/* * netsniff-ng - the packet sniffing beast * Copyright 2011 Daniel Borkmann. * Subject to the GPL, version 2. */ #ifndef CT_USERMGMT_H #define CT_USERMGMT_H #include #include "curve.h" #include "crypto_hash_sha512.h" enum is_user_enum { USERNAMES_OK = 0, /* Usernames match, valid 'token' */ USERNAMES_NE, /* Usernames do not match */ USERNAMES_TS, /* Usernames match, but 'token' invalid, Drop connection here */ USERNAMES_ERR, }; struct username_struct { uint32_t salt; uint8_t hash[crypto_hash_sha512_BYTES]; }; extern int username_msg(char *username, size_t len, char *dst, size_t dlen); extern enum is_user_enum username_msg_is_user(char *src, size_t slen, char *username, size_t len); extern void parse_userfile_and_generate_user_store_or_die(char *homedir); extern void dump_user_store(void); extern void destroy_user_store(void); extern int get_user_by_socket(int sock, struct curve25519_proto **proto); extern int get_user_by_sockaddr(struct sockaddr_storage *sa, size_t sa_len, struct curve25519_proto **proto); extern int try_register_user_by_socket(struct curve25519_struct *c, char *src, size_t slen, int sock, int log); extern int try_register_user_by_sockaddr(struct curve25519_struct *c, char *src, size_t slen, struct sockaddr_storage *sa, size_t sa_len, int log); extern void remove_user_by_socket(int sock); extern void remove_user_by_sockaddr(struct sockaddr_storage *sa, size_t sa_len); #endif /* CT_USERMGMT_H */ table>
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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/net/inet_common.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/net/inet_common.h')