PERFORCE change 47320 for review
Robert Watson
rwatson at FreeBSD.org
Sat Feb 21 10:28:33 PST 2004
http://perforce.freebsd.org/chv.cgi?CH=47320
Change 47320 by rwatson at rwatson_paprika on 2004/02/21 10:28:09
Pull socket-level entry points out of mac_net.c into mac_socket.c.
Pull inet-specific entry points out of mac_net into mac_inet.c.
Generic mbuf routines, bpf routines, and ifnet routines remain
in mac_net.c.
Affected files ...
.. //depot/projects/trustedbsd/mac/sys/security/mac/mac_inet.c#1 add
.. //depot/projects/trustedbsd/mac/sys/security/mac/mac_internal.h#19 edit
.. //depot/projects/trustedbsd/mac/sys/security/mac/mac_net.c#22 edit
.. //depot/projects/trustedbsd/mac/sys/security/mac/mac_socket.c#1 add
Differences ...
==== //depot/projects/trustedbsd/mac/sys/security/mac/mac_internal.h#19 (text+ko) ====
@@ -1,7 +1,7 @@
/*-
* Copyright (c) 1999, 2000, 2001, 2002 Robert N. M. Watson
* Copyright (c) 2001 Ilmar S. Habibulin
- * Copyright (c) 2001, 2002, 2003 Networks Associates Technology, Inc.
+ * Copyright (c) 2001, 2002, 2003, 2004 Networks Associates Technology, Inc.
* All rights reserved.
*
* This software was developed by Robert Watson and Ilmar Habibulin for the
@@ -62,7 +62,9 @@
extern struct mac_policy_list_head mac_policy_list;
extern struct mac_policy_list_head mac_static_policy_list;
extern int mac_late;
+extern int mac_enforce_network;
extern int mac_enforce_process;
+extern int mac_enforce_socket;
extern int mac_enforce_sysv;
extern int mac_enforce_vm;
#ifndef MAC_ALWAYS_LABEL_MBUF
@@ -118,6 +120,8 @@
int mac_internalize_cred_label(struct label *label, char *string);
void mac_relabel_cred(struct ucred *cred, struct label *newlabel);
+struct label *mac_mbuf_to_label(struct mbuf *m);
+
void mac_copy_pipe_label(struct label *src, struct label *dest);
int mac_externalize_pipe_label(struct label *label, char *elements,
char *outbuf, size_t outbuflen);
==== //depot/projects/trustedbsd/mac/sys/security/mac/mac_net.c#22 (text+ko) ====
@@ -1,7 +1,7 @@
/*-
* Copyright (c) 1999, 2000, 2001, 2002 Robert N. M. Watson
* Copyright (c) 2001 Ilmar S. Habibulin
- * Copyright (c) 2001, 2002, 2003 Networks Associates Technology, Inc.
+ * Copyright (c) 2001, 2002, 2003, 2004 Networks Associates Technology, Inc.
* All rights reserved.
*
* This software was developed by Robert Watson and Ilmar Habibulin for the
@@ -61,42 +61,30 @@
#include <net/if.h>
#include <net/if_var.h>
-#include <netinet/in.h>
-#include <netinet/in_pcb.h>
-#include <netinet/ip_var.h>
-
#include <security/mac/mac_internal.h>
-static int mac_enforce_network = 1;
+/*
+ * mac_enforce_network is used by IPv4 and IPv6 checks, and so must
+ * be non-static for now.
