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| author | Emmanuel Vadot <manu@FreeBSD.org> | 2021-12-30 08:47:06 +0000 |
|---|---|---|
| committer | Emmanuel Vadot <manu@FreeBSD.org> | 2021-12-30 15:30:13 +0000 |
| commit | dfc9c1d4937d0e2eab2910665069faba814bca1e (patch) | |
| tree | e2511b4ba406617d23fb427eb731c9408e15b9a8 /stand | |
| parent | b6f7942cbcbde7c09788e86fdfe9310eafcb6e9f (diff) | |
| download | src-dfc9c1d4937d0e2eab2910665069faba814bca1e.tar.gz src-dfc9c1d4937d0e2eab2910665069faba814bca1e.zip | |
loader: tftp: Copy the first block into the cache
tftp_open reads the first block so copy it in the cached data.
If we have more than one block (i.e. we called tftp_read before
tftp_preload) simply just reset the transfer.
Reported by: mmel
Reviewed by: mmel, tsoome
MFC after: 2 weeks
Sponsored by: Beckhoff Automation GmbH & Co. KG
Differential Revision: https://reviews.freebsd.org/D33697
Diffstat (limited to 'stand')
| -rw-r--r-- | stand/libsa/tftp.c | 7 |
1 files changed, 7 insertions, 0 deletions
diff --git a/stand/libsa/tftp.c b/stand/libsa/tftp.c index 9d1c70236925..c520a9e3b3b1 100644 --- a/stand/libsa/tftp.c +++ b/stand/libsa/tftp.c @@ -680,6 +680,13 @@ tftp_preload(struct open_file *f) start = getsecs(); printf("Preloading %s ", tftpfile->path); #endif + if (tftpfile->currblock == 1) + bcopy(tftpfile->tftp_hdr->th_data, + cache, + tftpfile->validsize); + else + tftpfile->currblock = 0; + while (tftpfile->islastblock == 0) { twiddle(32); rc = tftp_getnextblock(tftpfile); |