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path: root/src/vppinfra/pmalloc.c
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2022-06-09vppinfra: missing __clib_export for clib_pmalloc_alloc_alignedDamjan Marion1-2/+2
2021-05-06vppinfra: fix testsDamjan Marion1-2/+2
2021-04-20pmalloc: tolerate move_pages failure on numa node #0Klement Sekera1-1/+2
2021-04-18vppinfra: remove linux/syscall.hDamjan Marion1-43/+27
2020-12-14misc: move to new pool_foreach macrosDamjan Marion1-2/+2
2020-10-17vppinfra: explicitly export symbolsDamjan Marion1-6/+6
2020-09-17stats: configurable page sizeDamjan Marion1-4/+1
2020-09-17vppinfra: support main heap with different page sizesDamjan Marion1-9/+9
2020-09-14vppinfra: add clib_log2_page_sz and format/unformat functionsDamjan Marion1-18/+0
2020-04-21vppinfra: bihash improvementsDave Barach1-23/+6
2019-11-22vppinfra: fix coverity issue 205691 in pmallocAndrew Yourtchenko1-0/+1
2019-11-07pmalloc: always lock pagesDamjan Marion1-25/+11
2019-03-18Fix build with newer linux headersDamjan Marion1-1/+2
2019-02-27VPP-1576: fix Coverity issuesDave Barach1-1/+1
2019-02-26Fix vpp crashing when attempting to run in kubernetes PodArtem Belov1-0/+21
2019-02-21physmem: keep physmem VA in 39-bit address space on x86_64Damjan Marion1-3/+9
2019-01-23pmalloc: don't iterate if there is no enough free spaceDamjan Marion1-0/+3
2018-11-28cmake: display warning and continue if dpdk not presentDamjan Marion1-4/+4
2018-11-27pmalloc: correct format_pmalloc_map u32 index overrun bugKingwel Xie1-4/+3
2018-11-15VPP-1474: fix 2x coverity warningsDave Barach1-1/+1
2018-11-10pmalloc: u32 pp->index leads to va address overrunKingwel Xie1-1/+2
2018-11-08physmem: Add physmem map supportMohsin Kazmi1-0/+21
2018-11-07pmalloc: fix shared mappingsDamjan Marion1-2/+4
2018-10-28physmem: coverity issuesDamjan Marion1-3/+4
2018-10-25pmalloc: don't lock 4K pages if we don't have access to pagemapDamjan Marion1-6/+26
2018-10-25pmalloc: support for 4K pagesDamjan Marion1-56/+180
2018-10-24vppinfra: autodetect default hugepage sizeDamjan Marion1-16/+2
2018-10-23physmem coverity issuesDamjan Marion1-2/+3
2018-10-23Numa-aware, growable physical memory allocator (pmalloc)Damjan Marion1-0/+562
* 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 <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_export 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_export 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) { i64 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_export 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: */