+ */
+int mac_enforce_network = 1;
SYSCTL_INT(_security_mac, OID_AUTO, enforce_network, CTLFLAG_RW,
&mac_enforce_network, 0, "Enforce MAC policy on network packets");
TUNABLE_INT("security.mac.enforce_network", &mac_enforce_network);
-static int mac_enforce_socket = 1;
-SYSCTL_INT(_security_mac, OID_AUTO, enforce_socket, CTLFLAG_RW,
- &mac_enforce_socket, 0, "Enforce MAC policy on socket operations");
-TUNABLE_INT("security.mac.enforce_socket", &mac_enforce_socket);
-
#ifdef MAC_DEBUG
-static unsigned int nmacmbufs, nmacifnets, nmacbpfdescs, nmacsockets,
- nmacinpcbs, nmacipqs;
+static unsigned int nmacifnets, nmacmbufs, nmacbpfdescs;
+SYSCTL_UINT(_security_mac_debug_counters, OID_AUTO, ifnets, CTLFLAG_RD,
+ &nmacifnets, 0, "number of ifnets in use");
SYSCTL_UINT(_security_mac_debug_counters, OID_AUTO, mbufs, CTLFLAG_RD,
&nmacmbufs, 0, "number of mbufs in use");
-SYSCTL_UINT(_security_mac_debug_counters, OID_AUTO, ifnets, CTLFLAG_RD,
- &nmacifnets, 0, "number of ifnets in use");
-SYSCTL_UINT(_security_mac_debug_counters, OID_AUTO, inpcbs, CTLFLAG_RD,
- &nmacinpcbs, 0, "number of inpcbs in use");
-SYSCTL_UINT(_security_mac_debug_counters, OID_AUTO, ipqs, CTLFLAG_RD,
- &nmacipqs, 0, "number of ipqs in use");
SYSCTL_UINT(_security_mac_debug_counters, OID_AUTO, bpfdescs, CTLFLAG_RD,
&nmacbpfdescs, 0, "number of bpfdescs in use");
-SYSCTL_UINT(_security_mac_debug_counters, OID_AUTO, sockets, CTLFLAG_RD,
- &nmacsockets, 0, "number of sockets in use");
#endif
-static struct label *
-mbuf_to_label(struct mbuf *mbuf)
+struct label *
+mac_mbuf_to_label(struct mbuf *mbuf)
{
struct m_tag *tag;
struct label *label;
@@ -143,66 +131,7 @@
ifp->if_label = mac_ifnet_label_alloc();
}
-static struct label *
-mac_inpcb_label_alloc(int flag)
-{
- struct label *label;
- int error;
-
- label = mac_labelzone_alloc(flag);
- if (label == NULL)
- return (NULL);
- MAC_CHECK(init_inpcb_label, label, flag);
- if (error) {
- MAC_PERFORM(destroy_inpcb_label, label);
- mac_labelzone_free(label);
- return (NULL);
- }
- MAC_DEBUG_COUNTER_INC(&nmacinpcbs);
- return (label);
-}
-
int
-mac_init_inpcb(struct inpcb *inp, int flag)
-{
-
- inp->inp_label = mac_inpcb_label_alloc(flag);
- if (inp->inp_label == NULL)
- return (ENOMEM);
- return (0);
-}
-
-static struct label *
-mac_ipq_label_alloc(int flag)
-{
- struct label *label;
- int error;
-
- label = mac_labelzone_alloc(flag);
- if (label == NULL)
- return (NULL);
-
- MAC_CHECK(init_ipq_label, label, flag);
- if (error) {
- MAC_PERFORM(destroy_ipq_label, label);
- mac_labelzone_free(label);
- return (NULL);
- }
- MAC_DEBUG_COUNTER_INC(&nmacipqs);
- return (label);
-}
-
-int
-mac_init_ipq(struct ipq *ipq, int flag)
-{
-
- ipq->ipq_label = mac_ipq_label_alloc(flag);
- if (ipq->ipq_label == NULL)
- return (ENOMEM);
- return (0);
-}
-
-int
mac_init_mbuf_tag(struct m_tag *tag, int flag)
{
struct label *label;
@@ -250,62 +179,6 @@
return (0);
}
-struct label *
-mac_socket_label_alloc(int flag)
-{
- struct label *label;
- int error;
-
- label = mac_labelzone_alloc(flag);
