diff options
Diffstat (limited to 'net/xfrm')
-rw-r--r-- | net/xfrm/xfrm_algo.c | 41 | ||||
-rw-r--r-- | net/xfrm/xfrm_compat.c | 6 | ||||
-rw-r--r-- | net/xfrm/xfrm_device.c | 3 | ||||
-rw-r--r-- | net/xfrm/xfrm_input.c | 1 | ||||
-rw-r--r-- | net/xfrm/xfrm_interface.c | 14 | ||||
-rw-r--r-- | net/xfrm/xfrm_output.c | 31 | ||||
-rw-r--r-- | net/xfrm/xfrm_policy.c | 24 | ||||
-rw-r--r-- | net/xfrm/xfrm_state.c | 24 | ||||
-rw-r--r-- | net/xfrm/xfrm_user.c | 42 |
9 files changed, 168 insertions, 18 deletions
diff --git a/net/xfrm/xfrm_algo.c b/net/xfrm/xfrm_algo.c index 4dae3ab8d030..094734fbec96 100644 --- a/net/xfrm/xfrm_algo.c +++ b/net/xfrm/xfrm_algo.c @@ -341,6 +341,26 @@ static struct xfrm_algo_desc aalg_list[] = { .pfkey_supported = 0, }, +{ + .name = "hmac(sm3)", + .compat = "sm3", + + .uinfo = { + .auth = { + .icv_truncbits = 256, + .icv_fullbits = 256, + } + }, + + .pfkey_supported = 1, + + .desc = { + .sadb_alg_id = SADB_X_AALG_SM3_256HMAC, + .sadb_alg_ivlen = 0, + .sadb_alg_minbits = 256, + .sadb_alg_maxbits = 256 + } +}, }; static struct xfrm_algo_desc ealg_list[] = { @@ -552,6 +572,27 @@ static struct xfrm_algo_desc ealg_list[] = { .sadb_alg_maxbits = 288 } }, +{ + .name = "cbc(sm4)", + .compat = "sm4", + + .uinfo = { + .encr = { + .geniv = "echainiv", + .blockbits = 128, + .defkeybits = 128, + } + }, + + .pfkey_supported = 1, + + .desc = { + .sadb_alg_id = SADB_X_EALG_SM4CBC, + .sadb_alg_ivlen = 16, + .sadb_alg_minbits = 128, + .sadb_alg_maxbits = 256 + } +}, }; static struct xfrm_algo_desc calg_list[] = { diff --git a/net/xfrm/xfrm_compat.c b/net/xfrm/xfrm_compat.c index 2bf269390163..a0f62fa02e06 100644 --- a/net/xfrm/xfrm_compat.c +++ b/net/xfrm/xfrm_compat.c @@ -127,6 +127,7 @@ static const struct nla_policy compat_policy[XFRMA_MAX+1] = { [XFRMA_SET_MARK] = { .type = NLA_U32 }, [XFRMA_SET_MARK_MASK] = { .type = NLA_U32 }, [XFRMA_IF_ID] = { .type = NLA_U32 }, + [XFRMA_MTIMER_THRESH] = { .type = NLA_U32 }, }; static struct nlmsghdr *xfrm_nlmsg_put_compat(struct sk_buff *skb, @@ -274,9 +275,10 @@ static int xfrm_xlate64_attr(struct sk_buff *dst, const struct nlattr *src) case XFRMA_SET_MARK: case XFRMA_SET_MARK_MASK: case XFRMA_IF_ID: + case XFRMA_MTIMER_THRESH: return xfrm_nla_cpy(dst, src, nla_len(src)); default: - BUILD_BUG_ON(XFRMA_MAX != XFRMA_IF_ID); + BUILD_BUG_ON(XFRMA_MAX != XFRMA_MTIMER_THRESH); pr_warn_once("unsupported nla_type %d\n", src->nla_type); return -EOPNOTSUPP; } @@ -431,7 +433,7 @@ static int xfrm_xlate32_attr(void *dst, const struct nlattr *nla, int err; if (type > XFRMA_MAX) { - BUILD_BUG_ON(XFRMA_MAX != XFRMA_IF_ID); + BUILD_BUG_ON(XFRMA_MAX != XFRMA_MTIMER_THRESH); NL_SET_ERR_MSG(extack, "Bad attribute"); return -EOPNOTSUPP; } diff --git a/net/xfrm/xfrm_device.c b/net/xfrm/xfrm_device.c index e843b0d9e2a6..3fa066419d37 100644 --- a/net/xfrm/xfrm_device.c +++ b/net/xfrm/xfrm_device.c @@ -259,6 +259,7 @@ int xfrm_dev_state_add(struct net *net, struct xfrm_state *x, } xso->dev = dev; + netdev_tracker_alloc(dev, &xso->dev_tracker, GFP_ATOMIC); xso->real_dev = dev; xso->num_exthdrs = 1; xso->flags = xuo->flags; @@ -269,7 +270,7 @@ int xfrm_dev_state_add(struct net *net, struct xfrm_state *x, xso->flags = 0; xso->dev = NULL; xso->real_dev = NULL; - dev_put(dev); + dev_put_track(dev, &xso->dev_tracker); if (err != -EOPNOTSUPP) return err; diff --git a/net/xfrm/xfrm_input.c b/net/xfrm/xfrm_input.c index 70a8c36f0ba6..144238a50f3d 100644 --- a/net/xfrm/xfrm_input.c +++ b/net/xfrm/xfrm_input.c @@ -669,6 +669,7 @@ resume: x->curlft.bytes += skb->len; x->curlft.packets++; + x->curlft.use_time = ktime_get_real_seconds(); spin_unlock(&x->lock); diff --git a/net/xfrm/xfrm_interface.c b/net/xfrm/xfrm_interface.c index 41de46b5ffa9..57448fc519fc 100644 --- a/net/xfrm/xfrm_interface.c +++ b/net/xfrm/xfrm_interface.c @@ -637,11 +637,16 @@ static int xfrmi_newlink(struct net *src_net, struct net_device *dev, struct netlink_ext_ack *extack) { struct net *net = dev_net(dev); - struct xfrm_if_parms p; + struct xfrm_if_parms p = {}; struct xfrm_if *xi; int err; xfrmi_netlink_parms(data, &p); + if (!p.if_id) { + NL_SET_ERR_MSG(extack, "if_id must be non zero"); + return -EINVAL; + } + xi = xfrmi_locate(net, &p); if (xi) return -EEXIST; @@ -666,7 +671,12 @@ static int xfrmi_changelink(struct net_device *dev, struct nlattr *tb[], { struct xfrm_if *xi = netdev_priv(dev); struct net *net = xi->net; - struct xfrm_if_parms p; + struct xfrm_if_parms p = {}; + + if (!p.if_id) { + NL_SET_ERR_MSG(extack, "if_id must be non zero"); + return -EINVAL; + } xfrmi_netlink_parms(data, &p); xi = xfrmi_locate(net, &p); diff --git a/net/xfrm/xfrm_output.c b/net/xfrm/xfrm_output.c index 229544bc70c2..d4935b3b9983 100644 --- a/net/xfrm/xfrm_output.c +++ b/net/xfrm/xfrm_output.c @@ -533,6 +533,7 @@ static int xfrm_output_one(struct sk_buff *skb, int err) x->curlft.bytes += skb->len; x->curlft.packets++; + x->curlft.use_time = ktime_get_real_seconds(); spin_unlock_bh(&x->lock); @@ -647,10 +648,12 @@ static int xfrm_output_gso(struct net *net, struct sock *sk, struct sk_buff *skb * This requires hardware to know the inner packet type to calculate * the inner header checksum. Save inner ip protocol here to avoid * traversing the packet in the vendor's xmit code. - * If the encap type is IPIP, just save skb->inner_ipproto. Otherwise, - * get the ip protocol from the IP header. + * For IPsec tunnel mode save the ip protocol from the IP header of the + * plain text packet. Otherwise If the encap type is IPIP, just save + * skb->inner_ipproto in any other case get the ip protocol from the IP + * header. */ -static void xfrm_get_inner_ipproto(struct sk_buff *skb) +static void xfrm_get_inner_ipproto(struct sk_buff *skb, struct xfrm_state *x) { struct xfrm_offload *xo = xfrm_offload(skb); const struct ethhdr *eth; @@ -658,6 +661,25 @@ static void xfrm_get_inner_ipproto(struct sk_buff *skb) if (!xo) return; + if (x->outer_mode.encap == XFRM_MODE_TUNNEL) { + switch (x->outer_mode.family) { + case AF_INET: + xo->inner_ipproto = ip_hdr(skb)->protocol; + break; + case AF_INET6: + xo->inner_ipproto = ipv6_hdr(skb)->nexthdr; + break; + default: + break; + } + + return; + } + + /* non-Tunnel Mode */ + if (!skb->encapsulation) + return; + if (skb->inner_protocol_type == ENCAP_TYPE_IPPROTO) { xo->inner_ipproto = skb->inner_ipproto; return; @@ -712,8 +734,7 @@ int xfrm_output(struct sock *sk, struct sk_buff *skb) sp->xvec[sp->len++] = x; xfrm_state_hold(x); - if (skb->encapsulation) - xfrm_get_inner_ipproto(skb); + xfrm_get_inner_ipproto(skb, x); skb->encapsulation = 1; if (skb_is_gso(skb)) { diff --git a/net/xfrm/xfrm_policy.c b/net/xfrm/xfrm_policy.c index 1a06585022ab..dccb8f3318ef 100644 --- a/net/xfrm/xfrm_policy.c +++ b/net/xfrm/xfrm_policy.c @@ -33,6 +33,7 @@ #include <net/flow.h> #include <net/xfrm.h> #include <net/ip.h> +#include <net/gre.h> #if IS_ENABLED(CONFIG_IPV6_MIP6) #include <net/mip6.h> #endif @@ -2680,7 +2681,7 @@ static int xfrm_expand_policies(const struct flowi *fl, u16 family, *num_xfrms = pols[0]->xfrm_nr; #ifdef CONFIG_XFRM_SUB_POLICY - if (pols[0] && pols[0]->action == XFRM_POLICY_ALLOW && + if (pols[0]->action == XFRM_POLICY_ALLOW && pols[0]->type != XFRM_POLICY_TYPE_MAIN) { pols[1] = xfrm_policy_lookup_bytype(xp_net(pols[0]), XFRM_POLICY_TYPE_MAIN, @@ -3392,7 +3393,6 @@ decode_session6(struct sk_buff *skb, struct flowi *fl, bool reverse) case NEXTHDR_DEST: offset += ipv6_optlen(exthdr); nexthdr = exthdr->nexthdr; - exthdr = (struct ipv6_opt_hdr *)(nh + offset); break; case IPPROTO_UDP: case IPPROTO_UDPLITE: @@ -3422,6 +3422,26 @@ decode_session6(struct sk_buff *skb, struct flowi *fl, bool reverse) } fl6->flowi6_proto = nexthdr; return; + case IPPROTO_GRE: + if (!onlyproto && + (nh + offset + 12 < skb->data || + pskb_may_pull(skb, nh + offset + 12 - skb->data))) { + struct gre_base_hdr *gre_hdr; + __be32 *gre_key; + + nh = skb_network_header(skb); + gre_hdr = (struct gre_base_hdr *)(nh + offset); + gre_key = (__be32 *)(gre_hdr + 1); + + if (gre_hdr->flags & GRE_KEY) { + if (gre_hdr->flags & GRE_CSUM) + gre_key++; + fl6->fl6_gre_key = *gre_key; + } + } + fl6->flowi6_proto = nexthdr; + return; + #if IS_ENABLED(CONFIG_IPV6_MIP6) case IPPROTO_MH: offset += ipv6_optlen(exthdr); diff --git a/net/xfrm/xfrm_state.c b/net/xfrm/xfrm_state.c index a2f4001221d1..ca6bee18346d 100644 --- a/net/xfrm/xfrm_state.c +++ b/net/xfrm/xfrm_state.c @@ -14,6 +14,7 @@ * */ +#include <linux/compat.h> #include <linux/workqueue.h> #include <net/xfrm.h> #include <linux/pfkeyv2.h> @@ -1593,6 +1594,9 @@ static struct xfrm_state *xfrm_state_clone(struct xfrm_state *orig, x->km.seq = orig->km.seq; x->replay = orig->replay; x->preplay = orig->preplay; + x->mapping_maxage = orig->mapping_maxage; + x->new_mapping = 0; + x->new_mapping_sport = 0; return x; @@ -2242,7 +2246,7 @@ int km_query(struct xfrm_state *x, struct xfrm_tmpl *t, struct xfrm_policy *pol) } EXPORT_SYMBOL(km_query); -int km_new_mapping(struct xfrm_state *x, xfrm_address_t *ipaddr, __be16 sport) +static int __km_new_mapping(struct xfrm_state *x, xfrm_address_t *ipaddr, __be16 sport) { int err = -EINVAL; struct xfrm_mgr *km; @@ -2257,6 +2261,24 @@ int km_new_mapping(struct xfrm_state *x, xfrm_address_t *ipaddr, __be16 sport) rcu_read_unlock(); return err; } + +int km_new_mapping(struct xfrm_state *x, xfrm_address_t *ipaddr, __be16 sport) +{ + int ret = 0; + + if (x->mapping_maxage) { + if ((jiffies / HZ - x->new_mapping) > x->mapping_maxage || + x->new_mapping_sport != sport) { + x->new_mapping_sport = sport; + x->new_mapping = jiffies / HZ; + ret = __km_new_mapping(x, ipaddr, sport); + } + } else { + ret = __km_new_mapping(x, ipaddr, sport); + } + + return