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authorDave Barach <dave@barachs.net>2018-05-16 11:34:35 -0400
committerDamjan Marion <dmarion.lists@gmail.com>2018-05-17 06:27:34 +0000
commit78c568905724af785e90185fd89fa8717b3b35c2 (patch)
tree85f5c35f4cef17be2490b4d3033ff07c71414556 /src
parent26d6fd7f4deb67480c54eeff81aca36a8182dc0d (diff)
Packet generator: preserve pcap file timestamps
Set vnet_buffer2(b0)->pg_replay_timestamp, for use when desired. Fix a memory leak in pg_stream_free(...), which wasn't freeing the replay packet templates. Change-Id: I01822a9e91a52de4774d2b95cf0c2ee254a915e9 Signed-off-by: Dave Barach <dave@barachs.net>
Diffstat (limited to 'src')
-rw-r--r--src/vnet/buffer.h5
-rw-r--r--src/vnet/pg/cli.c1
-rw-r--r--src/vnet/pg/input.c1
-rw-r--r--src/vnet/pg/pg.h6
-rw-r--r--src/vnet/unix/pcap.c7
-rw-r--r--src/vnet/unix/pcap.h3
6 files changed, 23 insertions, 0 deletions
diff --git a/src/vnet/buffer.h b/src/vnet/buffer.h
index dfb05ac0b17..86bee6f30d4 100644
--- a/src/vnet/buffer.h
+++ b/src/vnet/buffer.h
@@ -403,6 +403,11 @@ typedef struct
u16 *trajectory_trace;
#endif
};
+ struct
+ {
+ u64 pad[1];
+ u64 pg_replay_timestamp;
+ };
u32 unused[10];
};
} vnet_buffer_opaque2_t;
diff --git a/src/vnet/pg/cli.c b/src/vnet/pg/cli.c
index 3c249a7b5f1..745b9b2bf69 100644
--- a/src/vnet/pg/cli.c
+++ b/src/vnet/pg/cli.c
@@ -228,6 +228,7 @@ pg_pcap_read (pg_stream_t * s, char *file_name)
pm.file_name = file_name;
error = pcap_read (&pm);
s->replay_packet_templates = pm.packets_read;
+ s->replay_packet_timestamps = pm.timestamps;
s->min_packet_bytes = pm.min_packet_bytes;
s->max_packet_bytes = pm.max_packet_bytes;
s->buffer_bytes = pm.max_packet_bytes;
diff --git a/src/vnet/pg/input.c b/src/vnet/pg/input.c
index a7430822c9b..a9510b7c9c9 100644
--- a/src/vnet/pg/input.c
+++ b/src/vnet/pg/input.c
@@ -1083,6 +1083,7 @@ init_replay_buffers_inline (vlib_main_t * vm,
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))
diff --git a/src/vnet/pg/pg.h b/src/vnet/pg/pg.h
index 20852ba18d1..b2b5798eb22 100644
--- a/src/vnet/pg/pg.h
+++ b/src/vnet/pg/pg.h
@@ -169,6 +169,7 @@ typedef struct pg_stream_t
pg_buffer_index_t *buffer_indices;
u8 **replay_packet_templates;
+ u64 *replay_packet_timestamps;
u32 current_replay_packet_index;
} pg_stream_t;
@@ -192,6 +193,7 @@ pg_edit_group_free (pg_edit_group_t * g)
always_inline void
pg_stream_free (pg_stream_t * s)
{
+ int i;
pg_edit_group_t *g;
pg_edit_t *e;
vec_foreach (e, s->non_fixed_edits) pg_edit_free (e);
@@ -201,6 +203,10 @@ pg_stream_free (pg_stream_t * s)
vec_free (s->fixed_packet_data);
vec_free (s->fixed_packet_data_mask);
vec_free (s->name);
+ for (i = 0; i < vec_len (s->replay_packet_templates); i++)
+ vec_free (s->replay_packet_templates[i]);
+ vec_free (s->replay_packet_templates);
+ vec_free (s->replay_packet_timestamps);
{
pg_buffer_index_t *bi;
diff --git a/src/vnet/unix/pcap.c b/src/vnet/unix/pcap.c
index 0832b16e753..473430a670e 100644
--- a/src/vnet/unix/pcap.c
+++ b/src/vnet/unix/pcap.c
@@ -216,6 +216,9 @@ pcap_read (pcap_main_t * pm)
while ((n = read (fd, &ph, sizeof (ph))) != 0)
{
u8 *data;
+ u64 timestamp;
+ u32 timestamp_sec;
+ u32 timestamp_usec;
if (need_swap)
{
@@ -242,7 +245,11 @@ pcap_read (pcap_main_t * pm)
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:
diff --git a/src/vnet/unix/pcap.h b/src/vnet/unix/pcap.h
index e3fac458af4..7d55db37979 100644
--- a/src/vnet/unix/pcap.h
+++ b/src/vnet/unix/pcap.h
@@ -151,6 +151,9 @@ typedef struct
/** Packets read from file. */
u8 **packets_read;
+ /** Timestamps */
+ u64 *timestamps;
+
/** Min/Max Packet bytes */
u32 min_packet_bytes, max_packet_bytes;
} pcap_main_t;