xnu-6153.41.3.tar.gz

[apple/xnu.git] / bsd / net / raw_usrreq.c

diff --git a/bsd/net/raw_usrreq.c b/bsd/net/raw_usrreq.c
index 657f47d0618619c153f80dfc9d96946c86b90495..eb8521ed7738ae2270fd42ac5e97b64b8fda542b 100644 (file)
--- a/bsd/net/raw_usrreq.c
+++ b/bsd/net/raw_usrreq.c
@@ -2,7 +2,7 @@
  * Copyright (c) 2000-2012 Apple Inc. All rights reserved.
  *
  * @APPLE_OSREFERENCE_LICENSE_HEADER_START@
  * Copyright (c) 2000-2012 Apple Inc. All rights reserved.
  *
  * @APPLE_OSREFERENCE_LICENSE_HEADER_START@

- * 
+ *

  * This file contains Original Code and/or Modifications of Original Code
  * as defined in and that are subject to the Apple Public Source License
  * Version 2.0 (the 'License'). You may not use this file except in
  * This file contains Original Code and/or Modifications of Original Code
  * as defined in and that are subject to the Apple Public Source License
  * Version 2.0 (the 'License'). You may not use this file except in


@@ -11,10 +11,10 @@
  * unlawful or unlicensed copies of an Apple operating system, or to
  * circumvent, violate, or enable the circumvention or violation of, any
  * terms of an Apple operating system software license agreement.
  * unlawful or unlicensed copies of an Apple operating system, or to
  * circumvent, violate, or enable the circumvention or violation of, any
  * terms of an Apple operating system software license agreement.

- * 
+ *

  * Please obtain a copy of the License at
  * http://www.opensource.apple.com/apsl/ and read it before using this file.
  * Please obtain a copy of the License at
  * http://www.opensource.apple.com/apsl/ and read it before using this file.

- * 
+ *

  * The Original Code and all software distributed under the License are
  * distributed on an 'AS IS' basis, WITHOUT WARRANTY OF ANY KIND, EITHER
  * EXPRESS OR IMPLIED, AND APPLE HEREBY DISCLAIMS ALL SUCH WARRANTIES,
  * The Original Code and all software distributed under the License are
  * distributed on an 'AS IS' basis, WITHOUT WARRANTY OF ANY KIND, EITHER
  * EXPRESS OR IMPLIED, AND APPLE HEREBY DISCLAIMS ALL SUCH WARRANTIES,


@@ -22,7 +22,7 @@
  * FITNESS FOR A PARTICULAR PURPOSE, QUIET ENJOYMENT OR NON-INFRINGEMENT.
  * Please see the License for the specific language governing rights and
  * limitations under the License.
  * FITNESS FOR A PARTICULAR PURPOSE, QUIET ENJOYMENT OR NON-INFRINGEMENT.
  * Please see the License for the specific language governing rights and
  * limitations under the License.

- * 
+ *

  * @APPLE_OSREFERENCE_LICENSE_HEADER_END@
  */
 /*
  * @APPLE_OSREFERENCE_LICENSE_HEADER_END@
  */
 /*


@@ -73,11 +73,11 @@
 
 #include <net/raw_cb.h>
 
 
 #include <net/raw_cb.h>
 

-decl_lck_mtx_data(,raw_mtx_data);      /*### global raw cb mutex for now */
-lck_mtx_t      *raw_mtx = &raw_mtx_data;
-lck_attr_t     *raw_mtx_attr;
-lck_grp_t      *raw_mtx_grp;
-lck_grp_attr_t         *raw_mtx_grp_attr;
+decl_lck_mtx_data(, raw_mtx_data);       /*### global raw cb mutex for now */
+lck_mtx_t       *raw_mtx = &raw_mtx_data;
+lck_attr_t      *raw_mtx_attr;
+lck_grp_t       *raw_mtx_grp;
+lck_grp_attr_t  *raw_mtx_grp_attr;

 /*
  * Initialize raw connection block q.
  */
 /*
  * Initialize raw connection block q.
  */


@@ -111,7 +111,7 @@ raw_init(struct protosw *pp, struct domain *dp)
  */
 void
 raw_input(struct mbuf *m0, struct sockproto *proto, struct sockaddr *src,
  */
 void
 raw_input(struct mbuf *m0, struct sockproto *proto, struct sockaddr *src,

-         struct sockaddr *dst)
+    struct sockaddr *dst)

