aboutsummaryrefslogtreecommitdiffstats
path: root/src/vnet/policer
AgeCommit message (Expand)AuthorFilesLines
2020-03-12policer: API cleanupJakub Grajciar3-52/+111
2019-12-10api: multiple connections per processDave Barach1-1/+1
2019-03-07policer: migrate old MULTIARCH macros to VLIB_NODE_FNFilip Tehlar1-26/+19
2018-12-20delete policer classify repeat count drop packets when action is DROPcohu1-5/+0
2018-10-23c11 safe string handling supportDave Barach3-9/+9
2018-09-24Trivial: Clean up some typos.Paul Vinciguerra5-8/+8
2018-09-08L2 BVI/FIB: Update L2 FIB table when BVI's MAC changesNeale Ranns1-0/+2
2018-01-23VPPAPIGEN: vppapigen replacement in Python PLY.Ole Troan1-1/+1
2018-01-11api: remove transport specific code from handlersFlorin Coras1-7/+7
2018-01-09api: refactor vlibmemoryFlorin Coras1-2/+2
2017-12-18VPP-269 Coding standards cleanup - vnet/vnet/policerKrishanpal singh1-11/+14
2017-10-24Add extern to *_main global variable declarations in header files.Dave Wallace2-1/+3
2017-10-20null-terminate some formatted stringGabriel Ganne1-0/+2
2017-10-10punt and drop features:Neale Ranns3-62/+94
2017-10-09vppapigen: support per-file (major,minor,patch) version stampsDave Barach1-0/+2
2017-08-22policer: remove unused codeDamjan Marion1-4/+0
2017-08-10Fix memory leaks found in policer code.Chaoyu Jin1-0/+34
2017-07-23Improve L2 Input/Output Feature Infrastructure and UsageJohn Lo1-8/+3
2017-06-03Fix for gcc7Marco Varlese1-1/+1
2017-03-22policer: fix byte ordering in policer_details msgMarek Gradzki1-2/+2
2017-02-22VPP-635: CLI Memory leak with invalid parameterBilly McFall2-8/+24
2017-01-27API refactoring : policerPavel Kotucek2-0/+379
2016-12-28Reorganize source tree to use single autotools instanceDamjan Marion6-0/+3478
o 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 <sys/fcntl.h> #include <vppinfra/pcap.h> /** * @file * @brief PCAP function. * * Usage: * * <code><pre> * \#include <vppinfra/pcap.h> * * static pcap_main_t pcap = { * .file_name = "/tmp/ip4", * .n_packets_to_capture = 2, * .packet_type = PCAP_PACKET_TYPE_ip, * }; * </pre></code> * * To add a buffer: * * <code><pre>pcap_add_buffer (&pcap, vm, pi0, 128);</pre></code> * * File will be written after @c n_packets_to_capture or call to pcap_write (&amp;pcap). * */ /** * @brief Close PCAP file * * @return rc - clib_error_t * */ clib_error_t * pcap_close (pcap_main_t * pm) { close (pm->file_descriptor); pm->flags &= ~PCAP_MAIN_INIT_DONE; pm->file_descriptor = -1; return 0; } /** * @brief Write PCAP file * * @return rc - clib_error_t * */ clib_error_t * pcap_write (pcap_main_t * pm) { clib_error_t *error = 0; if (!(pm->flags & PCAP_MAIN_INIT_DONE)) { pcap_file_header_t fh; int n; if (!pm->file_name) pm->file_name = "/tmp/vnet.pcap"; pm->file_descriptor = open (pm->file_name, O_CREAT | O_TRUNC | O_WRONLY, 0664); if (pm->file_descriptor < 0) { error = clib_error_return_unix (0, "failed to open `%s'", pm->file_name); goto done; } pm->flags |= PCAP_MAIN_INIT_DONE; pm->n_packets_captured = 0; pm->n_pcap_data_written = 0; clib_spinlock_init (&pm->lock); /* Write file header. */ clib_memset (&fh, 0, sizeof (fh)); fh.magic = 0xa1b2c3d4; fh.major_version = 2; fh.minor_version = 4; fh.time_zone = 0; fh.max_packet_size_in_bytes = 1 << 16; fh.packet_type = pm->packet_type; n = write (pm->file_descriptor, &fh, sizeof (fh)); if (n != sizeof (fh)) { if (n < 0) error = clib_error_return_unix (0, "write file header `%s'", pm->file_name); else error = clib_error_return (0, "short write of file header `%s'", pm->file_name); goto done; } } while (vec_len (pm->pcap_data) > pm->n_pcap_data_written) { int n = vec_len (pm->pcap_data) - pm->n_pcap_data_written; n = write (pm->file_descriptor, vec_elt_at_index (pm->pcap_data, pm->n_pcap_data_written), n); if (n < 0 && unix_error_is_fatal (errno)) { error = clib_error_return_unix (0, "write `%s'", pm->file_name); goto done; } pm->n_pcap_data_written += n; } if (pm->n_pcap_data_written >= vec_len (pm->pcap_data)) { vec_reset_length (pm->pcap_data); pm->n_pcap_data_written = 0; } done: if (error) { if (pm->file_descriptor >= 0) close (pm->file_descriptor); } return error; } /** * @brief Read PCAP file * * @return rc - clib_error_t * */ clib_error_t * pcap_read (pcap_main_t * pm) { clib_error_t *error = 0; int fd, need_swap, n; pcap_file_header_t fh; pcap_packet_header_t ph; fd = open (pm->file_name, O_RDONLY); if (fd < 0) { error = clib_error_return_unix (0, "open `%s'", pm->file_name); goto done; } if (read (fd, &fh, sizeof (fh)) != sizeof (fh)) { error = clib_error_return_unix (0, "read file header `%s'", pm->file_name); goto done; } need_swap = 0; if (fh.magic == 0xd4c3b2a1) { need_swap = 1; #define _(t,f) fh.f = clib_byte_swap_##t (fh.f); foreach_pcap_file_header; #undef _ } if (fh.magic != 0xa1b2c3d4) { error = clib_error_return (0, "bad magic `%s'", pm->file_name); goto done; } pm->min_packet_bytes = 0; pm->max_packet_bytes = 0; while ((n = read (fd, &ph, sizeof (ph))) != 0) { u8 *data; u64 timestamp; u32 timestamp_sec; u32 timestamp_usec; if (need_swap) { #define _(t,f) ph.f = clib_byte_swap_##t (ph.f); foreach_pcap_packet_header; #undef _ } data = vec_new (u8, ph.n_bytes_in_packet); if (read (fd, data, ph.n_packet_bytes_stored_in_file) != ph.n_packet_bytes_stored_in_file) { error = clib_error_return (0, "short read `%s'", pm->file_name); goto done; } if (vec_len (pm->packets_read) == 0) pm->min_packet_bytes = pm->max_packet_bytes = ph.n_bytes_in_packet; else { pm->min_packet_bytes = clib_min (pm->min_packet_bytes, ph.n_bytes_in_packet); pm->max_packet_bytes = clib_max (pm->max_packet_bytes, ph.n_bytes_in_packet); } timestamp_sec = ph.time_in_sec; timestamp_usec = ph.time_in_usec; timestamp = ((u64) timestamp_sec) * 1000000 + (u64) timestamp_usec; vec_add1 (pm->packets_read, data); vec_add1 (pm->timestamps, timestamp); } done: if (fd >= 0) close (fd); return error; } /* * fd.io coding-style-patch-verification: ON * * Local Variables: * eval: (c-set-style "gnu") * End: */