- if (label == NULL)
- return (NULL);
-
- MAC_CHECK(init_socket_label, label, flag);
- if (error) {
- MAC_PERFORM(destroy_socket_label, label);
- mac_labelzone_free(label);
- return (NULL);
- }
- MAC_DEBUG_COUNTER_INC(&nmacsockets);
- return (label);
-}
-
-static struct label *
-mac_socket_peer_label_alloc(int flag)
-{
- struct label *label;
- int error;
-
- label = mac_labelzone_alloc(flag);
- if (label == NULL)
- return (NULL);
-
- MAC_CHECK(init_socket_peer_label, label, flag);
- if (error) {
- MAC_PERFORM(destroy_socket_peer_label, label);
- mac_labelzone_free(label);
- return (NULL);
- }
- MAC_DEBUG_COUNTER_INC(&nmacsockets);
- return (label);
-}
-
-int
-mac_init_socket(struct socket *so, int flag)
-{
-
- so->so_label = mac_socket_label_alloc(flag);
- if (so->so_label == NULL)
- return (ENOMEM);
- so->so_peerlabel = mac_socket_peer_label_alloc(flag);
- if (so->so_peerlabel == NULL) {
- mac_socket_label_free(so->so_label);
- so->so_label = NULL;
- return (ENOMEM);
- }
- return (0);
-}
-
static void
mac_bpfdesc_label_free(struct label *label)
{
@@ -340,41 +213,7 @@
ifp->if_label = NULL;
}
-static void
-mac_inpcb_label_free(struct label *label)
-{
-
- MAC_PERFORM(destroy_inpcb_label, label);
- mac_labelzone_free(label);
- MAC_DEBUG_COUNTER_DEC(&nmacinpcbs);
-}
-
-void
-mac_destroy_inpcb(struct inpcb *inp)
-{
-
- mac_inpcb_label_free(inp->inp_label);
- inp->inp_label = NULL;
-}
-
-static void
-mac_ipq_label_free(struct label *label)
-{
-
- MAC_PERFORM(destroy_ipq_label, label);
- mac_labelzone_free(label);
- MAC_DEBUG_COUNTER_DEC(&nmacipqs);
-}
-
void
-mac_destroy_ipq(struct ipq *ipq)
-{
-
- mac_ipq_label_free(ipq->ipq_label);
- ipq->ipq_label = NULL;
-}
-
-void
mac_destroy_mbuf_tag(struct m_tag *tag)
{
struct label *label;
@@ -387,34 +226,6 @@
}
void
-mac_socket_label_free(struct label *label)
-{
-
- MAC_PERFORM(destroy_socket_label, label);
- mac_labelzone_free(label);
- MAC_DEBUG_COUNTER_DEC(&nmacsockets);
-}
-
-static void
-mac_socket_peer_label_free(struct label *label)
-{
-
- MAC_PERFORM(destroy_socket_peer_label, label);
- mac_labelzone_free(label);
- MAC_DEBUG_COUNTER_DEC(&nmacsockets);
-}
-
-void
-mac_destroy_socket(struct socket *socket)
-{
-
- mac_socket_label_free(socket->so_label);
- socket->so_label = NULL;
- mac_socket_peer_label_free(socket->so_peerlabel);
- socket->so_peerlabel = NULL;
-}
-
-void
mac_copy_mbuf_tag(struct m_tag *src, struct m_tag *dest)
{
struct label *src_label, *dest_label;
@@ -429,13 +240,6 @@
MAC_PERFORM(copy_mbuf_label, src_label, dest_label);
}
-void
-mac_copy_socket_label(struct label *src, struct label *dest)
-{
-
- MAC_PERFORM(copy_socket_label, src, dest);
-}
-
static int
mac_externalize_ifnet_label(struct label *label, char *elements,
char *outbuf, size_t outbuflen)
@@ -447,29 +251,7 @@
return (error);
}
-int
-mac_externalize_socket_label(struct label *label, char *elements,
- char *outbuf, size_t outbuflen)
-{
- int error;
-
- MAC_EXTERNALIZE(socket, label, elements, outbuf, outbuflen);
-
- return (error);
-}
-