 {
        struct rawcb *rp;
        struct mbuf *m = m0;
 {
        struct rawcb *rp;
        struct mbuf *m = m0;


@@ -119,18 +119,20 @@ raw_input(struct mbuf *m0, struct sockproto *proto, struct sockaddr *src,
        struct socket *last;
        int error;
 
        struct socket *last;
        int error;
 

-//####LD raw_input is called from many places, input & output path. We have to assume the 
+//####LD raw_input is called from many places, input & output path. We have to assume the

 //####LD socket we'll find and need to append to is unlocked.
 //####LD calls from the output (locked) path need to make sure the socket is not locked when
 //####LD we call in raw_input
        last = NULL;
        lck_mtx_lock(raw_mtx);
        LIST_FOREACH(rp, &rawcb_list, list) {
 //####LD socket we'll find and need to append to is unlocked.
 //####LD calls from the output (locked) path need to make sure the socket is not locked when
 //####LD we call in raw_input
        last = NULL;
        lck_mtx_lock(raw_mtx);
        LIST_FOREACH(rp, &rawcb_list, list) {

-               if (rp->rcb_proto.sp_family != proto->sp_family)
+               if (rp->rcb_proto.sp_family != proto->sp_family) {

                        continue;
                        continue;

-               if (rp->rcb_proto.sp_protocol  &&
-                   rp->rcb_proto.sp_protocol != proto->sp_protocol)
+               }
+               if (rp->rcb_proto.sp_protocol &&
+                   rp->rcb_proto.sp_protocol != proto->sp_protocol) {

                        continue;
                        continue;

+               }

                /*
                 * We assume the lower level routines have
                 * placed the address in a canonical format
                /*
                 * We assume the lower level routines have
                 * placed the address in a canonical format


@@ -139,12 +141,14 @@ raw_input(struct mbuf *m0, struct sockproto *proto, struct sockaddr *src,
                 * Note that if the lengths are not the same
                 * the comparison will fail at the first byte.
                 */
                 * Note that if the lengths are not the same
                 * the comparison will fail at the first byte.
                 */

-#define        equal(a1, a2) \
+#define equal(a1, a2) \

   (bcmp((caddr_t)(a1), (caddr_t)(a2), a1->sa_len) == 0)
   (bcmp((caddr_t)(a1), (caddr_t)(a2), a1->sa_len) == 0)

-               if (rp->rcb_laddr && !equal(rp->rcb_laddr, dst))
+               if (rp->rcb_laddr && !equal(rp->rcb_laddr, dst)) {

                        continue;
                        continue;

-               if (rp->rcb_faddr && !equal(rp->rcb_faddr, src))
+               }
+               if (rp->rcb_faddr && !equal(rp->rcb_faddr, src)) {

                        continue;
                        continue;

+               }

                if (last) {
                        struct mbuf *n;
                        n = m_copy(m, 0, (int)M_COPYALL);
                if (last) {
                        struct mbuf *n;
                        n = m_copy(m, 0, (int)M_COPYALL);


@@ -168,18 +172,20 @@ raw_input(struct mbuf *m0, struct sockproto *proto, struct sockaddr *src,
                        sockets++;
                }
                socket_unlock(last, 1);
                        sockets++;
                }
                socket_unlock(last, 1);

-       } else
+       } else {

                m_freem(m);
                m_freem(m);

+       }

        lck_mtx_unlock(raw_mtx);
 }
 
 /*ARGSUSED*/
 void
        lck_mtx_unlock(raw_mtx);
 }
 
 /*ARGSUSED*/
 void

-raw_ctlinput(int cmd, __unused struct sockaddr *arg, __unused void *dummy)
+raw_ctlinput(int cmd, __unused struct sockaddr *arg, __unused void *dummy,
+    __unused struct ifnet *ifp)

 {
 {

-
-       if (cmd < 0 || cmd >= PRC_NCMDS)
+       if (cmd < 0 || cmd >= PRC_NCMDS) {

                return;
                return;

+       }

        /* INCOMPLETE */
 }
 
        /* INCOMPLETE */
 }
 


@@ -189,14 +195,16 @@ raw_uabort(struct socket *so)
        struct rawcb *rp = sotorawcb(so);
 
        lck_mtx_t * mutex_held;
        struct rawcb *rp = sotorawcb(so);
 
        lck_mtx_t * mutex_held;

