* (This happens to be the way Sun does it too.)
*/
-extern int bootp(struct ifnet * ifp, struct in_addr * iaddr_p, int max_retry,
- struct in_addr * netmask_p, struct in_addr * router_p,
- struct proc * procp);
-
/* bootparam RPC */
static int bp_whoami __P((struct sockaddr_in *bpsin,
struct in_addr *my_ip, struct in_addr *gw_ip));
static int bp_getfile __P((struct sockaddr_in *bpsin, char *key,
struct sockaddr_in *mdsin, char *servname, char *path));
-static boolean_t path_getfile __P((char * image_path,
- struct sockaddr_in * sin_p,
- char * serv_name, char * pathname));
-
-static __inline__
-u_long iptohl(struct in_addr ip)
-{
- return (ntohl(ip.s_addr));
-}
-
-static __inline__ boolean_t
-same_subnet(struct in_addr addr1, struct in_addr addr2, struct in_addr mask)
-{
- u_long m = iptohl(mask);
- if ((iptohl(addr1) & m) != (iptohl(addr2) & m))
- return (FALSE);
- return (TRUE);
-}
-
/* mountd RPC */
static int md_mount __P((struct sockaddr_in *mdsin, char *path,
u_char *fh));
/* other helpers */
-static void get_file_handle __P((char *pathname, struct nfs_dlmount *ndmntp));
+static int get_file_handle __P((char *pathname, struct nfs_dlmount *ndmntp));
+
#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]
+
+extern boolean_t
+netboot_iaddr(struct in_addr * iaddr_p);
+
+extern boolean_t
+netboot_rootpath(struct in_addr * server_ip,
+ char * name, int name_len,
+ char * path, int path_len);
+
/*
* Called with an empty nfs_diskless struct to be filled in.
*/
struct nfs_diskless *nd;
struct proc *procp;
{
- char * booter_path = NULL;
- boolean_t do_bpwhoami = TRUE;
- boolean_t do_bpgetfile = TRUE;
- struct ifreq ireq;
- struct in_addr my_ip;
- struct sockaddr_in bp_sin;
- struct sockaddr_in *sin;
- struct ifnet *ifp;
- struct in_addr gw_ip;
- struct socket *so;
- struct in_addr my_netmask;
- int error;
- char * root_path = NULL;
+ struct sockaddr_in bp_sin;
+ boolean_t do_bpwhoami = TRUE;
+ boolean_t do_bpgetfile = TRUE;
+ int error = 0;
+ struct in_addr my_ip;
+ char * root_path = NULL;
+ struct sockaddr_in * sin_p;
+
+ /* by this point, networking must already have been configured */
+ if (netboot_iaddr(&my_ip) == FALSE) {
+ printf("nfs_boot: networking is not initialized\n");
+ error = ENXIO;
+ goto failed;
+ }
- MALLOC(booter_path, char *, MAXPATHLEN, M_TEMP, M_WAITOK);
+ /* get the root path information */
MALLOC(root_path, char *, MAXPATHLEN, M_TEMP, M_WAITOK);
-
- /* booter-supplied path */
- if (!PE_parse_boot_arg("rp", booter_path)
- && !PE_parse_boot_arg("rootpath", booter_path)) {
- booter_path[0] = 0;
+ sin_p = &nd->nd_root.ndm_saddr;
+ bzero((caddr_t)sin_p, sizeof(*sin_p));
+ sin_p->sin_len = sizeof(*sin_p);
+ sin_p->sin_family = AF_INET;
+ if (netboot_rootpath(&sin_p->sin_addr, nd->nd_root.ndm_host,
+ sizeof(nd->nd_root.ndm_host),
+ root_path, MAXPATHLEN) == TRUE) {
+ do_bpgetfile = FALSE;
+ do_bpwhoami = FALSE;
}
-
- root_path[0] = 0;
-
- gw_ip.s_addr = 0;
-
- /* clear out the request structure */
- bzero(&ireq, sizeof(ireq));
-
- /*
- * Find an interface, rarp for its ip address, stuff it, the
- * implied broadcast addr, and netmask into a nfs_diskless struct.
- *
- * This was moved here from nfs_vfsops.c because this procedure
- * would be quite different if someone decides to write (i.e.) a
- * BOOTP version of this file (might not use RARP, etc.)
