diff options
Diffstat (limited to 'net/xfrm/xfrm_user.c')
| -rw-r--r-- | net/xfrm/xfrm_user.c | 40 |
1 files changed, 31 insertions, 9 deletions
diff --git a/net/xfrm/xfrm_user.c b/net/xfrm/xfrm_user.c index 2091664295ba..bd16c6c7e1e7 100644 --- a/net/xfrm/xfrm_user.c +++ b/net/xfrm/xfrm_user.c @@ -289,6 +289,31 @@ static int attach_one_algo(struct xfrm_algo **algpp, u8 *props, return 0; } +static int attach_crypt(struct xfrm_state *x, struct nlattr *rta) +{ + struct xfrm_algo *p, *ualg; + struct xfrm_algo_desc *algo; + + if (!rta) + return 0; + + ualg = nla_data(rta); + + algo = xfrm_ealg_get_byname(ualg->alg_name, 1); + if (!algo) + return -ENOSYS; + x->props.ealgo = algo->desc.sadb_alg_id; + + p = kmemdup(ualg, xfrm_alg_len(ualg), GFP_KERNEL); + if (!p) + return -ENOMEM; + + strcpy(p->alg_name, algo->name); + x->ealg = p; + x->geniv = algo->uinfo.encr.geniv; + return 0; +} + static int attach_auth(struct xfrm_algo_auth **algpp, u8 *props, struct nlattr *rta) { @@ -349,8 +374,7 @@ static int attach_auth_trunc(struct xfrm_algo_auth **algpp, u8 *props, return 0; } -static int attach_aead(struct xfrm_algo_aead **algpp, u8 *props, - struct nlattr *rta) +static int attach_aead(struct xfrm_state *x, struct nlattr *rta) { struct xfrm_algo_aead *p, *ualg; struct xfrm_algo_desc *algo; @@ -363,14 +387,15 @@ static int attach_aead(struct xfrm_algo_aead **algpp, u8 *props, algo = xfrm_aead_get_byname(ualg->alg_name, ualg->alg_icv_len, 1); if (!algo) return -ENOSYS; - *props = algo->desc.sadb_alg_id; + x->props.ealgo = algo->desc.sadb_alg_id; p = kmemdup(ualg, aead_len(ualg), GFP_KERNEL); if (!p) return -ENOMEM; strcpy(p->alg_name, algo->name); - *algpp = p; + x->aead = p; + x->geniv = algo->uinfo.aead.geniv; return 0; } @@ -515,8 +540,7 @@ static struct xfrm_state *xfrm_state_construct(struct net *net, if (attrs[XFRMA_SA_EXTRA_FLAGS]) x->props.extra_flags = nla_get_u32(attrs[XFRMA_SA_EXTRA_FLAGS]); - if ((err = attach_aead(&x->aead, &x->props.ealgo, - attrs[XFRMA_ALG_AEAD]))) + if ((err = attach_aead(x, attrs[XFRMA_ALG_AEAD]))) goto error; if ((err = attach_auth_trunc(&x->aalg, &x->props.aalgo, attrs[XFRMA_ALG_AUTH_TRUNC]))) @@ -526,9 +550,7 @@ static struct xfrm_state *xfrm_state_construct(struct net *net, attrs[XFRMA_ALG_AUTH]))) goto error; } - if ((err = attach_one_algo(&x->ealg, &x->props.ealgo, - xfrm_ealg_get_byname, - attrs[XFRMA_ALG_CRYPT]))) + if ((err = attach_crypt(x, attrs[XFRMA_ALG_CRYPT]))) goto error; if ((err = attach_one_algo(&x->calg, &x->props.calgo, xfrm_calg_get_byname, |