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| author | Kees Cook <keescook@chromium.org> | 2020-10-02 19:38:25 +0200 |
|---|---|---|
| committer | Greg Kroah-Hartman <gregkh@linuxfoundation.org> | 2020-10-05 13:37:04 +0200 |
| commit | 0fa8e084648779eeb8929ae004301b3acf3bad84 (patch) | |
| tree | ebfed647c8f2a43a0967ba127c7e75df36909cba /lib/net_utils.c | |
| parent | IMA: Add support for file reads without contents (diff) | |
| download | linux-0fa8e084648779eeb8929ae004301b3acf3bad84.tar.xz linux-0fa8e084648779eeb8929ae004301b3acf3bad84.zip | |
fs/kernel_file_read: Add "offset" arg for partial reads
To perform partial reads, callers of kernel_read_file*() must have a
non-NULL file_size argument and a preallocated buffer. The new "offset"
argument can then be used to seek to specific locations in the file to
fill the buffer to, at most, "buf_size" per call.
Where possible, the LSM hooks can report whether a full file has been
read or not so that the contents can be reasoned about.
Signed-off-by: Kees Cook <keescook@chromium.org>
Link: https://lore.kernel.org/r/20201002173828.2099543-14-keescook@chromium.org
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Diffstat (limited to 'lib/net_utils.c')
0 files changed, 0 insertions, 0 deletions