xfrm: Fix truncation length of authentication algorithms installed via PF_KEY

Commit 4447bb33f09444920a8f1d89e1540137429351b6 ("xfrm: Store aalg in xfrm_state with a user specified truncation length") breaks installation of authentication algorithms via PF_KEY, as the state specific truncation length is not installed with the algorithms default truncation length. This patch initializes state properly to the default if installed via PF_KEY. Signed-off-by: Martin Willi <martin@strongswan.org> Acked-by: Herbert Xu <herbert@gondor.apana.org.au> Signed-off-by: David S. Miller <davem@davemloft.net>

xfrm: Fix truncation length of authentication algorithms installed via PF_KEY
Commit 4447bb33f09444920a8f1d89e1540137429351b6 ("xfrm: Store aalg in xfrm_state with a user specified truncation length") breaks installation of authentication algorithms via PF_KEY, as the state specific truncation length is not installed with the algorithms default truncation length. This patch initializes state properly to the default if installed via PF_KEY. Signed-off-by: Martin Willi <martin@strongswan.org> Acked-by: Herbert Xu <herbert@gondor.apana.org.au> Signed-off-by: David S. Miller <davem@davemloft.net>
Martin Willi · David S. Miller
1 parent de039f02d8
Showing 1 changed file with 1 additions and 0 deletions Side-by-side Diff
net/key/af_key.c
@@ -1193,6 +1193,7 @@
 			x->aalg->alg_key_len = key->sadb_key_bits;
 			memcpy(x->aalg->alg_key, key+1, keysize);
 		}
+		x->aalg->alg_trunc_len = a->uinfo.auth.icv_truncbits;
 		x->props.aalgo = sa->sadb_sa_auth;
 		/* x->algo.flags = sa->sadb_sa_flags; */
 	}
...	...	@@ -1193,6 +1193,7 @@
1193	1193	x->aalg->alg_key_len = key->sadb_key_bits;
1194	1194	memcpy(x->aalg->alg_key, key+1, keysize);
1195	1195	}
	1196	+ x->aalg->alg_trunc_len = a->uinfo.auth.icv_truncbits;
1196	1197	x->props.aalgo = sa->sadb_sa_auth;
1197	1198	/* x->algo.flags = sa->sadb_sa_flags; */
1198	1199	}