| commit | 6e1b61075c183daad7a38733a38ca960abc3ed0d | |
| author | Matthew Dillon <dillon@apollo.backplane.com> | |
| Fri, 2 Nov 2018 02:06:14 +0000 (1 19:06 -0700) | ||
| committer | Matthew Dillon <dillon@apollo.backplane.com> | |
| Fri, 2 Nov 2018 02:11:46 +0000 (1 19:11 -0700) | ||
| tree | 5f10536d0a712d5607bd8949e6af645f4a02b827 | treesnapshot (tar.gz zip) |
| parent | e8f4f8225cec675a1c80eaf9acca814b8cc6cc42 | commitdiff |
boot - Handle tftp block overflows
* Properly truncate the block number when comparing against the
incoming packet. TFTP only implements 16-bit block numbers.
This allows the boot loader to access files larger than 32MB
via TFTP.
* Twiddle every 256 reads instead of every 16.
* Note that TFTP is not really a suitable protocol for loading the
kernel because the ELF loader seeks past the debug info which
can be well over a hundred megabytes in order to get to the syms.
NFS is preferred.
* Properly truncate the block number when comparing against the
incoming packet. TFTP only implements 16-bit block numbers.
This allows the boot loader to access files larger than 32MB
via TFTP.
* Twiddle every 256 reads instead of every 16.
* Note that TFTP is not really a suitable protocol for loading the
kernel because the ELF loader seeks past the debug info which
can be well over a hundred megabytes in order to get to the syms.
NFS is preferred.
| lib/libstand/tftp.c | diffblobblamehistory |