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2023-05-17audit: avoid missing-prototype warningsArnd Bergmann1-0/+2
Building with 'make W=1' reveals two function definitions without a previous prototype in the audit code: lib/compat_audit.c:32:5: error: no previous prototype for 'audit_classify_compat_syscall' [-Werror=missing-prototypes] kernel/audit.c:1813:14: error: no previous prototype for 'audit_serial' [-Werror=missing-prototypes] The first one needs a declaration from linux/audit.h but cannot include that header without causing conflicting (compat) syscall number definitions, so move the it into linux/audit_arch.h. The second one is declared conditionally based on CONFIG_AUDITSYSCALL but needed as a local function even when that option is disabled, so move the declaration out of the #ifdef block. Signed-off-by: Arnd Bergmann <arnd@arndb.de> Signed-off-by: Paul Moore <paul@paul-moore.com>
2021-10-01audit: add support for the openat2 syscallRichard Guy Briggs1-0/+1
The openat2(2) syscall was added in kernel v5.6 with commit fddb5d430ad9 ("open: introduce openat2(2) syscall"). Add the openat2(2) syscall to the audit syscall classifier. Link: https://github.com/linux-audit/audit-kernel/issues/67 Link: https://lore.kernel.org/r/f5f1a4d8699613f8c02ce762807228c841c2e26f.1621363275.git.rgb@redhat.com Signed-off-by: Richard Guy Briggs <rgb@redhat.com> Acked-by: Christian Brauner <christian.brauner@ubuntu.com> [PM: merge fuzz due to previous header rename, commit line wraps] Signed-off-by: Paul Moore <paul@paul-moore.com>
2021-10-01audit: replace magic audit syscall class numbers with macrosRichard Guy Briggs1-0/+23
Replace audit syscall class magic numbers with macros. This required putting the macros into new header file include/linux/audit_arch.h since the syscall macros were included for both 64 bit and 32 bit in any compat code, causing redefinition warnings. Link: https://lore.kernel.org/r/2300b1083a32aade7ae7efb95826e8f3f260b1df.1621363275.git.rgb@redhat.com Signed-off-by: Richard Guy Briggs <rgb@redhat.com> Acked-by: Christian Brauner <christian.brauner@ubuntu.com> [PM: renamed header to audit_arch.h after consulting with Richard] Signed-off-by: Paul Moore <paul@paul-moore.com>