* Derek Atkins <derek@ihtfp.com>
*/
-#include <linux/config.h>
#include <linux/capability.h>
#include <linux/module.h>
#include <linux/kernel.h>
#include <linux/proc_fs.h>
#include <linux/init.h>
#include <net/xfrm.h>
+#include <linux/audit.h>
#include <net/sock.h>
else
err = xfrm_state_update(x);
+ xfrm_audit_log(audit_get_loginuid(current->audit_context), 0,
+ AUDIT_MAC_IPSEC_ADDSA, err ? 0 : 1, NULL, x);
+
if (err < 0) {
x->km.state = XFRM_STATE_DEAD;
__xfrm_state_put(x);
if (x == NULL)
return -ESRCH;
+ if ((err = security_xfrm_state_delete(x)))
+ goto out;
+
if (xfrm_state_kern(x)) {
- xfrm_state_put(x);
- return -EPERM;
+ err = -EPERM;
+ goto out;
}
-
+
err = xfrm_state_delete(x);
- if (err < 0) {
- xfrm_state_put(x);
- return err;
- }
+
+ xfrm_audit_log(audit_get_loginuid(current->audit_context), 0,
+ AUDIT_MAC_IPSEC_DELSA, err ? 0 : 1, NULL, x);
+
+ if (err < 0)
+ goto out;
c.seq = hdr->sadb_msg_seq;
c.pid = hdr->sadb_msg_pid;
c.event = XFRM_MSG_DELSA;
km_state_notify(x, &c);
+out:
xfrm_state_put(x);
return err;
{
unsigned proto;
struct km_event c;
+ struct xfrm_audit audit_info;
proto = pfkey_satype2proto(hdr->sadb_msg_satype);
if (proto == 0)
return -EINVAL;
- xfrm_state_flush(proto);
+ audit_info.loginuid = audit_get_loginuid(current->audit_context);
+ audit_info.secid = 0;
+ xfrm_state_flush(proto, &audit_info);
c.data.proto = proto;
c.seq = hdr->sadb_msg_seq;
c.pid = hdr->sadb_msg_pid;
++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;
}
/* addresses present only in tunnel mode */
- if (t->mode) {
- switch (xp->family) {
+ if (t->mode == XFRM_MODE_TUNNEL) {
+ struct sockaddr *sa;
+ sa = (struct sockaddr *)(rq+1);
+ switch(sa->sa_family) {
case AF_INET:
- sin = (void*)(rq+1);
- if (sin->sin_family != AF_INET)
- return -EINVAL;
+ sin = (struct sockaddr_in*)sa;
t->saddr.a4 = sin->sin_addr.s_addr;
sin++;
if (sin->sin_family != AF_INET)
break;
#if defined(CONFIG_IPV6) || defined(CONFIG_IPV6_MODULE)
case AF_INET6:
- sin6 = (void *)(rq+1);
- if (sin6->sin6_family != AF_INET6)
- return -EINVAL;
+ sin6 = (struct sockaddr_in6*)sa;
memcpy(t->saddr.a6, &sin6->sin6_addr, sizeof(struct in6_addr));
sin6++;
if (sin6->sin6_family != AF_INET6)
default:
return -EINVAL;
}
- }
+ t->encap_family = sa->sa_family;
+ } else
+ t->encap_family = xp->family;
+
/* No way to set this via kame pfkey */
t->aalgos = t->ealgos = t->calgos = ~0;
xp->xfrm_nr++;
static int pfkey_xfrm_policy2msg_size(struct xfrm_policy *xp)
{
+ struct xfrm_tmpl *t;
int sockaddr_size = pfkey_sockaddr_size(xp->family);
- int socklen = (xp->family == AF_INET ?
- sizeof(struct sockaddr_in) :
- sizeof(struct sockaddr_in6));
+ int socklen = 0;
+ int i;
+
+ for (i=0; i<xp->xfrm_nr; i++) {
+ t = xp->xfrm_vec + i;
+ socklen += (t->encap_family == AF_INET ?