static int
-mac_externalize_socket_peer_label(struct label *label, char *elements,
- char *outbuf, size_t outbuflen)
-{
- int error;
-
- MAC_EXTERNALIZE(socket_peer, label, elements, outbuf, outbuflen);
-
- return (error);
-}
-
-static int
mac_internalize_ifnet_label(struct label *label, char *string)
{
int error;
@@ -479,16 +261,6 @@
return (error);
}
-int
-mac_internalize_socket_label(struct label *label, char *string)
-{
- int error;
-
- MAC_INTERNALIZE(socket, label, string);
-
- return (error);
-}
-
void
mac_create_ifnet(struct ifnet *ifnet)
{
@@ -497,14 +269,6 @@
}
void
-mac_create_inpcb_from_socket(struct socket *so, struct inpcb *inp)
-{
-
- MAC_PERFORM(create_inpcb_from_socket, so, so->so_label, inp,
- inp->inp_label);
-}
-
-void
mac_create_bpfdesc(struct ucred *cred, struct bpf_d *bpf_d)
{
@@ -512,100 +276,12 @@
}
void
-mac_create_socket(struct ucred *cred, struct socket *socket)
-{
-
- MAC_PERFORM(create_socket, cred, socket, socket->so_label);
-}
-
-void
-mac_create_socket_from_socket(struct socket *oldsocket,
- struct socket *newsocket)
-{
-
- MAC_PERFORM(create_socket_from_socket, oldsocket, oldsocket->so_label,
- newsocket, newsocket->so_label);
-}
-
-static void
-mac_relabel_socket(struct ucred *cred, struct socket *socket,
- struct label *newlabel)
-{
-
- MAC_PERFORM(relabel_socket, cred, socket, socket->so_label, newlabel);
-}
-
-void
-mac_set_socket_peer_from_mbuf(struct mbuf *mbuf, struct socket *socket)
-{
- struct label *label;
-
- label = mbuf_to_label(mbuf);
-
- MAC_PERFORM(set_socket_peer_from_mbuf, mbuf, label, socket,
- socket->so_peerlabel);
-}
-
-void
-mac_set_socket_peer_from_socket(struct socket *oldsocket,
- struct socket *newsocket)
-{
-
- MAC_PERFORM(set_socket_peer_from_socket, oldsocket,
- oldsocket->so_label, newsocket, newsocket->so_peerlabel);
-}
-
-void
-mac_create_datagram_from_ipq(struct ipq *ipq, struct mbuf *datagram)
-{
- struct label *label;
-
- label = mbuf_to_label(datagram);
-
- MAC_PERFORM(create_datagram_from_ipq, ipq, ipq->ipq_label,
- datagram, label);
-}
-
-void
-mac_create_fragment(struct mbuf *datagram, struct mbuf *fragment)
-{
- struct label *datagramlabel, *fragmentlabel;
-
- datagramlabel = mbuf_to_label(datagram);
- fragmentlabel = mbuf_to_label(fragment);
-
- MAC_PERFORM(create_fragment, datagram, datagramlabel, fragment,
- fragmentlabel);
-}
-
-void
-mac_create_ipq(struct mbuf *fragment, struct ipq *ipq)
-{
- struct label *label;
-
- label = mbuf_to_label(fragment);
-
- MAC_PERFORM(create_ipq, fragment, label, ipq, ipq->ipq_label);
-}
-
-void
-mac_create_mbuf_from_inpcb(struct inpcb *inp, struct mbuf *m)
-{
- struct label *mlabel;
-
- INP_LOCK_ASSERT(inp);
- mlabel = mbuf_to_label(m);
-
- MAC_PERFORM(create_mbuf_from_inpcb, inp, inp->inp_label, m, mlabel);
-}
-
-void
mac_create_mbuf_from_mbuf(struct mbuf *oldmbuf, struct mbuf *newmbuf)
{
struct label *oldmbuflabel, *newmbuflabel;
- oldmbuflabel = mbuf_to_label(oldmbuf);
- newmbuflabel = mbuf_to_label(newmbuf);
+ oldmbuflabel = mac_mbuf_to_label(oldmbuf);