- */
+ nd->nd_private.ndm_saddr.sin_addr.s_addr = 0;
thread_funnel_switch(KERNEL_FUNNEL, NETWORK_FUNNEL);
- /*
- * Find a network interface.
- */
- ifp = NULL;
- { /* if the root device is set, use it */
- extern char rootdevice[];
- if (rootdevice[0])
- ifp = ifunit(rootdevice);
- }
- if (ifp == NULL) { /* search for network device */
- /* for (ifp = ifnet; ifp; ifp = ifp->if_next)*/
- TAILQ_FOREACH(ifp, &ifnet, if_link)
- if ((ifp->if_flags &
- (IFF_LOOPBACK|IFF_POINTOPOINT)) == 0)
- break;
- }
- if (ifp == NULL)
- panic("nfs_boot: no suitable interface");
- sprintf(ireq.ifr_name, "%s%d", ifp->if_name, ifp->if_unit);
- printf("nfs_boot: using network interface '%s'\n", ireq.ifr_name);
-
- /*
- * Bring up the interface.
- */
- if ((error = socreate(AF_INET, &so, SOCK_DGRAM, 0)) != 0)
- panic("nfs_boot: socreate, error=%d", error);
- ireq.ifr_flags = ifp->if_flags | IFF_UP;
- error = ifioctl(so, SIOCSIFFLAGS, (caddr_t)&ireq, procp);
- if (error)
- panic("nfs_boot: SIFFLAGS, error=%d", error);
-
-#define DO_BOOTP
-#ifdef DO_BOOTP
- { /* use BOOTP to retrieve IP address, netmask and router */
- struct sockaddr_in sockin;
- struct in_addr router;
- struct in_addr netmask;
-
- my_ip.s_addr = 0;
- netmask.s_addr = 0;
- router.s_addr = 0;
- sockin.sin_family = AF_INET;
- sockin.sin_len = sizeof(sockin);
- sockin.sin_addr.s_addr = 0;
-#define RETRY_COUNT 32
- while ((error = bootp(ifp, &my_ip, RETRY_COUNT,
- &netmask, &router, procp))) {
- if (error == ETIMEDOUT)
- printf("nfs_boot: BOOTP timed out, retrying...\n");
-
- else {
- printf("nfs_boot: bootp() failed, error = %d\n", error);
- panic("nfs_boot");
- }
- }
- /* clear the netmask */
- ((struct sockaddr_in *)&ireq.ifr_addr)->sin_addr.s_addr = 0;
- error = ifioctl(so, SIOCSIFNETMASK, (caddr_t)&ireq, procp);
- if (error)
- printf("nfs_boot: SIOCSIFNETMASK failed: %d\n", error);
-
- if (netmask.s_addr) {
- /* set our new subnet mask */
- sockin.sin_addr = netmask;
- *((struct sockaddr_in *)&ireq.ifr_addr) = sockin;
- error = ifioctl(so, SIOCSIFNETMASK, (caddr_t)&ireq, procp);
- if (error)
- printf("nfs_boot: SIOCSIFNETMASK failed: %d\n", error);
- }
-
- /* set our address */
- sockin.sin_addr = my_ip;
- *((struct sockaddr_in *)&ireq.ifr_addr) = sockin;
- error = ifioctl(so, SIOCSIFADDR, (caddr_t)&ireq, procp);
- if (error) {
- printf("SIOCSIFADDR failed: %d\n", error);
- panic("nfs_boot.c");
- }
- printf("nfs_boot: IP address " IP_FORMAT, IP_LIST(&my_ip));
- if (netmask.s_addr)
- printf(" netmask " IP_FORMAT, IP_LIST(&netmask));
- if (router.s_addr) {
- gw_ip = router;
- printf(" router " IP_FORMAT, IP_LIST(&router));
- }
- printf("\n");
- }
-#else
- /*
- * Do RARP for the interface address.