-       if (so->so_proto->pr_getlock != NULL)
+       if (so->so_proto->pr_getlock != NULL) {

                mutex_held = (*so->so_proto->pr_getlock)(so, 0);
                mutex_held = (*so->so_proto->pr_getlock)(so, 0);

-       else
+       } else {

                mutex_held = so->so_proto->pr_domain->dom_mtx;
                mutex_held = so->so_proto->pr_domain->dom_mtx;

-       lck_mtx_assert(mutex_held, LCK_MTX_ASSERT_OWNED);
+       }
+       LCK_MTX_ASSERT(mutex_held, LCK_MTX_ASSERT_OWNED);

 
 

-       if (rp == 0)
+       if (rp == 0) {

                return EINVAL;
                return EINVAL;

+       }

        raw_disconnect(rp);
        sofree(so);
        soisdisconnected(so);
        raw_disconnect(rp);
        sofree(so);
        soisdisconnected(so);


@@ -210,10 +218,12 @@ raw_uattach(struct socket *so, int proto, __unused struct proc *p)
 {
        struct rawcb *rp = sotorawcb(so);
 
 {
        struct rawcb *rp = sotorawcb(so);
 

-       if (rp == 0)
+       if (rp == 0) {

                return EINVAL;
                return EINVAL;

-               if ((so->so_state & SS_PRIV) == 0)
-                       return (EPERM);
+       }
+       if ((so->so_state & SS_PRIV) == 0) {
+               return EPERM;
+       }

        return raw_attach(so, proto);
 }
 
        return raw_attach(so, proto);
 }
 


@@ -238,13 +248,15 @@ raw_udetach(struct socket *so)
        struct rawcb *rp = sotorawcb(so);
 
        lck_mtx_t * mutex_held;
        struct rawcb *rp = sotorawcb(so);
 
        lck_mtx_t * mutex_held;

-       if (so->so_proto->pr_getlock != NULL)
+       if (so->so_proto->pr_getlock != NULL) {

                mutex_held = (*so->so_proto->pr_getlock)(so, 0);
                mutex_held = (*so->so_proto->pr_getlock)(so, 0);

-       else
+       } else {

                mutex_held = so->so_proto->pr_domain->dom_mtx;
                mutex_held = so->so_proto->pr_domain->dom_mtx;

-       lck_mtx_assert(mutex_held, LCK_MTX_ASSERT_OWNED);
-       if (rp == 0)
+       }
+       LCK_MTX_ASSERT(mutex_held, LCK_MTX_ASSERT_OWNED);
+       if (rp == 0) {

                return EINVAL;
                return EINVAL;

+       }

 
        raw_detach(rp);
        return 0;
 
        raw_detach(rp);
        return 0;


@@ -255,8 +267,9 @@ raw_udisconnect(struct socket *so)
 {
        struct rawcb *rp = sotorawcb(so);
 
 {
        struct rawcb *rp = sotorawcb(so);
 

-       if (rp == 0)
+       if (rp == 0) {

                return EINVAL;
                return EINVAL;

+       }

        if (rp->rcb_faddr == 0) {
                return ENOTCONN;
        }
        if (rp->rcb_faddr == 0) {
                return ENOTCONN;
        }


@@ -272,8 +285,9 @@ raw_upeeraddr(struct socket *so, struct sockaddr **nam)
 {
        struct rawcb *rp = sotorawcb(so);
 
 {
        struct rawcb *rp = sotorawcb(so);
 

-       if (rp == 0)
+       if (rp == 0) {

                return EINVAL;
                return EINVAL;

+       }

        if (rp->rcb_faddr == 0) {
                return ENOTCONN;
        }
        if (rp->rcb_faddr == 0) {
                return ENOTCONN;
        }


@@ -286,17 +300,18 @@ raw_upeeraddr(struct socket *so, struct sockaddr **nam)
 
 static int
 raw_usend(struct socket *so, int flags, struct mbuf *m,
 
 static int
 raw_usend(struct socket *so, int flags, struct mbuf *m,

-         struct sockaddr *nam, struct mbuf *control, __unused struct proc *p)
+    struct sockaddr *nam, struct mbuf *control, __unused struct proc *p)

 {
        int error;
        struct rawcb *rp = sotorawcb(so);
 
        lck_mtx_t * mutex_held;
 {
        int error;
        struct rawcb *rp = sotorawcb(so);
 
        lck_mtx_t * mutex_held;

-       if (so->so_proto->pr_getlock != NULL)
+       if (so->so_proto->pr_getlock != NULL) {

                mutex_held = (*so->so_proto->pr_getlock)(so, 0);
                mutex_held = (*so->so_proto->pr_getlock)(so, 0);

