/*
- * Copyright (c) 2001-2002 Apple Computer, Inc. All rights reserved.
+ * Copyright (c) 2001-2004 Apple Computer, Inc. All rights reserved.
*
- * @APPLE_LICENSE_HEADER_START@
- *
- * Copyright (c) 1999-2003 Apple Computer, 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
- * compliance with the License. Please obtain a copy of the License at
- * http://www.opensource.apple.com/apsl/ and read it before using this
- * file.
+ * compliance with the License. The rights granted to you under the License
+ * may not be used to create, or enable the creation or redistribution of,
+ * 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.
*
* The Original Code and all software distributed under the License are
* distributed on an 'AS IS' basis, WITHOUT WARRANTY OF ANY KIND, EITHER
* Please see the License for the specific language governing rights and
* limitations under the License.
*
- * @APPLE_LICENSE_HEADER_END@
+ * @APPLE_OSREFERENCE_LICENSE_HEADER_END@
*/
/*
#include <sys/kernel.h>
#include <sys/conf.h>
#include <sys/ioctl.h>
-#include <sys/proc.h>
-#include <sys/mount.h>
+#include <sys/proc_internal.h>
+#include <sys/mount_internal.h>
#include <sys/mbuf.h>
#include <sys/filedesc.h>
-#include <sys/vnode.h>
+#include <sys/vnode_internal.h>
#include <sys/malloc.h>
#include <sys/socket.h>
+#include <sys/socketvar.h>
#include <sys/reboot.h>
#include <net/if.h>
#include <net/if_dl.h>
#include <netinet/in.h>
#include <netinet/if_ether.h>
#include <netinet/dhcp_options.h>
+#include <pexpert/pexpert.h>
+#include <kern/kern_types.h>
+#include <kern/kalloc.h>
//#include <libkern/libkern.h>
-
-extern dev_t rootdev; /* device of the root */
extern struct filedesc filedesc0;
+extern int strncmp(const char *,const char *, size_t);
+extern unsigned long strtoul(const char *, char **, int);
extern char * strchr(const char *str, int ch);
-extern int nfs_mountroot(); /* nfs_vfsops.c */
+extern int nfs_mountroot(void); /* nfs_vfsops.c */
extern int (*mountroot)(void);
extern unsigned char rootdevice[];
static struct netboot_info * S_netboot_info_p;
void *
-IOBSDRegistryEntryForDeviceTree(char * path);
+IOBSDRegistryEntryForDeviceTree(const char * path);
void
IOBSDRegistryEntryRelease(void * entry);
const void *
-IOBSDRegistryEntryGetData(void * entry, char * property_name,
+IOBSDRegistryEntryGetData(void * entry, const char * property_name,
int * packet_length);
extern int vndevice_root_image(const char * path, char devname[],
dev_t * dev_p);
extern int di_root_image(const char *path, char devname[], dev_t *dev_p);
-
-static boolean_t path_getfile __P((char * image_path,
- struct sockaddr_in * sin_p,
- char * serv_name, char * pathname));
-
#define BOOTP_RESPONSE "bootp-response"
#define BSDP_RESPONSE "bsdp-response"
#define DHCP_RESPONSE "dhcp-response"
struct in_addr * netmask_p, struct in_addr * router_p,
struct proc * procp);
+
+/* forward declarations */
+int inet_aton(char * cp, struct in_addr * pin);
+
+boolean_t netboot_iaddr(struct in_addr * iaddr_p);
+boolean_t netboot_rootpath(struct in_addr * server_ip,
+ char * name, int name_len,
+ char * path, int path_len);
+int netboot_setup(struct proc * p);
+int netboot_mountroot(void);
+int netboot_root(void);
+
+
+
#define IP_FORMAT "%d.%d.%d.%d"
#define IP_CH(ip) ((u_char *)ip)
#define IP_LIST(ip) IP_CH(ip)[0],IP_CH(ip)[1],IP_CH(ip)[2],IP_CH(ip)[3]
parse_netboot_path(char * path, struct in_addr * iaddr_p, char * * host,
char * * mount_dir, char * * image_path)
{
+ static char tmp[MAX_IPv4_STR_LEN]; /* Danger - not thread safe */
char * start;
char * colon;
(void)find_colon(start);
*image_path = start;
}
- *host = inet_ntoa(*iaddr_p);
+ *host = inet_ntop(AF_INET, iaddr_p, tmp, sizeof(tmp));
