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Diffstat (limited to 'net/key/af_key.c')
-rw-r--r--net/key/af_key.c69
1 files changed, 53 insertions, 16 deletions
diff --git a/net/key/af_key.c b/net/key/af_key.c
index 3a95b2ee4690..ff98e70b0931 100644
--- a/net/key/af_key.c
+++ b/net/key/af_key.c
@@ -1731,7 +1731,8 @@ static u32 gen_reqid(void)
++reqid;
if (reqid == 0)
reqid = IPSEC_MANUAL_REQID_MAX+1;
- if (xfrm_policy_walk(check_reqid, (void*)&reqid) != -EEXIST)
+ if (xfrm_policy_walk(XFRM_POLICY_TYPE_MAIN, check_reqid,
+ (void*)&reqid) != -EEXIST)
return reqid;
} while (reqid != start);
return 0;
@@ -1765,7 +1766,7 @@ parse_ipsecrequest(struct xfrm_policy *xp, struct sadb_x_ipsecrequest *rq)
}
/* addresses present only in tunnel mode */
- if (t->mode) {
+ if (t->mode == XFRM_MODE_TUNNEL) {
switch (xp->family) {
case AF_INET:
sin = (void*)(rq+1);
@@ -1997,7 +1998,7 @@ static void pfkey_xfrm_policy2msg(struct sk_buff *skb, struct xfrm_policy *xp, i
int req_size;
req_size = sizeof(struct sadb_x_ipsecrequest);
- if (t->mode)
+ if (t->mode == XFRM_MODE_TUNNEL)
req_size += 2*socklen;
else
size -= 2*socklen;
@@ -2013,7 +2014,7 @@ static void pfkey_xfrm_policy2msg(struct sk_buff *skb, struct xfrm_policy *xp, i
if (t->optional)
rq->sadb_x_ipsecrequest_level = IPSEC_LEVEL_USE;
rq->sadb_x_ipsecrequest_reqid = t->reqid;
- if (t->mode) {
+ if (t->mode == XFRM_MODE_TUNNEL) {
switch (xp->family) {
case AF_INET:
sin = (void*)(rq+1);
@@ -2139,7 +2140,7 @@ static int pfkey_spdadd(struct sock *sk, struct sk_buff *skb, struct sadb_msg *h
xp->selector.proto = pfkey_proto_to_xfrm(sa->sadb_address_proto);
xp->selector.sport = ((struct sockaddr_in *)(sa+1))->sin_port;
if (xp->selector.sport)
- xp->selector.sport_mask = ~0;
+ xp->selector.sport_mask = htons(0xffff);
sa = ext_hdrs[SADB_EXT_ADDRESS_DST-1],
pfkey_sadb_addr2xfrm_addr(sa, &xp->selector.daddr);
@@ -2152,7 +2153,7 @@ static int pfkey_spdadd(struct sock *sk, struct sk_buff *skb, struct sadb_msg *h
xp->selector.dport = ((struct sockaddr_in *)(sa+1))->sin_port;
if (xp->selector.dport)
- xp->selector.dport_mask = ~0;
+ xp->selector.dport_mask = htons(0xffff);
sec_ctx = (struct sadb_x_sec_ctx *) ext_hdrs[SADB_X_EXT_SEC_CTX-1];
if (sec_ctx != NULL) {
@@ -2242,7 +2243,7 @@ static int pfkey_spddelete(struct sock *sk, struct sk_buff *skb, struct sadb_msg
sel.proto = pfkey_proto_to_xfrm(sa->sadb_address_proto);
sel.sport = ((struct sockaddr_in *)(sa+1))->sin_port;
if (sel.sport)
- sel.sport_mask = ~0;
+ sel.sport_mask = htons(0xffff);
sa = ext_hdrs[SADB_EXT_ADDRESS_DST-1],
pfkey_sadb_addr2xfrm_addr(sa, &sel.daddr);
