kernel/drivers/firmware/efi/libstub/skip_spaces.c, branch linux-6.18.yHosts the 0x221E linux distro kernel.https://universe.0xinfinity.dev/distro/kernel/atom?h=linux-6.18.y2020-06-15T17:43:58Zefi/libstub: Fix missing-prototype warning for skip_spaces()2020-06-15T17:43:58ZArd Biesheuvelardb@kernel.org2020-06-15T10:31:14Zurn:sha1:24552d10339f13d2174e013002da3ed90e26adda
Include <linux/string.h> into skip_spaces.c to silence a compiler
warning about a missing prototype.
Signed-off-by: Ard Biesheuvel <ardb@kernel.org>
efi/libstub: Clean up command line parsing routine2020-02-23T20:57:15ZArd Biesheuvelardb@kernel.org2020-02-10T16:02:46Zurn:sha1:91d150c0cc637b9d9d6394936add7cd2b7ccc410
We currently parse the command non-destructively, to avoid having to
allocate memory for a copy before passing it to the standard parsing
routines that are used by the core kernel, and which modify the input
to delineate the parsed tokens with NUL characters.
Instead, we call strstr() and strncmp() to go over the input multiple
times, and match prefixes rather than tokens, which implies that we
would match, e.g., 'nokaslrfoo' in the stub and disable KASLR, while
the kernel would disregard the option and run with KASLR enabled.
In order to avoid having to reason about whether and how this behavior
may be abused, let's clean up the parsing routines, and rebuild them
on top of the existing helpers.
Signed-off-by: Ard Biesheuvel <ardb@kernel.org>