return (TRUE);
}
return (FALSE);
}
pkt = IOBSDRegistryEntryGetData(entry, BSDP_RESPONSE, &pkt_len);
- if (pkt != NULL && pkt_len >= sizeof(struct dhcp)) {
+ if (pkt != NULL && pkt_len >= (int)sizeof(struct dhcp)) {
printf("netboot: retrieving root path from BSDP response\n");
}
else {
pkt = IOBSDRegistryEntryGetData(entry, BOOTP_RESPONSE,
&pkt_len);
- if (pkt != NULL && pkt_len >= sizeof(struct dhcp)) {
+ if (pkt != NULL && pkt_len >= (int)sizeof(struct dhcp)) {
printf("netboot: retrieving root path from BOOTP response\n");
}
}
char * vndevice = NULL;
MALLOC_ZONE(vndevice, caddr_t, MAXPATHLEN, M_NAMEI, M_WAITOK);
+ if (vndevice == NULL)
+ panic("netboot_info_init: M_NAMEI zone exhausted");
if (PE_parse_boot_arg("vndevice", vndevice) == TRUE) {
use_hdix = FALSE;
}
/* check for a booter-specified path then a NetBoot path */
MALLOC_ZONE(root_path, caddr_t, MAXPATHLEN, M_NAMEI, M_WAITOK);
+ if (root_path == NULL)
+ panic("netboot_info_init: M_NAMEI zone exhausted");
if (PE_parse_boot_arg("rp", root_path) == TRUE
|| PE_parse_boot_arg("rootpath", root_path) == TRUE
|| get_root_path(root_path) == TRUE) {
printf("Server %s Mount %s",
server_name, info->mount_point);
if (image_path != NULL) {
- boolean_t needs_slash;
+ boolean_t needs_slash = FALSE;
info->image_path_length = strlen(image_path) + 1;
if (image_path[0] != '/') {
return (FALSE);
}
pkt = IOBSDRegistryEntryGetData(entry, DHCP_RESPONSE, &pkt_len);
- if (pkt != NULL && pkt_len >= sizeof(struct dhcp)) {
+ if (pkt != NULL && pkt_len >= (int)sizeof(struct dhcp)) {
printf("netboot: retrieving IP information from DHCP response\n");
}
else {
pkt = IOBSDRegistryEntryGetData(entry, BOOTP_RESPONSE, &pkt_len);
- if (pkt != NULL && pkt_len >= sizeof(struct dhcp)) {
+ if (pkt != NULL && pkt_len >= (int)sizeof(struct dhcp)) {
printf("netboot: retrieving IP information from BOOTP response\n");
}
}
const struct in_addr * mask,
const struct in_addr * broadcast)
{
- struct sockaddr blank_sin = { sizeof(blank_sin), AF_INET };
+ struct sockaddr blank_sin;
struct ifaliasreq ifra;
+ bzero(&blank_sin, sizeof(blank_sin));
+ blank_sin.sa_len = sizeof(blank_sin);
+ blank_sin.sa_family = AF_INET;
+
bzero(&ifra, sizeof(ifra));
strncpy(ifra.ifra_name, name, sizeof(ifra.ifra_name));
if (addr) {
}
static int
-default_route_add(struct in_addr router, boolean_t proxy_arp)
+route_cmd(int cmd, struct in_addr d, struct in_addr g,
+ struct in_addr m, u_long more_flags)
{
struct sockaddr_in dst;
u_long flags = RTF_UP | RTF_STATIC;
struct sockaddr_in gw;
struct sockaddr_in mask;
- if (proxy_arp == FALSE) {
- flags |= RTF_GATEWAY;
- }
+ flags |= more_flags;
- /* dest 0.0.0.0 */
+ /* destination */
bzero((caddr_t)&dst, sizeof(dst));
dst.sin_len = sizeof(dst);
dst.sin_family = AF_INET;
+ dst.sin_addr = d;
/* gateway */
bzero((caddr_t)&gw, sizeof(gw));
gw.sin_len = sizeof(gw);
gw.sin_family = AF_INET;
- gw.sin_addr = router;
+ gw.sin_addr = g;
- /* mask 0.0.0.0 */
+ /* mask */
bzero(&mask, sizeof(mask));
mask.sin_len = sizeof(mask);
mask.sin_family = AF_INET;
+ mask.sin_addr = m;
- printf("netboot: adding default route " IP_FORMAT "\n",
- IP_LIST(&router));
-
- return (rtrequest(RTM_ADD, (struct sockaddr *)&dst, (struct sockaddr *)&gw,
+ return (rtrequest(cmd, (struct sockaddr *)&dst, (struct sockaddr *)&gw,
(struct sockaddr *)&mask, flags, NULL));
}
+static int
+default_route_add(struct in_addr router, boolean_t proxy_arp)
+{
+ u_long flags = 0;
+ struct in_addr zeroes = { 0 };
+
+ if (proxy_arp == FALSE) {
+ flags |= RTF_GATEWAY;
+ }
+ return (route_cmd(RTM_ADD, zeroes, router, zeroes, flags));
+}
+
+static int
+host_route_delete(struct in_addr host)
+{
+ struct in_addr zeroes = { 0 };
+
+ return (route_cmd(RTM_DELETE, host, zeroes, zeroes, RTF_HOST));