@@ -2250,7 +2251,7 @@ static int pfkey_spddelete(struct sock *sk, struct sk_buff *skb, struct sadb_msg
sel.proto = pfkey_proto_to_xfrm(sa->sadb_address_proto);
sel.dport = ((struct sockaddr_in *)(sa+1))->sin_port;
if (sel.dport)
- sel.dport_mask = ~0;
+ sel.dport_mask = htons(0xffff);
sec_ctx = (struct sadb_x_sec_ctx *) ext_hdrs[SADB_X_EXT_SEC_CTX-1];
memset(&tmp, 0, sizeof(struct xfrm_policy));
@@ -2268,7 +2269,8 @@ static int pfkey_spddelete(struct sock *sk, struct sk_buff *skb, struct sadb_msg
return err;
}
- xp = xfrm_policy_bysel_ctx(pol->sadb_x_policy_dir-1, &sel, tmp.security, 1);
+ xp = xfrm_policy_bysel_ctx(XFRM_POLICY_TYPE_MAIN, pol->sadb_x_policy_dir-1,
+ &sel, tmp.security, 1);
security_xfrm_policy_free(&tmp);
if (xp == NULL)
return -ENOENT;
@@ -2330,7 +2332,7 @@ static int pfkey_spdget(struct sock *sk, struct sk_buff *skb, struct sadb_msg *h
if (dir >= XFRM_POLICY_MAX)
return -EINVAL;
- xp = xfrm_policy_byid(dir, pol->sadb_x_policy_id,
+ xp = xfrm_policy_byid(XFRM_POLICY_TYPE_MAIN, dir, pol->sadb_x_policy_id,
hdr->sadb_msg_type == SADB_X_SPDDELETE2);
if (xp == NULL)
return -ENOENT;
@@ -2378,7 +2380,7 @@ static int pfkey_spddump(struct sock *sk, struct sk_buff *skb, struct sadb_msg *
{
struct pfkey_dump_data data = { .skb = skb, .hdr = hdr, .sk = sk };
- return xfrm_policy_walk(dump_sp, &data);
+ return xfrm_policy_walk(XFRM_POLICY_TYPE_MAIN, dump_sp, &data);
}
static int key_notify_policy_flush(struct km_event *c)
@@ -2405,7 +2407,8 @@ static int pfkey_spdflush(struct sock *sk, struct sk_buff *skb, struct sadb_msg
{
struct km_event c;
- xfrm_policy_flush();
+ xfrm_policy_flush(XFRM_POLICY_TYPE_MAIN);
+ c.data.type = XFRM_POLICY_TYPE_MAIN;
c.event = XFRM_MSG_FLUSHPOLICY;
c.pid = hdr->sadb_msg_pid;
c.seq = hdr->sadb_msg_seq;
@@ -2667,6 +2670,9 @@ static int pfkey_send_notify(struct xfrm_state *x, struct km_event *c)
static int pfkey_send_policy_notify(struct xfrm_policy *xp, int dir, struct km_event *c)
{
+ if (xp && xp->type != XFRM_POLICY_TYPE_MAIN)
+ return 0;
+
switch (c->event) {
case XFRM_MSG_POLEXPIRE:
return key_notify_policy_expire(xp, c);
@@ -2675,6 +2681,8 @@ static int pfkey_send_policy_notify(struct xfrm_policy *xp, int dir, struct km_e
case XFRM_MSG_UPDPOLICY:
return key_notify_policy(xp, dir, c);
case XFRM_MSG_FLUSHPOLICY:
+ if (c->data.type != XFRM_POLICY_TYPE_MAIN)
+ break;
return key_notify_policy_flush(c);
default:
printk("pfkey: Unknown policy event %d\n", c->event);
@@ -2708,6 +2716,9 @@ static int pfkey_send_acquire(struct xfrm_state *x, struct xfrm_tmpl *t, struct
#endif
int sockaddr_size;
int size;
+ struct sadb_x_sec_ctx *sec_ctx;
+ struct xfrm_sec_ctx *xfrm_ctx;