+ newmbuflabel = mac_mbuf_to_label(newmbuf);
MAC_PERFORM(create_mbuf_from_mbuf, oldmbuf, oldmbuflabel, newmbuf,
newmbuflabel);
@@ -616,7 +292,7 @@
{
struct label *label;
- label = mbuf_to_label(mbuf);
+ label = mac_mbuf_to_label(mbuf);
MAC_PERFORM(create_mbuf_from_bpfdesc, bpf_d, bpf_d->bd_label, mbuf,
label);
@@ -627,7 +303,7 @@
{
struct label *label;
- label = mbuf_to_label(mbuf);
+ label = mac_mbuf_to_label(mbuf);
MAC_PERFORM(create_mbuf_linklayer, ifnet, ifnet->if_label, mbuf,
label);
@@ -638,7 +314,7 @@
{
struct label *label;
- label = mbuf_to_label(mbuf);
+ label = mac_mbuf_to_label(mbuf);
MAC_PERFORM(create_mbuf_from_ifnet, ifnet, ifnet->if_label, mbuf,
label);
@@ -650,8 +326,8 @@
{
struct label *oldmbuflabel, *newmbuflabel;
- oldmbuflabel = mbuf_to_label(oldmbuf);
- newmbuflabel = mbuf_to_label(newmbuf);
+ oldmbuflabel = mac_mbuf_to_label(oldmbuf);
+ newmbuflabel = mac_mbuf_to_label(newmbuf);
MAC_PERFORM(create_mbuf_multicast_encap, oldmbuf, oldmbuflabel,
ifnet, ifnet->if_label, newmbuf, newmbuflabel);
@@ -662,88 +338,14 @@
{
struct label *oldmbuflabel, *newmbuflabel;
- oldmbuflabel = mbuf_to_label(oldmbuf);
- newmbuflabel = mbuf_to_label(newmbuf);
+ oldmbuflabel = mac_mbuf_to_label(oldmbuf);
+ newmbuflabel = mac_mbuf_to_label(newmbuf);
MAC_PERFORM(create_mbuf_netlayer, oldmbuf, oldmbuflabel, newmbuf,
newmbuflabel);
}
int
-mac_fragment_match(struct mbuf *fragment, struct ipq *ipq)
-{
- struct label *label;
- int result;
-
- label = mbuf_to_label(fragment);
-
- result = 1;
- MAC_BOOLEAN(fragment_match, &&, fragment, label, ipq,
- ipq->ipq_label);
-
- return (result);
-}
-
-void
-mac_reflect_mbuf_icmp(struct mbuf *m)
-{
- struct label *label;
-
- label = mbuf_to_label(m);
-
- MAC_PERFORM(reflect_mbuf_icmp, m, label);
-}
-void
-mac_reflect_mbuf_tcp(struct mbuf *m)
-{
- struct label *label;
-
- label = mbuf_to_label(m);
-
- MAC_PERFORM(reflect_mbuf_tcp, m, label);
-}
-
-void
-mac_update_ipq(struct mbuf *fragment, struct ipq *ipq)
-{
- struct label *label;
-
- label = mbuf_to_label(fragment);
-
- MAC_PERFORM(update_ipq, fragment, label, ipq, ipq->ipq_label);
-}
-
-int
-mac_update_mbuf_from_cipso(struct mbuf *m, char *cp, int *code)
-{
- struct label *label, *ifnetlabel;
- int error;
-
- label = mbuf_to_label(m);
-
- if (m->m_pkthdr.rcvif != NULL)
- ifnetlabel = m->m_pkthdr.rcvif->if_label;
- else
- ifnetlabel = NULL;
-
- MAC_CHECK(update_mbuf_from_cipso, m, label, m->m_pkthdr.rcvif,
- ifnetlabel, cp, code);
-
- return (error);
-}
-
-void
-mac_create_mbuf_from_socket(struct socket *socket, struct mbuf *mbuf)
-{
- struct label *label;
-
- label = mbuf_to_label(mbuf);
-
- MAC_PERFORM(create_mbuf_from_socket, socket, socket->so_label, mbuf,
- label);
-}
-
-int
mac_check_bpfdesc_receive(struct bpf_d *bpf_d, struct ifnet *ifnet)
{
int error;
@@ -768,7 +370,7 @@
if (!mac_enforce_network)
return (0);
- label = mbuf_to_label(mbuf);
+ label = mac_mbuf_to_label(mbuf);
MAC_CHECK(check_ifnet_transmit, ifnet, ifnet->if_label, mbuf,
label);
@@ -777,134 +379,6 @@
}
int