ret; +} EXPORT_SYMBOL(km_new_mapping); void km_policy_expired(struct xfrm_policy *pol, int dir, int hard, u32 portid) diff --git a/net/xfrm/xfrm_user.c b/net/xfrm/xfrm_user.c index 7c36cc1f3d79..8cd6c8129004 100644 --- a/net/xfrm/xfrm_user.c +++ b/net/xfrm/xfrm_user.c @@ -11,6 +11,7 @@ * */ +#include <linux/compat.h> #include <linux/crypto.h> #include <linux/module.h> #include <linux/kernel.h> @@ -282,6 +283,10 @@ static int verify_newsa_info(struct xfrm_usersa_info *p, err = 0; + if (attrs[XFRMA_MTIMER_THRESH]) + if (!attrs[XFRMA_ENCAP]) + err = -EINVAL; + out: return err; } @@ -521,6 +526,7 @@ static void xfrm_update_ae_params(struct xfrm_state *x, struct nlattr **attrs, struct nlattr *lt = attrs[XFRMA_LTIME_VAL]; struct nlattr *et = attrs[XFRMA_ETIMER_THRESH]; struct nlattr *rt = attrs[XFRMA_REPLAY_THRESH]; + struct nlattr *mt = attrs[XFRMA_MTIMER_THRESH]; if (re) { struct xfrm_replay_state_esn *replay_esn; @@ -552,6 +558,9 @@ static void xfrm_update_ae_params(struct xfrm_state *x, struct nlattr **attrs, if (rt) x->replay_maxdiff = nla_get_u32(rt); + + if (mt) + x->mapping_maxage = nla_get_u32(mt); } static void xfrm_smark_init(struct nlattr **attrs, struct xfrm_mark *m) @@ -621,8 +630,13 @@ static struct xfrm_state *xfrm_state_construct(struct net *net, xfrm_smark_init(attrs, &x->props.smark); - if (attrs[XFRMA_IF_ID]) + if (attrs[XFRMA_IF_ID]) { x->if_id = nla_get_u32(attrs[XFRMA_IF_ID]); + if (!x->if_id) { + err = -EINVAL; + goto error; + } + } err = __xfrm_init_state(x, false, attrs[XFRMA_OFFLOAD_DEV]); if (err) @@ -1024,8 +1038,13 @@ static int copy_to_user_state_extra(struct xfrm_state *x, if (ret) goto out; } - if (x->security) + if (x->security) { ret = copy_sec_ctx(x->security, skb); + if (ret) + goto out; + } + if (x->mapping_maxage) + ret = nla_put_u32(skb, XFRMA_MTIMER_THRESH, x->mapping_maxage); out: return ret; } @@ -1413,8 +1432,13 @@ static int xfrm_alloc_userspi(struct sk_buff *skb, struct nlmsghdr *nlh, mark = xfrm_mark_get(attrs, &m); - if (attrs[XFRMA_IF_ID]) + if (attrs[XFRMA_IF_ID]) { if_id = nla_get_u32(attrs[XFRMA_IF_ID]); + if (!if_id) { + err = -EINVAL; + goto out_noput; + } + } if (p->info.seq) { x = xfrm_find_acq_byseq(net, mark, p->info.seq); @@ -1727,8 +1751,13 @@ static struct xfrm_policy *xfrm_policy_construct(struct net *net, struct xfrm_us xfrm_mark_get(attrs, &xp->mark); - if (attrs[XFRMA_IF_ID]) + if (attrs[XFRMA_IF_ID]) { xp->if_id = nla_get_u32(attrs[XFRMA_IF_ID]); + if (!xp->if_id) { + err = -EINVAL; + goto error; + } + } return xp; error: @@ -3058,7 +3087,7 @@ static inline unsigned int xfrm_sa_len(struct xfrm_state *x) if (x->props.extra_flags) l += nla_total_size(sizeof(x->props.extra_flags)); if (x->xso.dev) - l += nla_total_size(sizeof(x->xso)); + l += nla_total_size(sizeof(struct xfrm_user_offload)); if (x->props.smark.v | x->props.smark.m) { l += nla_total_size(sizeof(x->props.smark.v)); l += nla_total_size(sizeof(x->props.smark.m)); @@ -3069,6 +3098,9 @@ static inline unsigned int xfrm_sa_len(struct xfrm_state *x) /* Must count x->lastused as it may become non-zero behind our back. */ l += nla_total_size_64bit(sizeof(u64)); + if (x->mapping_maxage) + l += nla_total_size(sizeof(x->mapping_maxage)); + return l; } |