+ int ctx_size = 0;
sockaddr_size = pfkey_sockaddr_size(x->props.family);
if (!sockaddr_size)
@@ -2723,6 +2734,11 @@ static int pfkey_send_acquire(struct xfrm_state *x, struct xfrm_tmpl *t, struct
else if (x->id.proto == IPPROTO_ESP)
size += count_esp_combs(t);
+ if ((xfrm_ctx = x->security)) {
+ ctx_size = PFKEY_ALIGN8(xfrm_ctx->ctx_len);
+ size += sizeof(struct sadb_x_sec_ctx) + ctx_size;
+ }
+
skb = alloc_skb(size + 16, GFP_ATOMIC);
if (skb == NULL)
return -ENOMEM;
@@ -2818,17 +2834,31 @@ static int pfkey_send_acquire(struct xfrm_state *x, struct xfrm_tmpl *t, struct
else if (x->id.proto == IPPROTO_ESP)
dump_esp_combs(skb, t);
+ /* security context */
+ if (xfrm_ctx) {
+ sec_ctx = (struct sadb_x_sec_ctx *) skb_put(skb,
+ sizeof(struct sadb_x_sec_ctx) + ctx_size);
+ sec_ctx->sadb_x_sec_len =
+ (sizeof(struct sadb_x_sec_ctx) + ctx_size) / sizeof(uint64_t);
+ sec_ctx->sadb_x_sec_exttype = SADB_X_EXT_SEC_CTX;
+ sec_ctx->sadb_x_ctx_doi = xfrm_ctx->ctx_doi;
+ sec_ctx->sadb_x_ctx_alg = xfrm_ctx->ctx_alg;
+ sec_ctx->sadb_x_ctx_len = xfrm_ctx->ctx_len;
+ memcpy(sec_ctx + 1, xfrm_ctx->ctx_str,
+ xfrm_ctx->ctx_len);
+ }
+
return pfkey_broadcast(skb, GFP_ATOMIC, BROADCAST_REGISTERED, NULL);
}
-static struct xfrm_policy *pfkey_compile_policy(u16 family, int opt,
+static struct xfrm_policy *pfkey_compile_policy(struct sock *sk, int opt,
u8 *data, int len, int *dir)
{
struct xfrm_policy *xp;
struct sadb_x_policy *pol = (struct sadb_x_policy*)data;
struct sadb_x_sec_ctx *sec_ctx;
- switch (family) {
+ switch (sk->sk_family) {
case AF_INET:
if (opt != IP_IPSEC_POLICY) {
*dir = -EOPNOTSUPP;
@@ -2869,7 +2899,7 @@ static struct xfrm_policy *pfkey_compile_policy(u16 family, int opt,
xp->lft.hard_byte_limit = XFRM_INF;
xp->lft.soft_packet_limit = XFRM_INF;
xp->lft.hard_packet_limit = XFRM_INF;
- xp->family = family;
+ xp->family = sk->sk_family;
xp->xfrm_nr = 0;
if (pol->sadb_x_policy_type == IPSEC_POLICY_IPSEC &&
@@ -2885,8 +2915,10 @@ static struct xfrm_policy *pfkey_compile_policy(u16 family, int opt,
p += pol->sadb_x_policy_len*8;
sec_ctx = (struct sadb_x_sec_ctx *)p;
if (len < pol->sadb_x_policy_len*8 +
- sec_ctx->sadb_x_sec_len)
+ sec_ctx->sadb_x_sec_len) {
+ *dir = -EINVAL;
goto out;
+ }
if ((*dir = verify_sec_ctx_len(p)))
goto out;
uctx = pfkey_sadb2xfrm_user_sec_ctx(sec_ctx);
@@ -2896,6 +2928,11 @@ static struct xfrm_policy *pfkey_compile_policy(u16 family, int opt,
if (*dir)
goto out;
}
+ else {
+ *dir = security_xfrm_sock_policy_alloc(xp, sk);
+ if (*dir)
+ goto out;
+ }
*dir = pol->sadb_x_policy_dir-1;
return xp;
generated by cgit v1.2.3 (git 2.39.1) at 2024-12-18 12:59:35 +0100