned (a0, u16) = v0; clib_mem_unaligned (a1, u16) = v1; } else if (n_bits == BITS (u32)) { if (is_net_byte_order) { v0 = clib_host_to_net_u32 (v0); v1 = clib_host_to_net_u32 (v1); } clib_mem_unaligned (a0, u32) = v0; clib_mem_unaligned (a1, u32) = v1; } else if (n_bits == BITS (u64)) { if (is_net_byte_order) { v0 = clib_host_to_net_u64 (v0); v1 = clib_host_to_net_u64 (v1); } clib_mem_unaligned (a0, u64) = v0; clib_mem_unaligned (a1, u64) = v1; } } static_always_inline void do_set_fixed (pg_main_t * pg, pg_stream_t * s, u32 * buffers, u32 n_buffers, u32 n_bits, u32 byte_offset, u32 is_net_byte_order, u64 v_min, u64 v_max) { vlib_main_t *vm = vlib_get_main (); while (n_buffers >= 4) { vlib_buffer_t *b0, *b1, *b2, *b3; void *a0, *a1; b0 = vlib_get_buffer (vm, buffers[0]); b1 = vlib_get_buffer (vm, buffers[1]); b2 = vlib_get_buffer (vm, buffers[2]); b3 = vlib_get_buffer (vm, buffers[3]); buffers += 2; n_buffers -= 2; a0 = (void *) b0 + byte_offset; a1 = (void *) b1 + byte_offset; CLIB_PREFETCH ((void *) b2 + byte_offset, sizeof (v_min), WRITE); CLIB_PREFETCH ((void *) b3 + byte_offset, sizeof (v_min), WRITE); set_2 (a0, a1, v_min, v_min, v_min, v_max, n_bits, is_net_byte_order, /* is_increment */ 0); ASSERT (validate_buffer_data (b0, s)); ASSERT (validate_buffer_data (b1, s)); } while (n_buffers > 0) { vlib_buffer_t *b0; void *a0; b0 = vlib_get_buffer (vm, buffers[0]); buffers += 1; n_buffers -= 1; a0 = (void *) b0 + byte_offset; set_1 (a0, v_min, v_min, v_max, n_bits, is_net_byte_order); ASSERT (validate_buffer_data (b0, s)); } } static_always_inline u64 do_set_increment (pg_main_t * pg, pg_stream_t * s, u32 * buffers, u32 n_buffers, u32 n_bits, u32 byte_offset, u32 is_net_byte_order, u32 want_sum, u64 * sum_result, u64 v_min, u64 v_max, u64 v) { vlib_main_t *vm = vlib_get_main (); u64 sum = 0; ASSERT (v >= v_min && v <= v_max); while (n_buffers >= 4) { vlib_buffer_t *b0, *b1, *b2, *b3; void *a0, *a1; u64 v_old; b0 = vlib_get_buffer (vm, buffers[0]); b1 = vlib_get_buffer (vm, buffers[1]); b2 = vlib_get_buffer (vm, buffers[2]); b3 = vlib_get_buffer (vm, buffers[3]); buffers += 2; n_buffers -= 2; a0 = (void *) b0 + byte_offset; a1 = (void *) b1 + byte_offset; CLIB_PREFETCH ((void *) b2 + byte_offset, sizeof (v_min), WRITE); CLIB_PREFETCH ((void *) b3 + byte_offset, sizeof (v_min), WRITE); v_old = v; v = v_old + 2; v = v > v_max ? v_min : v; set_2 (a0, a1, v_old + 0, v_old + 1, v_min, v_max, n_bits, is_net_byte_order, /* is_increment */ 1); if (want_sum) sum += 2 * v_old + 1; if (PREDICT_FALSE (v_old + 1 > v_max)) { if (want_sum) sum -= 2 * v_old + 1; v = v_old; set_1 (a0, v + 0, v_min, v_max, n_bits, is_net_byte_order); if (want_sum) sum += v; v += 1; v = v > v_max ? v_min : v; set_1 (a1, v + 0, v_min, v_max, n_bits, is_net_byte_order); if (want_sum) sum += v; v += 1; } ASSERT (validate_buffer_data (b0, s)); ASSERT (validate_buffer_data (b1, s)); } while (n_buffers > 0) { vlib_buffer_t *b0; void *a0; u64 v_old; b0 = vlib_get_buffer (vm, buffers[0]); buffers += 1; n_buffers -= 1; a0 = (void *) b0 + byte_offset; v_old = v; if (want_sum) sum += v_old; v += 1; v = v > v_max ? v_min : v; ASSERT (v_old >= v_min && v_old <= v_max); set_1 (a0, v_old, v_min, v_max, n_bits, is_net_byte_order); ASSERT (validate_buffer_data (b0, s)); } if (want_sum) *sum_result = sum; return v; } static_always_inline void do_set_random (pg_main_t * pg, pg_stream_t * s, u32 * buffers, u32 n_buffers, u32 n_bits, u32 byte_offset, u32 is_net_byte_order, u32 want_sum, u64 * sum_result, u64 v_min, u64 v_max) { vlib_main_t *vm = vlib_get_main (); u64 v_diff = v_max - v_min + 1; u64 r_mask = max_pow2 (v_diff) - 1; u64 v0, v1; u64 sum = 0; void *random_data; random_data = clib_random_buffer_get_data (&vm->random_buffer, n_buffers * n_bits / BITS (u8)); v0 = v1 = v_min; while (n_buffers >= 4) { vlib_buffer_t *b0, *b1, *b2, *b3; void *a0, *a1; u64 r0 = 0, r1 = 0; /* warnings be gone */ b0 = vlib_get_buffer (vm, buffers[0]); b1 = vlib_get_buffer (vm, buffers[1]); b2 = vlib_get_buffer (vm, buffers[2]); b3 = vlib_get_buffer (vm, buffers[3]); buffers += 2; n_buffers -= 2; a0 = (void *) b0 + byte_offset; a1 = (void *) b1 + byte_offset; CLIB_PREFETCH ((void *) b2 + byte_offset, sizeof (v_min), WRITE); CLIB_PREFETCH ((void *) b3 + byte_offset, sizeof (v_min), WRITE); switch (n_bits) { #define _(n) \ case BITS (u##n): \ { \ u##n * r = random_data; \ r0 = r[0]; \ r1 = r[1]; \ random_data = r + 2; \ } \ break; _(8); _(16); _(32); _(64); #undef _ } /* Add power of 2 sized random number which may be out of range. */ v0 += r0 & r_mask; v1 += r1 & r_mask; /* Twice should be enough to reduce to v_min .. v_max range. */ v0 = v0 > v_max ? v0 - v_diff : v0; v1 = v1 > v_max ? v1 - v_diff : v1; v0 = v0 > v_max ? v0 - v_diff : v0; v1 = v1 > v_max ? v1 - v_diff : v1; if (want_sum) sum += v0 + v1; set_2 (a0, a1, v0, v1, v_min, v_max, n_bits, is_net_byte_order, /* is_increment */ 0); ASSERT (validate_buffer_data (b0, s)); ASSERT (validate_buffer_data (b1, s)); } while (n_buffers > 0) { vlib_buffer_t *b0; void *a0; u64 r0 = 0; /* warnings be gone */ b0 = vlib_get_buffer (vm, buffers[0]); buffers += 1; n_buffers -= 1; a0 = (void *) b0 + byte_offset; switch (n_bits) { #define _(n) \ case BITS (u##n): \ { \ u##n * r = random_data; \ r0 = r[0]; \ random_data = r + 1; \ } \ break; _(8); _(16); _(32); _(64); #undef _ } /* Add power of 2 sized random number which may be out of range. */ v0 += r0 & r_mask; /* Twice should be enough to reduce to v_min .. v_max range. */ v0 = v0 > v_max ? v0 - v_diff : v0; v0 = v0 > v_max ? v0 - v_diff : v0; if (want_sum) sum += v0; set_1 (a0, v0, v_min, v_max, n_bits, is_net_byte_order); ASSERT (validate_buffer_data (b0, s)); } if (want_sum) *sum_result = sum; } #define _(i,t) \ clib_mem_unaligned (a##i, t) = \ clib_host_to_net_##t ((clib_net_to_host_mem_##t (a##i) &~ mask) \ | (v##i << shift)) always_inline void setbits_1 (void *a0, u64 v0, u64 v_min, u64 v_max, u32 max_bits, u32 n_bits, u64 mask, u32 shift) { ASSERT (v0 >= v_min && v0 <= v_max); if (max_bits == BITS (u8)) ((u8 *) a0)[0] = (((u8 *) a0)[0] & ~mask) | (v0 << shift); else if (max_bits == BITS (u16)) { _(0, u16); } else if (max_bits == BITS (u32)) { _(0, u32); } else if (max_bits == BITS (u64)) { _(0, u64); } } always_inline void setbits_2 (void *a0, void *a1, u64 v0, u64 v1, u64 v_min, u64 v_max, u32 max_bits, u32 n_bits, u64 mask, u32 shift, u32 is_increment) { ASSERT (v0 >= v_min && v0 <= v_max); ASSERT (v1 >= v_min && v1 <= v_max + is_increment); if (max_bits == BITS (u8)) { ((u8 *) a0)[0] = (((u8 *) a0)[0] & ~mask) | (v0 << shift); ((u8 *) a1)[0] = (((u8 *) a1)[0] & ~mask) | (v1 << shift); } else if (max_bits == BITS (u16)) { _(0, u16); _(1, u16); } else if (max_bits == BITS (u32)) { _(0, u32); _(1, u32); } else if (max_bits == BITS (u64)) { _(0, u64); _(1, u64); } } #undef _ static_always_inline void do_setbits_fixed (pg_main_t * pg, pg_stream_t * s, u32 * buffers, u32 n_buffers, u32 max_bits, u32 n_bits, u32 byte_offset, u64 v_min, u64 v_max, u64 mask, u32 shift) { vlib_main_t *vm = vlib_get_main (); while (n_buffers >= 4) { vlib_buffer_t *b0, *b1, *b2, *b3; void *a0, *a1; b0 = vlib_get_buffer (vm, buffers[0]); b1 = vlib_get_buffer (vm, buffers[1]); b2 = vlib_get_buffer (vm, buffers[2]); b3 = vlib_get_buffer (vm, buffers[3]); buffers += 2; n_buffers -= 2; a0 = (void *) b0 + byte_offset; a1 = (void *) b1 + byte_offset; CLIB_PREFETCH ((void *) b2 + byte_offset, sizeof (v_min), WRITE); CLIB_PREFETCH ((void *) b3 + byte_offset, sizeof (v_min), WRITE); setbits_2 (a0, a1, v_min, v_min, v_min, v_max, max_bits, n_bits, mask, shift, /* is_increment */ 0); ASSERT (validate_buffer_data (b0, s)); ASSERT (validate_buffer_data (b1, s)); } while (n_buffers > 0) { vlib_buffer_t *b0; void *a0; b0 = vlib_get_buffer (vm, buffers[0]); buffers += 1; n_buffers -= 1; a0 = (void *) b0 + byte_offset; setbits_1 (a0, v_min, v_min, v_max, max_bits, n_bits, mask, shift); ASSERT (validate_buffer_data (b0, s)); } } static_always_inline u64 do_setbits_increment (pg_main_t * pg, pg_stream_t * s, u32 * buffers, u32 