#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 */ plumbingsTobias Klauser
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authorMathias Krause <minipli@googlemail.com>2016-12-28 17:52:15 +0100
committerDavid S. Miller <davem@davemloft.net>2016-12-29 14:05:15 -0500
commit4775cc1f2d5abca894ac32774eefc22c45347d1c (patch)
treeac0f9d20f70784f778aa821c870bb0dcf3ccd6a8
parentb2eb09af7370fedc6b9d9f05762f01625438467a (diff)
rtnl: stats - add missing netlink message size checks
We miss to check if the netlink message is actually big enough to contain a struct if_stats_msg. Add a check to prevent userland from sending us short messages that would make us access memory beyond the end of the message. Fixes: 10c9ead9f3c6 ("rtnetlink: add new RTM_GETSTATS message to dump...") Signed-off-by: Mathias Krause <minipli@googlemail.com> Cc: Roopa Prabhu <roopa@cumulusnetworks.com> Signed-off-by: David S. Miller <davem@davemloft.net>
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