-mac_check_inpcb_deliver(struct inpcb *inp, struct mbuf *m)
-{
- struct label *label;
- int error;
-
- M_ASSERTPKTHDR(m);
-
- if (!mac_enforce_socket)
- return (0);
-
- label = mbuf_to_label(m);
-
- MAC_CHECK(check_inpcb_deliver, inp, inp->inp_label, m, label);
-
- return (error);
-}
-
-int
-mac_check_socket_bind(struct ucred *ucred, struct socket *socket,
- struct sockaddr *sockaddr)
-{
- int error;
-
- if (!mac_enforce_socket)
- return (0);
-
- MAC_CHECK(check_socket_bind, ucred, socket, socket->so_label,
- sockaddr);
-
- return (error);
-}
-
-int
-mac_check_socket_connect(struct ucred *cred, struct socket *socket,
- struct sockaddr *sockaddr)
-{
- int error;
-
- if (!mac_enforce_socket)
- return (0);
-
- MAC_CHECK(check_socket_connect, cred, socket, socket->so_label,
- sockaddr);
-
- return (error);
-}
-
-int
-mac_check_socket_deliver(struct socket *socket, struct mbuf *mbuf)
-{
- struct label *label;
- int error;
-
- if (!mac_enforce_socket)
- return (0);
-
- label = mbuf_to_label(mbuf);
-
- MAC_CHECK(check_socket_deliver, socket, socket->so_label, mbuf,
- label);
-
- return (error);
-}
-
-int
-mac_check_socket_listen(struct ucred *cred, struct socket *socket)
-{
- int error;
-
- if (!mac_enforce_socket)
- return (0);
-
- MAC_CHECK(check_socket_listen, cred, socket, socket->so_label);
- return (error);
-}
-
-int
-mac_check_socket_receive(struct ucred *cred, struct socket *so)
-{
- int error;
-
- if (!mac_enforce_socket)
- return (0);
-
- MAC_CHECK(check_socket_receive, cred, so, so->so_label);
-
- return (error);
-}
-
-static int
-mac_check_socket_relabel(struct ucred *cred, struct socket *socket,
- struct label *newlabel)
-{
- int error;
-
- MAC_CHECK(check_socket_relabel, cred, socket, socket->so_label,
- newlabel);
-
- return (error);
-}
-
-int
-mac_check_socket_send(struct ucred *cred, struct socket *so)
-{
- int error;
-
- if (!mac_enforce_socket)
- return (0);
-
- MAC_CHECK(check_socket_send, cred, so, so->so_label);
-
- return (error);
-}
-
-int
-mac_check_socket_visible(struct ucred *cred, struct socket *socket)
-{
- int error;
-
- if (!mac_enforce_socket)
- return (0);
-
- MAC_CHECK(check_socket_visible, cred, socket, socket->so_label);
-
- return (error);
-}
-
-int
mac_ioctl_ifnet_get(struct ucred *cred, struct ifreq *ifr,
struct ifnet *ifnet)
{
@@ -994,127 +468,3 @@
mac_ifnet_label_free(intlabel);
return (0);
}
-
-void
-mac_inpcb_sosetlabel(struct socket *so, struct inpcb *inp)
-{
-
- /* XXX: assert socket lock. */
- INP_LOCK_ASSERT(inp);
- MAC_PERFORM(inpcb_sosetlabel, so, so->so_label, inp, inp->inp_label);
-}
-
-int
-mac_socket_label_set(struct ucred *cred, struct socket *so,
- struct label *label)
-{
- int error;
-
- error = mac_check_socket_relabel(cred, so, label);
- if (error)
- return (error);
-
- mac_relabel_socket(cred, so, label);
-
- /*
- * If the protocol has expressed interest in socket layer changes,
- * such as if it needs to propagate changes to a cached pcb
- * label from the socket, notify it of the label change while
- * holding the socket lock.