- */
- if ((error = revarpwhoami(&my_ip, ifp)) != 0)
- panic("revarp failed, error=%d", error);
- printf("nfs_boot: client_addr=0x%x\n", ntohl(my_ip.s_addr));
-
- /*
- * Do enough of ifconfig(8) so that the chosen interface
- * can talk to the servers. (just set the address)
- */
- sin = (struct sockaddr_in *)&ireq.ifr_addr;
- bzero((caddr_t)sin, sizeof(*sin));
- sin->sin_len = sizeof(*sin);
- sin->sin_family = AF_INET;
- sin->sin_addr.s_addr = my_ip.s_addr;
- error = ifioctl(so, SIOCSIFADDR, (caddr_t)&ireq, procp);
- if (error)
- panic("nfs_boot: set if addr, error=%d", error);
-#endif DO_BOOTP
-
- /* need netmask to determine whether NFS server local */
- sin = (struct sockaddr_in *)&ireq.ifr_addr;
- bzero((caddr_t)sin, sizeof(*sin));
- sin->sin_len = sizeof(*sin);
- sin->sin_family = AF_INET;
- error = ifioctl(so, SIOCGIFNETMASK, (caddr_t)&ireq, procp);
- if (error)
- panic("nfs_boot: SIOCGIFNETMASK error=%d", error);
- my_netmask = sin->sin_addr;
-
- soclose(so);
-
- /* check for a booter-specified path */
- if (booter_path[0]) {
- nd->nd_root.ndm_saddr.sin_addr.s_addr = 0;
- nd->nd_private.ndm_saddr.sin_addr.s_addr = 0;
- if (path_getfile(booter_path, &nd->nd_root.ndm_saddr,
- nd->nd_root.ndm_host, root_path)) {
- do_bpgetfile = FALSE;
- printf("nfs_boot: using booter-supplied path '%s'\n",
- booter_path);
- if (same_subnet(nd->nd_root.ndm_saddr.sin_addr,
- my_ip, my_netmask)
- || gw_ip.s_addr) {
- do_bpwhoami = FALSE;
- }
- else {
- /* do bpwhoami to attempt to get the router */
- }
- }
- else {
- printf("nfs_boot: ignoring badly formed bootpath '%s'\n",
- booter_path);
- }
- }
-
if (do_bpwhoami) {
- /*
- * Get client name and gateway address.
- * RPC: bootparam/whoami
- * Use the old broadcast address for the WHOAMI
- * call because we do not yet know our netmask.
- * The server address returned by the WHOAMI call
- * is used for all subsequent booptaram RPCs.
- */
- bzero((caddr_t)&bp_sin, sizeof(bp_sin));
- bp_sin.sin_len = sizeof(bp_sin);
- bp_sin.sin_family = AF_INET;
- bp_sin.sin_addr.s_addr = INADDR_BROADCAST;
- hostnamelen = MAXHOSTNAMELEN;
-
- { /* bpwhoami also returns gateway IP address */
-
struct in_addr router;
-
+ /*
+ * Get client name and gateway address.
+ * RPC: bootparam/whoami
+ * Use the old broadcast address for the WHOAMI
+ * call because we do not yet know our netmask.
+ * The server address returned by the WHOAMI call
+ * is used for all subsequent booptaram RPCs.
+ */
+ bzero((caddr_t)&bp_sin, sizeof(bp_sin));
+ bp_sin.sin_len = sizeof(bp_sin);
+ bp_sin.sin_family = AF_INET;
+ bp_sin.sin_addr.s_addr = INADDR_BROADCAST;
+ hostnamelen = MAXHOSTNAMELEN;
router.s_addr = 0;
error = bp_whoami(&bp_sin, &my_ip, &router);
if (error) {
- printf("nfs_boot: bootparam whoami, error=%d", error);
- panic("nfs_boot: bootparam whoami\n");
+ printf("nfs_boot: bootparam whoami, error=%d", error);
+ goto failed;
}
- /* if not already set by BOOTP, use the one from BPWHOAMI */
- if (gw_ip.s_addr == 0)
- gw_ip = router;
- }
- printf("nfs_boot: BOOTPARAMS server " IP_FORMAT "\n",
- IP_LIST(&bp_sin.sin_addr));
- printf("nfs_boot: hostname %s\n", hostname);
- }
-#define NFS_BOOT_GATEWAY 1
-#ifdef NFS_BOOT_GATEWAY
- /*
- * DWS 2/18/1999
- * The comment below does not apply to gw_ip discovered
- * via BOOTP (see DO_BOOTP loop above) since BOOTP servers
- * are supposed to be more trustworthy.