-       else
+       } else {

                mutex_held = so->so_proto->pr_domain->dom_mtx;
                mutex_held = so->so_proto->pr_domain->dom_mtx;

-       lck_mtx_assert(mutex_held, LCK_MTX_ASSERT_OWNED);
+       }
+       LCK_MTX_ASSERT(mutex_held, LCK_MTX_ASSERT_OWNED);

 
        if (rp == 0) {
                error = EINVAL;
 
        if (rp == 0) {
                error = EINVAL;


@@ -329,12 +344,14 @@ raw_usend(struct socket *so, int flags, struct mbuf *m,
        }
        error = (*so->so_proto->pr_output)(m, so);
        m = NULL;
        }
        error = (*so->so_proto->pr_output)(m, so);
        m = NULL;

-       if (nam)
+       if (nam) {

                rp->rcb_faddr = NULL;
                rp->rcb_faddr = NULL;

+       }

 release:
 release:

-       if (m != NULL)
+       if (m != NULL) {

                m_freem(m);
                m_freem(m);

-       return (error);
+       }
+       return error;

 }
 
 /* pru_sense is null */
 }
 
 /* pru_sense is null */


@@ -344,14 +361,16 @@ raw_ushutdown(struct socket *so)
 {
        struct rawcb *rp = sotorawcb(so);
        lck_mtx_t * mutex_held;
 {
        struct rawcb *rp = sotorawcb(so);
        lck_mtx_t * mutex_held;

-       if (so->so_proto->pr_getlock != NULL)
+       if (so->so_proto->pr_getlock != NULL) {

                mutex_held = (*so->so_proto->pr_getlock)(so, 0);
                mutex_held = (*so->so_proto->pr_getlock)(so, 0);

-       else
+       } else {

                mutex_held = so->so_proto->pr_domain->dom_mtx;
                mutex_held = so->so_proto->pr_domain->dom_mtx;

-       lck_mtx_assert(mutex_held, LCK_MTX_ASSERT_OWNED);
+       }
+       LCK_MTX_ASSERT(mutex_held, LCK_MTX_ASSERT_OWNED);

 
 

-       if (rp == 0)
+       if (rp == 0) {

                return EINVAL;
                return EINVAL;

+       }

        socantsendmore(so);
        return 0;
 }
        socantsendmore(so);
        return 0;
 }


@@ -361,25 +380,27 @@ raw_usockaddr(struct socket *so, struct sockaddr **nam)
 {
        struct rawcb *rp = sotorawcb(so);
 
 {
        struct rawcb *rp = sotorawcb(so);
 

-       if (rp == 0)
+       if (rp == 0) {

                return EINVAL;
                return EINVAL;

-       if (rp->rcb_laddr == 0)
+       }
+       if (rp->rcb_laddr == 0) {

                return EINVAL;
                return EINVAL;

+       }

        *nam = dup_sockaddr(rp->rcb_laddr, 1);
        return 0;
 }
 
 struct pr_usrreqs raw_usrreqs = {
        *nam = dup_sockaddr(rp->rcb_laddr, 1);
        return 0;
 }
 
 struct pr_usrreqs raw_usrreqs = {

-       .pru_abort =            raw_uabort,
-       .pru_attach =           raw_uattach,
-       .pru_bind =             raw_ubind,
-       .pru_connect =          raw_uconnect,
-       .pru_detach =           raw_udetach,
-       .pru_disconnect =       raw_udisconnect,
-       .pru_peeraddr =         raw_upeeraddr,
-       .pru_send =             raw_usend,
-       .pru_shutdown =         raw_ushutdown,
-       .pru_sockaddr =         raw_usockaddr,
-       .pru_sosend =           sosend,
-       .pru_soreceive =        soreceive,
+       .pru_abort =            raw_uabort,
+       .pru_attach =           raw_uattach,
+       .pru_bind =             raw_ubind,
+       .pru_connect =          raw_uconnect,
+       .pru_detach =           raw_udetach,
+       .pru_disconnect =       raw_udisconnect,
+       .pru_peeraddr =         raw_upeeraddr,
+       .pru_send =             raw_usend,
+       .pru_shutdown =         raw_ushutdown,
+       .pru_sockaddr =         raw_usockaddr,
+       .pru_sosend =           sosend,
+       .pru_soreceive =        soreceive,

 };
 };