csit - Integration tests

Age	Commit message (Expand)	Author	Files	Lines
2019-07-02	Replace license checker with global notices	Vratko Polak	1	-0/+25

/* * Copyright (c) 2018 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. */ /** * @file * @brief MPCAP utility definitions */ #ifndef included_vnet_mpcap_h #define included_vnet_mpcap_h #include <vlib/vlib.h> #include <sys/types.h> #include <sys/stat.h> #include <unistd.h> #include <vppinfra/time_range.h> /** * @brief Packet types supported by MPCAP * * null 0 * ethernet 1 * ppp 9 * ip 12 * hdlc 104 */ #define foreach_vnet_mpcap_packet_type \ _ (null, 0) \ _ (ethernet, 1) \ _ (ppp, 9) \ _ (ip, 12) \ _ (hdlc, 104) typedef enum { #define _(f,n) MPCAP_PACKET_TYPE_##f = (n), foreach_vnet_mpcap_packet_type #undef _ } mpcap_packet_type_t; #define foreach_mpcap_file_header \ /** 0xa1b2c3d4 host byte order. \ 0xd4c3b2a1 => need to byte swap everything. */ \ _ (u32, magic) \ \ /** Currently major 2 minor 4. */ \ _ (u16, major_version) \ _ (u16, minor_version) \ \ /** 0 for GMT. */ \ _ (u32, time_zone) \ \ /** Accuracy of timestamps. Typically set to 0. */ \ _ (u32, sigfigs) \ \ /** Size of largest packet in file. */ \ _ (u32, max_packet_size_in_bytes) \ \ /** One of vnet_mpcap_packet_type_t. */ \ _ (u32, packet_type) /** File header struct */ typedef struct { #define _(t, f) t f; foreach_mpcap_file_header #undef _ } mpcap_file_header_t; #define foreach_mpcap_packet_header \ /** Time stamp in seconds */ \ _ (u32, time_in_sec) \ /** Time stamp in microseconds. */ \ _ (u32, time_in_usec) \ \ /** Number of bytes stored in file. */ \ _ (u32, n_packet_bytes_stored_in_file) \ /** Number of bytes in actual packet. */ \ _ (u32, n_bytes_in_packet) /** Packet header. */ typedef struct { #define _(t, f) t f; foreach_mpcap_packet_header #undef _ /** Packet data follows. */ u8 data[0]; } mpcap_packet_header_t; /** * @brief MPCAP main state data structure */ typedef struct { /** File name of mpcap output. */ char *file_name; /** spinlock, initialized if flagged MPCAP_FLAG_THREAD_SAFE */ clib_spinlock_t lock; /** Number of packets to capture. */ u32 n_packets_to_capture; /** Packet type */ mpcap_packet_type_t packet_type; /** Maximum file size */ u64 max_file_size; /** Base address */ u8 *file_baseva; /** current memory address */ u8 *current_va; /** Number of packets currently captured. */ u32 n_packets_captured; /** Pointer to file header in svm, for ease of updating */ mpcap_file_header_t *file_header; /** flags */ u32 flags; #define MPCAP_FLAG_INIT_DONE (1 << 0) #define MPCAP_FLAG_THREAD_SAFE (1 << 1) #define MPCAP_FLAG_WRITE_ENABLE (1 << 2) /** Bytes written */ u32 n_mpcap_data_written; /** Vector of mpcap data. */ u8 *mpcap_data; /** Packets in mapped mpcap file. */ u64 packets_read; /** Min/Max Packet bytes */ u32 min_packet_bytes, max_packet_bytes; } mpcap_main_t; /* Some sensible default size */ #define MPCAP_DEFAULT_FILE_SIZE (10<<20) /** initialize a mpcap file (for writing) */ clib_error_t *mpcap_init (mpcap_main_t * pm); /** Flush / unmap a mpcap file */ clib_error_t *mpcap_close (mpcap_main_t * pm); /** mmap a mpcap data file. */ clib_error_t *mpcap_map (mpcap_main_t * pm); /** * @brief Add packet * * @param *pm - mpcap_main_t * @param time_now - f64 * @param n_bytes_in_trace - u32 * @param n_bytes_in_packet - u32 * * @return Packet Data * */ static inline void * mpcap_add_packet (mpcap_main_t * pm, f64 time_now, u32 n_bytes_in_trace, u32 n_bytes_in_packet) { mpcap_packet_header_t *h; u8 *d; /* File already closed? */ if (PREDICT_FALSE (pm->flags & MPCAP_FLAG_INIT_DONE) == 0) return 0; d = pm->current_va; pm->current_va += sizeof (h[0]) + n_bytes_in_trace; /* Out of space? */ if (PREDICT_FALSE (pm->current_va >= pm->file_baseva + pm->max_file_size)) return 0; h = (void *) (d); h->time_in_sec = time_now; h->time_in_usec = 1e6 * (time_now - h->time_in_sec); h->n_packet_bytes_stored_in_file = n_bytes_in_trace; h->n_bytes_in_packet = n_bytes_in_packet; pm->n_packets_captured++; return h->data; } /** * @brief Add buffer (vlib_buffer_t) to the trace * * @param *pm - mpcap_main_t * @param *vm - vlib_main_t * @param time_now - f64 * @param buffer_index - u32 * @param n_bytes_in_trace - u32 * */ static inline void mpcap_add_buffer (mpcap_main_t * pm, vlib_main_t * vm, f64 time_now, u32 buffer_index, u32 n_bytes_in_trace) { vlib_buffer_t *b = vlib_get_buffer (vm, buffer_index); u32 n = vlib_buffer_length_in_chain (vm, b); i32 n_left = clib_min (n_bytes_in_trace, n); void *d; clib_spinlock_lock_if_init (&pm->lock); d = mpcap_add_packet (pm, time_now, n_left, n); if (PREDICT_FALSE (d == 0)) { mpcap_close (pm); clib_spinlock_unlock_if_init (&pm->lock); return; } while (1) { u32 copy_length = clib_min ((u32) n_left, b->current_length); clib_memcpy (d, b->data + b->current_data, copy_length); n_left -= b->current_length; if (n_left <= 0) break; d += b->current_length; ASSERT (b->flags & VLIB_BUFFER_NEXT_PRESENT); b = vlib_get_buffer (vm, b->next_buffer); } if (pm->n_packets_captured >= pm->n_packets_to_capture) mpcap_close (pm); clib_spinlock_unlock_if_init (&pm->lock); } #endif /* included_vnet_mpcap_h */ /* * fd.io coding-style-patch-verification: ON * * Local Variables: * eval: (c-set-style "gnu") * End: */