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hci_dump_posix_fs: add HCI_DUMP_BTSNOOP

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This commit is contained in:
Matthias Ringwald 2021-06-21 23:22:21 +02:00
parent a9b0ec79f4
commit 9620d15fc7
2 changed files with 27 additions and 1 deletions
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3
CHANGELOG.md
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@ -7,7 +7,10 @@ and this project adheres to [Semantic Versioning](http://semver.org/spec/v2.0.0.
---
## Unreleased
### Added
- HCI Dump: Support BTSnoop format in hci_dump_posix_fs.c for format = HCI_DUMP_BTSNOOP
### Fixed
### Changed

25
platform/posix/hci_dump_posix_fs.c
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@ -82,10 +82,12 @@ static void hci_dump_posix_fs_log_packet(uint8_t packet_type, uint8_t in, uint8_
static union {
uint8_t header_bluez[HCI_DUMP_HEADER_SIZE_BLUEZ];
uint8_t header_packetlogger[HCI_DUMP_HEADER_SIZE_PACKETLOGGER];
uint8_t header_btsnoop[HCI_DUMP_HEADER_SIZE_BTSNOOP];
} header;
uint32_t tv_sec = 0;
uint32_t tv_us = 0;
uint64_t ts_usec;
// get time
struct timeval curr_time;
@ -103,7 +105,15 @@ static void hci_dump_posix_fs_log_packet(uint8_t packet_type, uint8_t in, uint8_
hci_dump_setup_header_packetlogger(header.header_packetlogger, tv_sec, tv_us, packet_type, in, len);
header_len = HCI_DUMP_HEADER_SIZE_PACKETLOGGER;
break;
case HCI_DUMP_BTSNOOP:
// log messages not supported
if (packet_type == LOG_MESSAGE_PACKET) return;
ts_usec = ((uint64_t) curr_time.tv_sec) * 1000000 + curr_time.tv_usec;
hci_dump_setup_header_btsnoop(header.header_btsnoop, ts_usec >> 32, ts_usec & 0xFFFFFFFF, 0, packet_type, in, len);
header_len = HCI_DUMP_HEADER_SIZE_BTSNOOP;
break;
default:
btstack_unreachable();
return;
}
@ -119,7 +129,7 @@ static void hci_dump_posix_fs_log_message(const char * format, va_list argptr){
// returns system errno
int hci_dump_posix_fs_open(const char *filename, hci_dump_format_t format){
btstack_assert(format == HCI_DUMP_BLUEZ || format == HCI_DUMP_PACKETLOGGER);
btstack_assert(format == HCI_DUMP_BLUEZ || format == HCI_DUMP_PACKETLOGGER || format == HCI_DUMP_BTSNOOP);
dump_format = format;
int oflags = O_WRONLY | O_CREAT | O_TRUNC;
@ -131,6 +141,19 @@ int hci_dump_posix_fs_open(const char *filename, hci_dump_format_t format){
printf("failed to open file %s, errno = %d\n", filename, errno);
return errno;
}
if (format == HCI_DUMP_BTSNOOP){
// write BTSnoop file header
const uint8_t file_header[] = {
// Identification Pattern: "btsnoop\0"
0x62, 0x74, 0x73, 0x6E, 0x6F, 0x6F, 0x70, 0x00,
// Version: 1
0x00, 0x00, 0x00, 0x01,
// Datalink Type: 1001 - Un-encapsulated HCI
0x00, 0x00, 0x03, 0xE9,
};
(void) write(dump_file, &file_header, sizeof(file_header));
}
return 0;
}