/* * AppArmor security module * * This file contains AppArmor auditing function definitions. * * Copyright (C) 1998-2008 Novell/SUSE * Copyright 2009-2010 Canonical Ltd. * * This program is free software; you can redistribute it and/or * modify it under the terms of the GNU General Public License as * published by the Free Software Foundation, version 2 of the * License. */ #ifndef __AA_AUDIT_H #define __AA_AUDIT_H #include #include #include #include #include #include "file.h" struct aa_profile; extern const char *const audit_mode_names[]; #define AUDIT_MAX_INDEX 5 enum audit_mode { AUDIT_NORMAL, /* follow normal auditing of accesses */ AUDIT_QUIET_DENIED, /* quiet all denied access messages */ AUDIT_QUIET, /* quiet all messages */ AUDIT_NOQUIET, /* do not quiet audit messages */ AUDIT_ALL /* audit all accesses */ }; enum audit_type { AUDIT_APPARMOR_AUDIT, AUDIT_APPARMOR_ALLOWED, AUDIT_APPARMOR_DENIED, AUDIT_APPARMOR_HINT, AUDIT_APPARMOR_STATUS, AUDIT_APPARMOR_ERROR, AUDIT_APPARMOR_KILL, AUDIT_APPARMOR_AUTO }; extern const char *const op_table[]; enum aa_ops { OP_NULL, OP_SYSCTL, OP_CAPABLE, OP_UNLINK, OP_MKDIR, OP_RMDIR, OP_MKNOD, OP_TRUNC, OP_LINK, OP_SYMLINK, OP_RENAME_SRC, OP_RENAME_DEST, OP_CHMOD, OP_CHOWN, OP_GETATTR, OP_OPEN, OP_FPERM, OP_FLOCK, OP_FMMAP, OP_FMPROT, OP_CREATE, OP_POST_CREATE, OP_BIND, OP_CONNECT, OP_LISTEN, OP_ACCEPT, OP_SENDMSG, OP_RECVMSG, OP_GETSOCKNAME, OP_GETPEERNAME, OP_GETSOCKOPT, OP_SETSOCKOPT, OP_SOCK_SHUTDOWN, OP_PTRACE, OP_EXEC, OP_CHANGE_HAT, OP_CHANGE_PROFILE, OP_CHANGE_ONEXEC, OP_SETPROCATTR, OP_SETRLIMIT, OP_PROF_REPL, OP_PROF_LOAD, OP_PROF_RM, }; struct apparmor_audit_data { int error; int op; int type; void *profile; const char *name; const char *info; union { void *target; struct { long pos; void *target; } iface; struct { int rlim; unsigned long max; } rlim; struct { const char *target; u32 request; u32 denied; kuid_t ouid; } fs; }; }; /* define a short hand for apparmor_audit_data structure */ #define aad apparmor_audit_data void aa_audit_msg(int type, struct common_audit_data *sa, void (*cb) (struct audit_buffer *, void *)); int aa_audit(int type, struct aa_profile *profile, gfp_t gfp, struct common_audit_data *sa, void (*cb) (struct audit_buffer *, void *)); static inline int complain_error(int error) { if (error == -EPERM || error == -EACCES) return 0; return error; } #endif /* __AA_AUDIT_H */ 718d13a50fbc746ed9b415c25e92'/>
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authorArd Biesheuvel <ard.biesheuvel@linaro.org>2017-02-01 17:45:02 +0000
committerIngo Molnar <mingo@kernel.org>2017-02-01 21:17:49 +0100
commitc8f325a59cfc718d13a50fbc746ed9b415c25e92 (patch)
treed53fbdac9d0781e39a13b2ac6b2bd258cf3b4140 /include/uapi/asm-generic/shmbuf.h
parentbf29bddf0417a4783da3b24e8c9e017ac649326f (diff)
efi/fdt: Avoid FDT manipulation after ExitBootServices()
Some AArch64 UEFI implementations disable the MMU in ExitBootServices(), after which unaligned accesses to RAM are no longer supported. Commit: abfb7b686a3e ("efi/libstub/arm*: Pass latest memory map to the kernel") fixed an issue in the memory map handling of the stub FDT code, but inadvertently created an issue with such firmware, by moving some of the FDT manipulation to after the invocation of ExitBootServices(). Given that the stub's libfdt implementation uses the ordinary, accelerated string functions, which rely on hardware handling of unaligned accesses, manipulating the FDT with the MMU off may result in alignment faults. So fix the situation by moving the update_fdt_memmap() call into the callback function invoked by efi_exit_boot_services() right before it calls the ExitBootServices() UEFI service (which is arguably a better place for it anyway) Note that disabling the MMU in ExitBootServices() is not compliant with the UEFI spec, and carries great risk due to the fact that switching from cached to uncached memory accesses halfway through compiler generated code (i.e., involving a stack) can never be done in a way that is architecturally safe. Fixes: abfb7b686a3e ("efi/libstub/arm*: Pass latest memory map to the kernel") Signed-off-by: Ard Biesheuvel <ard.biesheuvel@linaro.org> Tested-by: Riku Voipio <riku.voipio@linaro.org> Cc: <stable@vger.kernel.org> Cc: mark.rutland@arm.com Cc: linux-efi@vger.kernel.org Cc: matt@codeblueprint.co.uk Cc: leif.lindholm@linaro.org Cc: linux-arm-kernel@lists.infradead.org Link: http://lkml.kernel.org/r/1485971102-23330-2-git-send-email-ard.biesheuvel@linaro.org Signed-off-by: Ingo Molnar <mingo@kernel.org>
Diffstat (limited to 'include/uapi/asm-generic/shmbuf.h')