n_buffers, u32 max_bits, u32 n_bits, u32 byte_offset, u64 v_min, u64 v_max, u64 v, u64 mask, u32 shift) { vlib_main_t *vm = vlib_get_main (); ASSERT (v >= v_min && v <= v_max); while (n_buffers >= 4) { vlib_buffer_t *b0, *b1, *b2, *b3; void *a0, *a1; u64 v_old; b0 = vlib_get_buffer (vm, buffers[0]); b1 = vlib_get_buffer (vm, buffers[1]); b2 = vlib_get_buffer (vm, buffers[2]); b3 = vlib_get_buffer (vm, buffers[3]); buffers += 2; n_buffers -= 2; a0 = (void *) b0 + byte_offset; a1 = (void *) b1 + byte_offset; CLIB_PREFETCH ((void *) b2 + byte_offset, sizeof (v_min), WRITE); CLIB_PREFETCH ((void *) b3 + byte_offset, sizeof (v_min), WRITE); v_old = v; v = v_old + 2; v = v > v_max ? v_min : v; setbits_2 (a0, a1, v_old + 0, v_old + 1, v_min, v_max, max_bits, n_bits, mask, shift, /* is_increment */ 1); if (PREDICT_FALSE (v_old + 1 > v_max)) { v = v_old; setbits_1 (a0, v + 0, v_min, v_max, max_bits, n_bits, mask, shift); v += 1; v = v > v_max ? v_min : v; setbits_1 (a1, v + 0, v_min, v_max, max_bits, n_bits, mask, shift); v += 1; } ASSERT (validate_buffer_data (b0, s)); ASSERT (validate_buffer_data (b1, s)); } while (n_buffers > 0) { vlib_buffer_t *b0; void *a0; u64 v_old; b0 = vlib_get_buffer (vm, buffers[0]); buffers += 1; n_buffers -= 1; a0 = (void *) b0 + byte_offset; v_old = v; v = v_old + 1; v = v > v_max ? v_min : v; ASSERT (v_old >= v_min && v_old <= v_max); setbits_1 (a0, v_old, v_min, v_max, max_bits, n_bits, mask, shift); ASSERT (validate_buffer_data (b0, s)); } return v; } static_always_inline void do_setbits_random (pg_main_t * pg, pg_stream_t * s, u32 * buffers, u32 n_buffers, u32 max_bits, u32 n_bits, u32 byte_offset, u64 v_min, u64 v_max, u64 mask, u32 shift) { vlib_main_t *vm = vlib_get_main (); u64 v_diff = v_max - v_min + 1; u64 r_mask = max_pow2 (v_diff) - 1; u64 v0, v1; void *random_data; random_data = clib_random_buffer_get_data (&vm->random_buffer, n_buffers * max_bits / BITS (u8)); v0 = v1 = v_min; while (n_buffers >= 4) { vlib_buffer_t *b0, *b1, *b2, *b3; void *a0, *a1; u64 r0 = 0, r1 = 0; /* warnings be gone */ b0 = vlib_get_buffer (vm, buffers[0]); b1 = vlib_get_buffer (vm, buffers[1]); b2 = vlib_get_buffer (vm, buffers[2]); b3 = vlib_get_buffer (vm, buffers[3]); buffers += 2; n_buffers -= 2; a0 = (void *) b0 + byte_offset; a1 = (void *) b1 + byte_offset; CLIB_PREFETCH ((void *) b2 + byte_offset, sizeof (v_min), WRITE); CLIB_PREFETCH ((void *) b3 + byte_offset, sizeof (v_min), WRITE); switch (max_bits) { #define _(n) \ case BITS (u##n): \ { \ u##n * r = random_data; \ r0 = r[0]; \ r1 = r[1]; \ random_data = r + 2; \ } \ break; _(8); _(16); _(32); _(64); #undef _ } /* Add power of 2 sized random number which may be out of range. */ v0 += r0 & r_mask; v1 += r1 & r_mask; /* Twice should be enough to reduce to v_min .. v_max range. */ v0 = v0 > v_max ? v0 - v_diff : v0; v1 = v1 > v_max ? v1 - v_diff : v1; v0 = v0 > v_max ? v0 - v_diff : v0; v1 = v1 > v_max ? v1 - v_diff : v1; setbits_2 (a0, a1, v0, v1, v_min, v_max, max_bits, n_bits, mask, shift, /* is_increment */ 0); ASSERT (validate_buffer_data (b0, s)); ASSERT (validate_buffer_data (b1, s)); } while (n_buffers > 0) { vlib_buffer_t *b0; void *a0; u64 r0 = 0; /* warnings be gone */ b0 = vlib_get_buffer (vm, buffers[0]); buffers += 1; n_buffers -= 1; a0 = (void *) b0 + byte_offset; switch (max_bits) { #define _(n) \ case BITS (u##n): \ { \ u##n * r = random_data; \ r0 = r[0]; \ random_data = r + 1; \ } \ break; _(8); _(16); _(32); _(64); #undef _ } /* Add power of 2 sized random number which may be out of range. */ v0 += r0 & r_mask; /* Twice should be enough to reduce to v_min .. v_max range. */ v0 = v0 > v_max ? v0 - v_diff : v0; v0 = v0 > v_max ? v0 - v_diff : v0; setbits_1 (a0, v0, v_min, v_max, max_bits, n_bits, mask, shift); ASSERT (validate_buffer_data (b0, s)); } } static u64 do_it (pg_main_t * pg, pg_stream_t * s, u32 * buffers, u32 n_buffers, u32 lo_bit, u32 hi_bit, u64 v_min, u64 v_max, u64 v, pg_edit_type_t edit_type) { u32 max_bits, l0, l1, h1, start_bit; if (v_min == v_max) edit_type = PG_EDIT_FIXED; l0 = lo_bit / BITS (u8); l1 = lo_bit % BITS (u8); h1 = hi_bit % BITS (u8); start_bit = l0 * BITS (u8); max_bits = hi_bit - start_bit; ASSERT (max_bits <= 64); #define _(n) \ case (n): \ if (edit_type == PG_EDIT_INCREMENT) \ v = do_set_increment (pg, s, buffers, n_buffers, \ BITS (u##n), \ l0, \ /* is_net_byte_order */ 1, \ /* want sum */ 0, 0, \ v_min, v_max, \ v); \ else if (edit_type == PG_EDIT_RANDOM) \ do_set_random (pg, s, buffers, n_buffers, \ BITS (u##n), \ l0, \ /* is_net_byte_order */ 1, \ /* want sum */ 0, 0, \ v_min, v_max); \ else /* edit_type == PG_EDIT_FIXED */ \ do_set_fixed (pg, s, buffers, n_buffers, \ BITS (u##n), \ l0, \ /* is_net_byte_order */ 1, \ v_min, v_max); \ goto done; if (l1 == 0 && h1 == 0) { switch (max_bits) { _(8); _(16); _(32); _(64); } } #undef _ { u64 mask; u32 shift = l1; u32 n_bits = max_bits; max_bits = clib_max (max_pow2 (n_bits), 8); mask = ((u64) 1 << (u64) n_bits) - 1; mask &= ~(((u64) 1 << (u64) shift) - 1); mask <<= max_bits - n_bits; shift += max_bits - n_bits; switch (max_bits) { #define _(n) \ case (n): \ if (edit_type == PG_EDIT_INCREMENT) \ v = do_setbits_increment (pg, s, buffers, n_buffers, \ BITS (u##n), n_bits, \ l0, v_min, v_max, v, \ mask, shift); \ else if (edit_type == PG_EDIT_RANDOM) \ do_setbits_random (pg, s, buffers, n_buffers, \ BITS (u##n), n_bits, \ l0, v_min, v_max, \ mask, shift); \ else /* edit_type == PG_EDIT_FIXED */ \ do_setbits_fixed (pg, s, buffers, n_buffers, \ BITS (u##n), n_bits, \ l0, v_min, v_max, \ mask, shift); \ goto done; _(8); _(16); _(32); _(64); #undef _ } } done: return v; } static void pg_generate_set_lengths (pg_main_t * pg, pg_stream_t * s, u32 * buffers, u32 n_buffers) { u64 v_min, v_max, length_sum; pg_edit_type_t edit_type; v_min = s->min_packet_bytes; v_max = s->max_packet_bytes; edit_type = s->packet_size_edit_type; if (edit_type == PG_EDIT_INCREMENT) s->last_increment_packet_size = do_set_increment (pg, s, buffers, n_buffers, 8 * STRUCT_SIZE_OF (vlib_buffer_t, current_length), STRUCT_OFFSET_OF (vlib_buffer_t, current_length), /* is_net_byte_order */ 0, /* want sum */ 1, &length_sum, v_min, v_max, s->last_increment_packet_size); else if (edit_type == PG_EDIT_RANDOM) do_set_random (pg, s, buffers, n_buffers, 8 * STRUCT_SIZE_OF (vlib_buffer_t, current_length), STRUCT_OFFSET_OF (vlib_buffer_t, current_length), /* is_net_byte_order */ 0, /* want sum */ 1, &length_sum, v_min, v_max); else /* edit_type == PG_EDIT_FIXED */ { do_set_fixed (pg, s, buffers, n_buffers, 8 * STRUCT_SIZE_OF (vlib_buffer_t, current_length), STRUCT_OFFSET_OF (vlib_buffer_t, current_length), /* is_net_byte_order */ 0, v_min, v_max); length_sum = v_min * n_buffers; } { vnet_main_t *vnm = vnet_get_main (); vnet_interface_main_t *im = &vnm->interface_main; vnet_sw_interface_t *si = vnet_get_sw_interface (vnm, s->sw_if_index[VLIB_RX]); vlib_increment_combined_counter (im->combined_sw_if_counters + VNET_INTERFACE_COUNTER_RX, vlib_get_thread_index (), si->sw_if_index, n_buffers, length_sum); } } static void pg_generate_fix_multi_buffer_lengths (pg_main_t * pg, pg_stream_t * s, u32 * buffers, u32 n_buffers) { vlib_main_t *vm = vlib_get_main (); pg_buffer_index_t *pbi; uword n_bytes_left; static u32 *unused_buffers = 0; while (n_buffers > 0) { vlib_buffer_t *b; u32 bi; bi = buffers[0]; b = vlib_get_buffer (vm, bi); /* Current length here is length of whole packet. */ n_bytes_left = b->current_length; pbi = s->buffer_indices; while (1) { uword n = clib_min (n_bytes_left, s->buffer_bytes); b->current_length = n; n_bytes_left -= n; if (n_bytes_left > 0) b->flags |= VLIB_BUFFER_NEXT_PRESENT; else b->flags &= ~VLIB_BUFFER_NEXT_PRESENT; /* Return unused buffers to fifos. */ if (n == 0) vec_add1 (unused_buffers, bi); pbi++; if (pbi >= vec_end (s->buffer_indices)) break; bi = b->next_buffer; b = vlib_get_buffer (vm, bi); } ASSERT (n_bytes_left == 0); buffers += 1; n_buffers -= 1; } if (vec_len (unused_buffers) > 0) { vlib_buffer_free_no_next (vm, unused_buffers, vec_len (unused_buffers)); _vec_len (unused_buffers) = 0; } } static void pg_generate_edit (pg_main_t * pg, pg_stream_t * s, u32 * buffers, u32 n_buffers) { pg_edit_t *e; vec_foreach (e, s->non_fixed_edits) { switch (e->type) { case PG_EDIT_RANDOM: case PG_EDIT_INCREMENT: { u32 lo_bit, hi_bit; u64 v_min, v_max; v_min = pg_edit_get_value (e, PG_EDIT_LO); v_max = pg_edit_get_value (e, PG_EDIT_HI); hi_bit = (BITS (u8) * STRUCT_OFFSET_OF (vlib_buffer_t, data) + BITS (u8) + e->lsb_bit_offset); lo_bit = hi_bit - e->n_bits; e->last_increment_value = do_it (pg, s, buffers, n_buffers, lo_bit, hi_bit, v_min, v_max, e->last_increment_value, e->type); } break; case PG_EDIT_UNSPECIFIED: break; default: /* Should not be any fixed edits left. */ ASSERT (0); break; } } /* Call any edit functions to e.g. completely IP lengths, checksums, ... */ { int i; for (i = vec_len (s->edit_groups) - 1; i >= 0; i--) { pg_edit_group_t *g = s->edit_groups + i; if (g->edit_function) g->edit_function (pg, s, g, buffers, n_buffers); } } } static void pg_set_next_buffer_pointers (pg_main_t * pg, pg_stream_t * s, u32 * buffers, u32 * next_buffers, u32 n_buffers) { vlib_main_t *vm = vlib_get_main (); while (n_buffers >= 4) { u32 ni0, ni1; vlib_buffer_t *b0, *b1; b0 = vlib_get_buffer (vm, buffers[0]); b1 = vlib_get_buffer (vm, buffers[1]); ni0 = next_buffers[0]; ni1 = next_buffers[1]; vlib_prefetch_buffer_with_index (vm, buffers[2], WRITE); vlib_prefetch_buffer_with_index (vm, buffers[3], WRITE); b0->flags |= VLIB_BUFFER_NEXT_PRESENT; b1->flags |= VLIB_BUFFER_NEXT_PRESENT; b0->next_buffer = ni0; b1->next_buffer = ni1; buffers += 2; next_buffers += 2; n_buffers -= 2; } while (n_buffers > 0) { u32 ni0; vlib_buffer_t *b0; b0 = vlib_get_buffer (vm, buffers[0]); ni0 = next_buffers[0]; buffers += 1; next_buffers += 1; n_buffers -= 1; b0->flags |= VLIB_BUFFER_NEXT_PRESENT; b0->next_buffer = ni0; } } static_always_inline void init_replay_buffers_inline (vlib_main_t * vm, pg_stream_t * s, u32 * buffers, u32 n_buffers, u32 data_offset, u32 n_data) { u32 n_left, *b, i, l; n_left = n_buffers; b = buffers; i = s->current_replay_packet_index; l = vec_len (s->replay_packet_templates); while (n_left >= 1) { u32 bi0, n0; vlib_buffer_t *b0; u8 *d0; bi0 = b[0]; b += 1; n_left -= 1; b0 = vlib_get_buffer (vm, bi0); vnet_buffer (b0)->sw_if_index[VLIB_RX] = s->sw_if_index[VLIB_RX]; /* was s->sw_if_index[VLIB_TX]; */ vnet_buffer (b0)->sw_if_index[VLIB_TX] = (u32) ~ 0; d0 = vec_elt (s->replay_packet_templates, i); vnet_buffer2 (b0)->pg_replay_timestamp = s->replay_packet_timestamps[i]; n0 = n_data; if (data_offset + n_data >= vec_len (d0)) n0 = vec_len (d0) > data_offset ? vec_len (d0) - data_offset : 0; b0->current_length = n0; clib_memcpy_fast (b0->data, d0 + data_offset, n0); i = i + 1 == l ? 0 : i + 1; } } static_always_inline void init_buffers_inline (vlib_main_t * vm, pg_stream_t * s, u32 * buffers, u32 n_buffers, u32 data_offset, u32 n_data, u32 set_data) { u32 n_left, *b; u8 *data, *mask; if (vec_len (s->replay_packet_templates) > 0) return init_replay_buffers_inline (vm, s, buffers, n_buffers, data_offset, n_data); data = s->fixed_packet_data + data_offset; mask = s->fixed_packet_data_mask + data_offset; if (data + n_data >= vec_end (s->fixed_packet_data)) n_data = (data < vec_end (s->fixed_packet_data) ? vec_end (s->fixed_packet_data) - data : 0); if (n_data > 0) { ASSERT (data + n_data <= vec_end (s->fixed_packet_data)); ASSERT (mask + n_data <= vec_end (s->fixed_packet_data_mask)); } n_left = n_buffers; b = buffers; while (n_left >= 4) { u32 bi0, bi1; vlib_buffer_t *b0, *b1; /* Prefetch next iteration. */ vlib_prefetch_buffer_with_index (vm, b[2], STORE); vlib_prefetch_buffer_with_index (vm, b[3], STORE); bi0 = b[0]; bi1 = b[1]; b += 2; n_left -= 2; b0 = vlib_get_buffer (vm, bi0); b1 = vlib_get_buffer (vm, bi1); vnet_buffer (b0)->sw_if_index[VLIB_RX] = vnet_buffer (b1)->sw_if_index[VLIB_RX] = s->sw_if_index[VLIB_RX]; vnet_buffer (b0)->sw_if_index[VLIB_TX] = vnet_buffer (b1)->sw_if_index[VLIB_TX] = (u32) ~ 0; if (set_data) { clib_memcpy_fast (b0->data, data, n_data); clib_memcpy_fast (b1->data, data, n_data); } else { ASSERT (validate_buffer_data2 (b0, s, data_offset, n_data)); ASSERT (validate_buffer_data2 (b1, s, data_offset, n_data)); } } while (n_left >= 1) { u32 bi0; vlib_buffer_t *b0; bi0 = b[0]; b += 1; n_left -= 1; b0 = vlib_get_buffer (vm, bi0); vnet_buffer (b0)->sw_if_index[VLIB_RX] = s->sw_if_index[VLIB_RX]; /* s->sw_if_index[VLIB_TX]; */ vnet_buffer (b0)->sw_if_index[VLIB_TX] = (u32) ~ 0; if (set_data) clib_memcpy_fast (b0->data, data, n_data); else ASSERT (validate_buffer_data2 (b0, s, data_offset, n_data)); } } static u32 pg_stream_fill_helper (pg_main_t * pg, pg_stream_t * s, pg_buffer_index_t * bi, u32 * buffers, u32 * next_buffers, u32 n_alloc) { vlib_main_t *vm = vlib_get_main (); uword is_start_of_packet = bi == s->buffer_indices; u32 n_allocated; n_allocated = vlib_buffer_alloc_from_free_list (vm, buffers, n_alloc, bi->free_list_index); if (n_allocated == 0) return 0; /* * We can't assume we got all the buffers we asked for... * This never worked until recently. */ n_alloc = n_allocated; /* Reinitialize buffers */ init_buffers_inline (vm, s, buffers, n_alloc, (bi - s->buffer_indices) * s->buffer_bytes /* data offset */ , s->buffer_bytes, /* set_data */ 1); if (next_buffers) pg_set_next_buffer_pointers (pg, s, buffers, next_buffers, n_alloc); if (is_start_of_packet) { if (vec_len (s->replay_packet_templates) > 0) { vnet_main_t *vnm = vnet_get_main (); vnet_interface_main_t *im = &vnm->interface_main; vnet_sw_interface_t *si = vnet_get_sw_interface (vnm, s->sw_if_index[VLIB_RX]); u32 l = 0; u32 i; for (i = 0; i < n_alloc; i++) l += vlib_buffer_index_length_in_chain (vm, buffers[i]); vlib_increment_combined_counter (im->combined_sw_if_counters + VNET_INTERFACE_COUNTER_RX, vlib_get_thread_index (), si->sw_if_index, n_alloc, l); s->current_replay_packet_index += n_alloc; s->current_replay_packet_index %= vec_len (s->replay_packet_templates); } else { pg_generate_set_lengths (pg, s, buffers, n_alloc); if (vec_len (s->buffer_indices) > 1) pg_generate_fix_multi_buffer_lengths (pg, s, buffers, n_alloc); pg_generate_edit (pg, s, buffers, n_alloc); } } return n_alloc; } static u32 pg_stream_fill (pg_main_t * pg, pg_stream_t * s, u32 n_buffers) { pg_buffer_index_t *bi; word i, n_in_fifo, n_alloc, n_free, n_added; u32 *tail, *start, *end, *last_tail, *last_start; bi = s->buffer_indices; n_in_fifo = clib_fifo_elts (bi->buffer_fifo); if (n_in_fifo >= n_buffers) return n_in_fifo; n_alloc = n_buffers - n_in_fifo; /* Round up, but never generate more than limit. */ n_alloc = clib_max (VLIB_FRAME_SIZE, n_alloc); if (s->n_packets_limit > 0 && s->n_packets_generated + n_in_fifo + n_alloc >= s->n_packets_limit) { n_alloc = s->n_packets_limit - s->n_packets_generated - n_in_fifo; if (n_alloc < 0) n_alloc = 0; } /* All buffer fifos should have the same size. */ if (CLIB_DEBUG > 0) { uword l = ~0, e; vec_foreach (bi, s->buffer_indices) { e = clib_fifo_elts (bi->buffer_fifo); if (bi == s->buffer_indices) l = e; ASSERT (l == e); } } last_tail = last_start = 0; n_added = n_alloc; for (i = vec_len (s->buffer_indices) - 1; i >= 0; i--) { bi = vec_elt_at_index (s->buffer_indices, i); n_free = clib_fifo_free_elts (bi->buffer_fifo); if (n_free < n_alloc) clib_fifo_resize (bi->buffer_fifo, n_alloc - n_free); tail = clib_fifo_advance_tail (bi->buffer_fifo, n_alloc); start = bi->buffer_fifo; end = clib_fifo_end (bi->buffer_fifo); if (tail + n_alloc <= end) { n_added = pg_stream_fill_helper (pg, s, bi, tail, last_tail, n_alloc); } else { u32 n = clib_min (end - tail, n_alloc); n_added = pg_stream_fill_helper (pg, s, bi, tail, last_tail, n); if (n_added == n && n_alloc > n_added) { n_added += pg_stream_fill_helper (pg, s, bi, start, last_start, n_alloc - n_added); } } if (PREDICT_FALSE (n_added < n_alloc)) tail = clib_fifo_advance_tail (bi->buffer_fifo, n_added - n_alloc); last_tail = tail; last_start = start; /* Verify that pkts in the fifo are properly allocated */ } return n_in_fifo + n_added; } typedef struct { u32 stream_index; u32 packet_length; u32 sw_if_index; /* Use pre data for packet data. */ vlib_buffer_t buffer; } pg_input_trace_t; static u8 * format_pg_input_trace (u8 * s, va_list * va) { vlib_main_t *vm = va_arg (*va, vlib_main_t *); CLIB_UNUSED (vlib_node_t * node) = va_arg (*va, vlib_node_t *); pg_input_trace_t *t = va_arg (*va, pg_input_trace_t *); pg_main_t *pg = &pg_main; pg_stream_t *stream; vlib_node_t *n; u32 indent = format_get_indent (s); stream = 0; if (!pool_is_free_index (pg->streams, t->stream_index)) stream = pool_elt_at_index (pg->streams, t->stream_index); if (stream) s = format (s, "stream %v", pg->streams[t->stream_index].name); else s = format (s, "stream %d", t->stream_index); s = format (s, ", %d bytes", t->packet_length); s = format (s, ", %d sw_if_index", t->sw_if_index); s = format (s, "\n%U%U", format_white_space, indent, format_vnet_buffer, &t->buffer); s = format (s, "\n%U", format_white_space, indent); n = 0; if (stream) n = vlib_get_node (vm, stream->node_index); if (n && n->format_buffer) s = format (s, "%U", n->format_buffer, t->buffer.pre_data, sizeof (t->buffer.pre_data)); else s = format (s, "%U", format_hex_bytes, t->buffer.pre_data, ARRAY_LEN (t->buffer.pre_data)); return s; } static void pg_input_trace (pg_main_t * pg, vlib_node_runtime_t * node, pg_stream_t * s, u32 * buffers, u32 n_buffers) { vlib_main_t *vm = vlib_get_main (); u32 *b, n_left, stream_index, next_index; n_left = n_buffers; b = buffers; stream_index = s - pg->streams; next_index = s->next_index; while (n_left >= 2) { u32 bi0, bi1; vlib_buffer_t *b0, *b1; pg_input_trace_t *t0, *t1; bi0 = b[0]; bi1 = b[1]; b += 2; n_left -= 2; b0 = vlib_get_buffer (vm, bi0); b1 = vlib_get_buffer (vm, bi1); vlib_trace_buffer (vm, node, next_index, b0, /* follow_chain */ 1); vlib_trace_buffer (vm, node, next_index, b1, /* follow_chain */ 1); t0 = vlib_add_trace (vm, node, b0, sizeof (t0[0])); t1 = vlib_add_trace (vm, node, b1, sizeof (t1[0])); t0->stream_index = stream_index; t1->stream_index = stream_index; t0->packet_length = vlib_buffer_length_in_chain (vm, b0); t1->packet_length = vlib_buffer_length_in_chain (vm, b1); t0->sw_if_index = vnet_buffer (b0)->sw_if_index[VLIB_RX]; t1->sw_if_index = vnet_buffer (b1)->sw_if_index[VLIB_RX]; clib_memcpy_fast (&t0->buffer, b0, sizeof (b0[0]) - sizeof (b0->pre_data)); clib_memcpy_fast (&t1->buffer, b1, sizeof (b1[0]) - sizeof (b1->pre_data)); clib_memcpy_fast (t0->buffer.pre_data, b0->data, sizeof (t0->buffer.pre_data)); clib_memcpy_fast (t1->buffer.pre_data, b1->data, sizeof (t1->buffer.pre_data)); } while (n_left >= 1) { u32 bi0; vlib_buffer_t *b0; pg_input_trace_t *t0; bi0 = b[0]; b += 1; n_left -= 1; b0 = vlib_get_buffer (vm, bi0); vlib_trace_buffer (vm, node, next_index, b0, /* follow_chain */ 1); t0 = vlib_add_trace (vm, node, b0, sizeof (t0[0])); t0->stream_index = stream_index; t0->packet_length = vlib_buffer_length_in_chain (vm, b0); t0->sw_if_index = vnet_buffer (b0)->sw_if_index[VLIB_RX]; clib_memcpy_fast (&t0->buffer, b0, sizeof (b0[0]) - sizeof (b0->pre_data)); clib_memcpy_fast (t0->buffer.pre_data, b0->data, sizeof (t0->buffer.pre_data)); } } static uword pg_generate_packets (vlib_node_runtime_t * node, pg_main_t * pg, pg_stream_t * s, uword n_packets_to_generate) { vlib_main_t *vm = vlib_get_main (); u32 *to_next, n_this_frame, n_left, n_trace, n_packets_in_fifo; uword n_packets_generated; pg_buffer_index_t *bi, *bi0; u32 next_index = s->next_index; vnet_feature_main_t *fm = &feature_main; vnet_feature_config_main_t *cm; u8 feature_arc_index = fm->device_input_feature_arc_index; cm = &fm->feature_config_mains[feature_arc_index]; u32 current_config_index = ~(u32) 0; int i; bi0 = s->buffer_indices; n_packets_in_fifo = pg_stream_fill (pg, s, n_packets_to_generate); n_packets_to_generate = clib_min (n_packets_in_fifo, n_packets_to_generate); n_packets_generated = 0; if (PREDICT_FALSE (vnet_have_features (feature_arc_index, s->sw_if_index[VLIB_RX]))) { current_config_index = vec_elt (cm->config_index_by_sw_if_index, s->sw_if_index[VLIB_RX]); vnet_get_config_data (&cm->config_main, &current_config_index, &next_index, 0); } while (n_packets_to_generate > 0) { u32 *head, *start, *end; if (PREDICT_TRUE (next_index == VNET_DEVICE_INPUT_NEXT_ETHERNET_INPUT)) { vlib_next_frame_t *nf; vlib_frame_t *f; ethernet_input_frame_t *ef; pg_interface_t *pi; vlib_get_new_next_frame (vm, node, next_index, to_next, n_left); nf = vlib_node_runtime_get_next_frame (vm, node, next_index); f = vlib_get_frame (vm, nf->frame_index); f->flags = ETH_INPUT_FRAME_F_SINGLE_SW_IF_IDX; ef = vlib_frame_scalar_args (f); pi = pool_elt_at_index (pg->interfaces, s->pg_if_index); ef->sw_if_index = pi->sw_if_index; ef->hw_if_index = pi->hw_if_index; } else vlib_get_next_frame (vm, node, next_index, to_next, n_left); n_this_frame = n_packets_to_generate; if (n_this_frame > n_left) n_this_frame = n_left; start = bi0->buffer_fifo; end = clib_fifo_end (bi0->buffer_fifo); head = clib_fifo_head (bi0->buffer_fifo); if (head + n_this_frame <= end) vlib_copy_buffers (to_next, head, n_this_frame); else { u32 n = end - head; vlib_copy_buffers (to_next + 0, head, n); vlib_copy_buffers (to_next + n, start, n_this_frame - n); } vec_foreach (bi, s->buffer_indices) clib_fifo_advance_head (bi->buffer_fifo, n_this_frame); if (current_config_index != ~(u32) 0) for (i = 0; i < n_this_frame; i++) { vlib_buffer_t *b; b = vlib_get_buffer (vm, to_next[i]); b->current_config_index = current_config_index; vnet_buffer (b)->feature_arc_index = feature_arc_index; } n_trace = vlib_get_trace_count (vm, node); if (n_trace > 0) { u32 n = clib_min (n_trace, n_this_frame); pg_input_trace (pg, node, s, to_next, n); vlib_set_trace_count (vm, node, n_trace - n); } n_packets_to_generate -= n_this_frame; n_packets_generated += n_this_frame; n_left -= n_this_frame; vlib_put_next_frame (vm, node, next_index, n_left); } return n_packets_generated; } static uword pg_input_stream (vlib_node_runtime_t * node, pg_main_t * pg, pg_stream_t * s) { vlib_main_t *vm = vlib_get_main (); uword n_packets; f64 time_now, dt; if (s->n_packets_limit > 0 && s->n_packets_generated >= s->n_packets_limit) { pg_stream_enable_disable (pg, s, /* want_enabled */ 0); return 0; } /* Apply rate limit. */ time_now = vlib_time_now (vm); if (s->time_last_generate == 0) s->time_last_generate = time_now; dt = time_now - s->time_last_generate; s->time_last_generate = time_now; n_packets = VLIB_FRAME_SIZE; if (s->rate_packets_per_second > 0) { s->packet_accumulator += dt * s->rate_packets_per_second; n_packets = s->packet_accumulator; /* Never allow accumulator to grow if we get behind. */ s->packet_accumulator -= n_packets; } /* Apply fixed limit. */ if (s->n_packets_limit > 0 && s->n_packets_generated + n_packets > s->n_packets_limit) n_packets = s->n_packets_limit - s->n_packets_generated; /* Generate up to one frame's worth of packets. */ if (n_packets > VLIB_FRAME_SIZE) n_packets = VLIB_FRAME_SIZE; if (n_packets > 0) n_packets = pg_generate_packets (node, pg, s, n_packets); s->n_packets_generated += n_packets; return n_packets; } uword pg_input (vlib_main_t * vm, vlib_node_runtime_t * node, vlib_frame_t * frame) { uword i; pg_main_t *pg = &pg_main; uword n_packets = 0; u32 worker_index = 0; if (vlib_num_workers ()) worker_index = vlib_get_current_worker_index (); /* *INDENT-OFF* */ clib_bitmap_foreach (i, pg->enabled_streams[worker_index], ({ pg_stream_t *s = vec_elt_at_index (pg->streams, i); n_packets += pg_input_stream (node, pg, s); })); /* *INDENT-ON* */ return n_packets; } /* *INDENT-OFF* */ VLIB_REGISTER_NODE (pg_input_node) = { .function = pg_input, .name = "pg-input", .sibling_of = "device-input", .type = VLIB_NODE_TYPE_INPUT, .format_trace = format_pg_input_trace, /* Input node will be left disabled until a stream is active. */ .state = VLIB_NODE_STATE_DISABLED, }; /* *INDENT-ON* */ /* * fd.io coding-style-patch-verification: ON * * Local Variables: * eval: (c-set-style "gnu") * End: */


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