diff options
Diffstat (limited to 'src/modules/mavlink/mavlink_ftp.cpp')
| -rw-r--r-- | src/modules/mavlink/mavlink_ftp.cpp | 10 |
1 files changed, 8 insertions, 2 deletions
diff --git a/src/modules/mavlink/mavlink_ftp.cpp b/src/modules/mavlink/mavlink_ftp.cpp index 00c8df18c..5b65dc369 100644 --- a/src/modules/mavlink/mavlink_ftp.cpp +++ b/src/modules/mavlink/mavlink_ftp.cpp @@ -114,7 +114,7 @@ MavlinkFTP::_worker(Request *req) uint32_t messageCRC; // basic sanity checks; must validate length before use - if ((hdr->magic != kProtocolMagic) || (hdr->size > kMaxDataLength)) { + if (hdr->size > kMaxDataLength) { errorCode = kErrNoRequest; goto out; } @@ -122,6 +122,9 @@ MavlinkFTP::_worker(Request *req) // check request CRC to make sure this is one of ours messageCRC = hdr->crc32; hdr->crc32 = 0; + hdr->padding[0] = 0; + hdr->padding[1] = 0; + hdr->padding[2] = 0; if (crc32(req->rawData(), req->dataSize()) != messageCRC) { errorCode = kErrNoRequest; goto out; @@ -199,10 +202,13 @@ MavlinkFTP::_reply(Request *req) { auto hdr = req->header(); - hdr->magic = kProtocolMagic; + hdr->seqNumber = req->header()->seqNumber + 1; // message is assumed to be already constructed in the request buffer, so generate the CRC hdr->crc32 = 0; + hdr->padding[0] = 0; + hdr->padding[1] = 0; + hdr->padding[2] = 0; hdr->crc32 = crc32(req->rawData(), req->dataSize()); // then pack and send the reply back to the request source |