- */
- /*
- * XXX - This code is conditionally compiled only because
- * many bootparam servers (in particular, SunOS 4.1.3)
- * always set the gateway address to their own address.
- * The bootparam server is not necessarily the gateway.
- * We could just believe the server, and at worst you would
- * need to delete the incorrect default route before adding
- * the correct one, but for simplicity, ignore the gateway.
- * If your server is OK, you can turn on this option.
- *
- * If the gateway address is set, add a default route.
- * (The mountd RPCs may go across a gateway.)
- */
- if (gw_ip.s_addr) {
- struct sockaddr dst, gw, mask;
- /* Destination: (default) */
- bzero((caddr_t)&dst, sizeof(dst));
- dst.sa_len = sizeof(dst);
- dst.sa_family = AF_INET;
- /* Gateway: */
- bzero((caddr_t)&gw, sizeof(gw));
- sin = (struct sockaddr_in *)&gw;
- sin->sin_len = sizeof(gw);
- sin->sin_family = AF_INET;
- sin->sin_addr.s_addr = gw_ip.s_addr;
- /* Mask: (zero length) */
- bzero(&mask, sizeof(mask));
- printf("nfs_boot: adding default route " IP_FORMAT "\n",
- IP_LIST(&gw_ip));
- /* add, dest, gw, mask, flags, 0 */
- error = rtrequest(RTM_ADD, &dst, (struct sockaddr *)&gw,
- &mask, (RTF_UP | RTF_GATEWAY | RTF_STATIC), NULL);
- if (error)
- printf("nfs_boot: add route, error=%d\n", error);
+ printf("nfs_boot: BOOTPARAMS server " IP_FORMAT "\n",
+ IP_LIST(&bp_sin.sin_addr));
+ printf("nfs_boot: hostname %s\n", hostname);
}
-#endif
if (do_bpgetfile) {
- error = bp_getfile(&bp_sin, "root", &nd->nd_root.ndm_saddr,
- nd->nd_root.ndm_host, root_path);
- if (error) {
- printf("nfs_boot: bootparam get root: %d\n", error);
- panic("nfs_boot: bootparam get root");
- }
+ error = bp_getfile(&bp_sin, "root", &nd->nd_root.ndm_saddr,
+ nd->nd_root.ndm_host, root_path);
+ if (error) {
+ printf("nfs_boot: bootparam get root: %d\n", error);
+ goto failed;
+ }
+ }
+
+ error = get_file_handle(root_path, &nd->nd_root);
+ if (error) {
+ printf("nfs_boot: get_file_handle() root failed, %d\n", error);
+ goto failed;
}
-
- get_file_handle(root_path, &nd->nd_root);
#if !defined(NO_MOUNT_PRIVATE)
if (do_bpgetfile) { /* get private path */
- char * private_path = NULL;
-
- MALLOC(private_path, char *, MAXPATHLEN, M_TEMP, M_WAITOK);
- error = bp_getfile(&bp_sin, "private",
- &nd->nd_private.ndm_saddr,
- nd->nd_private.ndm_host, private_path);
- if (!error) {
- char * check_path = NULL;
-
- MALLOC(check_path, char *, MAXPATHLEN, M_TEMP, M_WAITOK);
- sprintf(check_path, "%s/private", root_path);
- if ((nd->nd_root.ndm_saddr.sin_addr.s_addr
- == nd->nd_private.ndm_saddr.sin_addr.s_addr)
- && (strcmp(check_path, private_path) == 0)) {
- /* private path is prefix of root path, don't mount */
- nd->nd_private.ndm_saddr.sin_addr.s_addr = 0;
+ char * private_path = NULL;
+
+ MALLOC(private_path, char *, MAXPATHLEN, M_TEMP, M_WAITOK);
+ error = bp_getfile(&bp_sin, "private",
+ &nd->nd_private.ndm_saddr,
+ nd->nd_private.ndm_host, private_path);
+ if (!error) {
+ char * check_path = NULL;
+
+ MALLOC(check_path, char *, MAXPATHLEN, M_TEMP, M_WAITOK);
