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Commit 3f69cc60 authored by Herbert Xu's avatar Herbert Xu
Browse files

crypto: af_alg - Allow arbitrarily long algorithm names 



This patch removes the hard-coded 64-byte limit on the length
of the algorithm name through bind(2).  The address length can
now exceed that.  The user-space structure remains unchanged.
In order to use a longer name simply extend the salg_name array
beyond its defined 64 bytes length.

Signed-off-by: default avatarHerbert Xu <herbert@gondor.apana.org.au>
parent 4473710d

crypto/af_alg.c

+2 −2
Original line number Diff line number Diff line
@@ -160,11 +160,11 @@ static int alg_bind(struct socket *sock, struct sockaddr *uaddr, int addr_len) 
	if (sock->state == SS_CONNECTED)

		return -EINVAL;



	if (addr_len != sizeof(*sa))

	if (addr_len < sizeof(*sa))

		return -EINVAL;



	sa->salg_type[sizeof(sa->salg_type) - 1] = 0;

	sa->salg_name[sizeof(sa->salg_name) - 1] = 0;

	sa->salg_name[sizeof(sa->salg_name) + addr_len - sizeof(*sa) - 1] = 0;



	type = alg_get_type(sa->salg_type);

	if (IS_ERR(type) && PTR_ERR(type) == -ENOENT) {