+ sizeof(struct sockaddr_in) :
+ sizeof(struct sockaddr_in6));
+ }
return sizeof(struct sadb_msg) +
(sizeof(struct sadb_lifetime) * 3) +
(sizeof(struct sadb_address) * 2) +
(sockaddr_size * 2) +
sizeof(struct sadb_x_policy) +
- (xp->xfrm_nr * (sizeof(struct sadb_x_ipsecrequest) +
- (socklen * 2))) +
+ (xp->xfrm_nr * sizeof(struct sadb_x_ipsecrequest)) +
+ (socklen * 2) +
pfkey_xfrm_policy2sec_ctx_size(xp);
}
int req_size;
req_size = sizeof(struct sadb_x_ipsecrequest);
- if (t->mode)
- req_size += 2*socklen;
+ if (t->mode == XFRM_MODE_TUNNEL)
+ req_size += ((t->encap_family == AF_INET ?
+ sizeof(struct sockaddr_in) :
+ sizeof(struct sockaddr_in6)) * 2);
else
size -= 2*socklen;
rq = (void*)skb_put(skb, req_size);
if (t->optional)
rq->sadb_x_ipsecrequest_level = IPSEC_LEVEL_USE;
rq->sadb_x_ipsecrequest_reqid = t->reqid;
- if (t->mode) {
- switch (xp->family) {
+ if (t->mode == XFRM_MODE_TUNNEL) {
+ switch (t->encap_family) {
case AF_INET:
sin = (void*)(rq+1);
sin->sin_family = AF_INET;
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);
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) {
err = xfrm_policy_insert(pol->sadb_x_policy_dir-1, xp,
hdr->sadb_msg_type != SADB_X_SPDUPDATE);
+ xfrm_audit_log(audit_get_loginuid(current->audit_context), 0,
+ AUDIT_MAC_IPSEC_ADDSPD, err ? 0 : 1, xp, NULL);
+
if (err)
goto out;
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);
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));
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;
- err = 0;
+ err = security_xfrm_policy_delete(xp);
+
+ xfrm_audit_log(audit_get_loginuid(current->audit_context), 0,
+ AUDIT_MAC_IPSEC_DELSPD, err ? 0 : 1, xp, NULL);
+
+ if (err)
+ goto out;
c.seq = hdr->sadb_msg_seq;
c.pid = hdr->sadb_msg_pid;
c.event = XFRM_MSG_DELPOLICY;
km_policy_notify(xp, pol->sadb_x_policy_dir-1, &c);
+out:
xfrm_pol_put(xp);
return err;
}
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;
{
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)
static int pfkey_spdflush(struct sock *sk, struct sk_buff *skb, struct sadb_msg *hdr, void **ext_hdrs)
{
struct km_event c;
+ struct xfrm_audit audit_info;
- xfrm_policy_flush();
+ audit_info.loginuid = audit_get_loginuid(current->audit_context);
+ audit_info.secid = 0;
+ xfrm_policy_flush(XFRM_POLICY_TYPE_MAIN, &audit_info);
+ c.data.type = XFRM_POLICY_TYPE_MAIN;
c.event = XFRM_MSG_FLUSHPOLICY;
c.pid = hdr->sadb_msg_pid;
c.seq = hdr->sadb_msg_seq;
return key_notify_sa(x, c);
case XFRM_MSG_FLUSHSA:
return key_notify_sa_flush(c);
+ case XFRM_MSG_NEWAE: /* not yet supported */
+ break;
default:
printk("pfkey: Unknown SA event %d\n", c->event);
break;
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);
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);
#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)
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;
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;
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 &&
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);
return NULL;
}
-static int pfkey_send_new_mapping(struct xfrm_state *x, xfrm_address_t *ipaddr, u16 sport)
+static int pfkey_send_new_mapping(struct xfrm_state *x, xfrm_address_t *ipaddr, __be16 sport)
{
struct sk_buff *skb;
struct sadb_msg *hdr;
if (!hdr)
goto out;
- down(&xfrm_cfg_sem);
+ mutex_lock(&xfrm_cfg_mutex);
err = pfkey_process(sk, skb, hdr);
- up(&xfrm_cfg_sem);
+ mutex_unlock(&xfrm_cfg_mutex);
out:
if (err && hdr && pfkey_error(hdr, err, sk) == 0)
git://git.onelab.eu / linux-2.6.git / blobdiff