+ sprintf(check_path, "%s/private", root_path);
+ if ((nd->nd_root.ndm_saddr.sin_addr.s_addr
+ == nd->nd_private.ndm_saddr.sin_addr.s_addr)
+ && (strcmp(check_path, private_path) == 0)) {
+ /* private path is prefix of root path, don't mount */
+ nd->nd_private.ndm_saddr.sin_addr.s_addr = 0;
+ }
+ else {
+ error = get_file_handle(private_path,
+ &nd->nd_private);
+ if (error) {
+ printf("nfs_boot: get_file_handle() private failed, %d\n", error);
+ goto failed;
+ }
+ }
+ _FREE(check_path, M_TEMP);
}
- else {
- get_file_handle(private_path, &nd->nd_private);
+ else {
+ /* private key not defined, don't mount */
+ nd->nd_private.ndm_saddr.sin_addr.s_addr = 0;
}
- _FREE(check_path, M_TEMP);
- }
- else {
- /* private key not defined, don't mount */
- nd->nd_private.ndm_saddr.sin_addr.s_addr = 0;
- }
- _FREE(private_path, M_TEMP);
+ _FREE(private_path, M_TEMP);
+ }
+ else {
+ error = 0;
}
#endif NO_MOUNT_PRIVATE
+ failed:
thread_funnel_switch(NETWORK_FUNNEL, KERNEL_FUNNEL);
- _FREE(booter_path, M_TEMP);
_FREE(root_path, M_TEMP);
- return (0);
+ return (error);
}
-int
-inet_aton(char * cp, struct in_addr * pin)
-{
- u_char * b = (char *)pin;
- int i;
- char * p;
-
- for (p = cp, i = 0; i < 4; i++) {
- u_long l = strtoul(p, 0, 0);
- if (l > 255)
- return (FALSE);
- b[i] = l;
- p = strchr(p, '.');
- if (i < 3 && p == NULL)
- return (FALSE);
- p++;
- }
- return (TRUE);
-}
-
-/*
- * Function: parse_image_path
- * Purpose:
- * Parse a string of the form "<IP>:<host>:<path>" into
- * the given ip address and host and pathnames.
- * Example:
- * "17.202.16.17:seaport:/release/.images/Image9/CurrentHera"
- */
-static __inline__ boolean_t
-parse_image_path(char * c, struct in_addr * iaddr_p, char * hostname,
- char * pathname)
-{
- char * d;
- char * p;
-#define TMP_SIZE 128
- char tmp[TMP_SIZE];
-
- p = strchr(c, ':');
- if (p == NULL)
- return (FALSE);
- if ((p - c) >= TMP_SIZE)
- return (FALSE);
- strncpy(tmp, c, p - c);
- tmp[p - c] = 0;
- if (inet_aton(tmp, iaddr_p) != 1)
- return (FALSE);
- p++;
- d = strchr(p, ':');
- if (d == NULL)
- return (FALSE);
- strncpy(hostname, p, d - p);
- hostname[d - p] = 0;
- d++;
- strcpy(pathname, d);
- return (TRUE);
-}
-
-static boolean_t
-path_getfile(char * image_path, struct sockaddr_in * sin_p,
- char * serv_name, char * pathname)
-{
- bzero((caddr_t)sin_p, sizeof(*sin_p));
- sin_p->sin_len = sizeof(*sin_p);
- sin_p->sin_family = AF_INET;
- if (parse_image_path(image_path, &sin_p->sin_addr, serv_name, pathname)
- == FALSE)
- return (FALSE);
- return (TRUE);
-}
-
-static void
+static int
get_file_handle(pathname, ndmntp)
char *pathname; /* path on server */
struct nfs_dlmount *ndmntp; /* output */
*/
error = md_mount(&ndmntp->ndm_saddr, pathname, ndmntp->ndm_fh);
if (error)
- panic("nfs_boot: mountd, error=%d", error);
+ return (error);
/* Construct remote path (for getmntinfo(3)) */
dp = ndmntp->ndm_host;
for (sp = pathname; *sp && dp < endp;)
*dp++ = *sp++;
*dp = '\0';
+ return (0);
}
projects / apple / xnu.git / blobdiff