- */
- if (so->so_proto->pr_usrreqs->pru_sosetlabel != NULL)
- (so->so_proto->pr_usrreqs->pru_sosetlabel)(so);
-
- return (0);
-}
-
-int
-mac_setsockopt_label(struct ucred *cred, struct socket *so, struct mac *mac)
-{
- struct label *intlabel;
- char *buffer;
- int error;
-
- error = mac_check_structmac_consistent(mac);
- if (error)
- return (error);
-
- buffer = malloc(mac->m_buflen, M_MACTEMP, M_WAITOK);
- error = copyinstr(mac->m_string, buffer, mac->m_buflen, NULL);
- if (error) {
- free(buffer, M_MACTEMP);
- return (error);
- }
-
- intlabel = mac_socket_label_alloc(M_WAITOK);
- error = mac_internalize_socket_label(intlabel, buffer);
- free(buffer, M_MACTEMP);
- if (error)
- goto out;
-
- /* XXX: Socket lock here. */
- error = mac_socket_label_set(cred, so, intlabel);
- /* XXX: Socket unlock here. */
-out:
- mac_socket_label_free(intlabel);
- return (error);
-}
-
-int
-mac_getsockopt_label(struct ucred *cred, struct socket *so, struct mac *mac)
-{
- char *buffer, *elements;
- int error;
-
- error = mac_check_structmac_consistent(mac);
- if (error)
- return (error);
-
- elements = malloc(mac->m_buflen, M_MACTEMP, M_WAITOK);
- error = copyinstr(mac->m_string, elements, mac->m_buflen, NULL);
- if (error) {
- free(elements, M_MACTEMP);
- return (error);
- }
-
- buffer = malloc(mac->m_buflen, M_MACTEMP, M_WAITOK | M_ZERO);
- error = mac_externalize_socket_label(so->so_label, elements,
- buffer, mac->m_buflen);
- if (error == 0)
- error = copyout(buffer, mac->m_string, strlen(buffer)+1);
-
- free(buffer, M_MACTEMP);
- free(elements, M_MACTEMP);
-
- return (error);
-}
-
-int
-mac_getsockopt_peerlabel(struct ucred *cred, struct socket *so,
- struct mac *mac)
-{
- char *elements, *buffer;
- int error;
-
- error = mac_check_structmac_consistent(mac);
- if (error)
- return (error);
-
- elements = malloc(mac->m_buflen, M_MACTEMP, M_WAITOK);
- error = copyinstr(mac->m_string, elements, mac->m_buflen, NULL);
- if (error) {
- free(elements, M_MACTEMP);
- return (error);
- }
-
- buffer = malloc(mac->m_buflen, M_MACTEMP, M_WAITOK | M_ZERO);
- error = mac_externalize_socket_peer_label(so->so_peerlabel,
- elements, buffer, mac->m_buflen);
- if (error == 0)
- error = copyout(buffer, mac->m_string, strlen(buffer)+1);
-
- free(buffer, M_MACTEMP);
- free(elements, M_MACTEMP);
-
- return (error);
-}
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