+}
+
static struct ifnet *
-find_interface()
+find_interface(void)
{
struct ifnet * ifp = NULL;
if (rootdevice[0]) {
- ifp = ifunit(rootdevice);
+ ifp = ifunit(rootdevice);
}
if (ifp == NULL) {
- TAILQ_FOREACH(ifp, &ifnet, if_link)
- if ((ifp->if_flags &
- (IFF_LOOPBACK|IFF_POINTOPOINT)) == 0)
- break;
+ ifnet_head_lock_shared();
+ TAILQ_FOREACH(ifp, &ifnet_head, if_link)
+ if ((ifp->if_flags & (IFF_LOOPBACK|IFF_POINTOPOINT)) == 0)
+ break;
+ ifnet_head_done();
}
return (ifp);
}
int
-netboot_mountroot()
+netboot_mountroot(void)
{
int error = 0;
struct in_addr iaddr = { 0 };
struct proc * procp = current_proc();
struct in_addr router = { 0 };
struct socket * so = NULL;
+ unsigned int try;
bzero(&ifr, sizeof(ifr));
- thread_funnel_switch(KERNEL_FUNNEL, NETWORK_FUNNEL);
/* find the interface */
ifp = find_interface();
/* enable proxy arp if we don't have a router */
router.s_addr = iaddr.s_addr;
}
+ printf("netboot: adding default route " IP_FORMAT "\n",
+ IP_LIST(&router));
error = default_route_add(router, router.s_addr == iaddr.s_addr);
if (error) {
printf("netboot: default_route_add failed %d\n", error);
}
soclose(so);
- thread_funnel_switch(NETWORK_FUNNEL, KERNEL_FUNNEL);
S_netboot_info_p = netboot_info_init(iaddr);
switch (S_netboot_info_p->image_type) {
default:
case kNetBootImageTypeNFS:
- error = nfs_mountroot();
+ for (try = 1; TRUE; try++) {
+ error = nfs_mountroot();
+ if (error == 0) {
+ break;
+ }
+ printf("netboot: nfs_mountroot() attempt %u failed; "
+ "clearing ARP entry and trying again\n", try);
+ /*
+ * error is either EHOSTDOWN or EHOSTUNREACH, which likely means
+ * that the port we're plugged into has spanning tree enabled,
+ * and either the router or the server can't answer our ARP
+ * requests. Clear the incomplete ARP entry by removing the
+ * appropriate route, depending on the error code:
+ * EHOSTDOWN NFS server's route
+ * EHOSTUNREACH router's route
+ */
+ switch (error) {
+ default:
+ /* NOT REACHED */
+ case EHOSTDOWN:
+ /* remove the server's arp entry */
+ error = host_route_delete(S_netboot_info_p->server_ip);
+ if (error) {
+ printf("netboot: host_route_delete(" IP_FORMAT
+ ") failed %d\n",
+ IP_LIST(&S_netboot_info_p->server_ip), error);
+ }
+ break;
+ case EHOSTUNREACH:
+ error = host_route_delete(router);
+ if (error) {
+ printf("netboot: host_route_delete(" IP_FORMAT
+ ") failed %d\n", IP_LIST(&router), error);
+ }
+ break;
+ }
+ }
break;
case kNetBootImageTypeHTTP:
error = netboot_setup(procp);
if (so != NULL) {
soclose(so);
}
- thread_funnel_switch(NETWORK_FUNNEL, KERNEL_FUNNEL);
return (error);
}
if (error == 0 && rootvnode != NULL) {
struct vnode *tvp;
struct vnode *newdp;
+ struct vfs_context context;
+
+ context.vc_proc = p;
+ context.vc_ucred = proc_ucred(p); /* XXX kauth_cred_get() ??? proxy */
/* Get the vnode for '/'. Set fdp->fd_fd.fd_cdir to reference it. */
- if (VFS_ROOT(mountlist.cqh_last, &newdp))
+ if (VFS_ROOT(mountlist.tqh_last, &newdp, &context))
panic("netboot_setup: cannot find root vnode");
- VREF(newdp);
+ vnode_ref(newdp);
+ vnode_put(newdp);
tvp = rootvnode;
- vrele(tvp);
+ vnode_rele(tvp);
filedesc0.fd_cdir = newdp;
rootvnode = newdp;
- simple_lock(&mountlist_slock);
- CIRCLEQ_REMOVE(&mountlist, CIRCLEQ_FIRST(&mountlist), mnt_list);
- simple_unlock(&mountlist_slock);
- VOP_UNLOCK(rootvnode, 0, p);
- mountlist.cqh_first->mnt_flag |= MNT_ROOTFS;
+ mount_list_lock();
+ TAILQ_REMOVE(&mountlist, TAILQ_FIRST(&mountlist), mnt_list);
+ mount_list_unlock();
+ mountlist.tqh_first->mnt_flag |= MNT_ROOTFS;
}
done:
netboot_info_free(&S_netboot_info_p);
}
int
-netboot_root()
+netboot_root(void)
{
return (S_netboot);
}
projects / apple / xnu.git / blobdiff