X-Git-Url: https://git.decadent.org.uk/gitweb/?p=nfs-utils.git;a=blobdiff_plain;f=utils%2Fmountd%2Fcache.c;h=e4e2f228f848a458a9d6e30a3c6e02ef8b43bec1;hp=d0688432b04aa8de76f1f636e137eeb343ce98e5;hb=9ccfe0fa5a43dfc4453b09e328565a6c8f999fe4;hpb=c57ae7ee252e665fcc515ae938f0e78ce1d736e9

diff --git a/utils/mountd/cache.c b/utils/mountd/cache.c
index d068843..e4e2f22 100644
--- a/utils/mountd/cache.c
+++ b/utils/mountd/cache.c
@@ -14,6 +14,7 @@
 #include <sys/types.h>
 #include <sys/select.h>
 #include <sys/stat.h>
+#include <sys/vfs.h>
 #include <time.h>
 #include <netinet/in.h>
 #include <arpa/inet.h>
@@ -30,6 +31,7 @@
 #include "mountd.h"
 #include "xmalloc.h"
 #include "fsloc.h"
+#include "pseudoflavors.h"
 
 #ifdef USE_BLKID
 #include "blkid/blkid.h"
@@ -60,6 +62,7 @@ int cache_export_ent(char *domain, struct exportent *exp, char *p);
 
 char *lbuf  = NULL;
 int lbuflen = 0;
+extern int use_ipaddr;
 
 void auth_unix_ip(FILE *f)
 {
@@ -73,11 +76,14 @@ void auth_unix_ip(FILE *f)
 	char *cp;
 	char class[20];
 	char ipaddr[20];
-	char *client;
+	char *client = NULL;
 	struct in_addr addr;
+	struct hostent *he = NULL;
 	if (readline(fileno(f), &lbuf, &lbuflen) != 1)
 		return;
 
+	xlog(D_CALL, "auth_unix_ip: inbuf '%s'", lbuf);
+
 	cp = lbuf;
 
 	if (qword_get(&cp, class, 20) <= 0 ||
@@ -93,18 +99,23 @@ void auth_unix_ip(FILE *f)
 	auth_reload();
 
 	/* addr is a valid, interesting address, find the domain name... */
-	client = client_compose(addr);
-
+	if (!use_ipaddr) {
+		he = client_resolve(addr);
+		client = client_compose(he);
+	}
 	
 	qword_print(f, "nfsd");
 	qword_print(f, ipaddr);
 	qword_printint(f, time(0)+30*60);
-	if (client)
+	if (use_ipaddr)
+		qword_print(f, ipaddr);
+	else if (client)
 		qword_print(f, *client?client:"DEFAULT");
 	qword_eol(f);
+	xlog(D_CALL, "auth_unix_ip: client %p '%s'", client, client?client: "DEFAULT");
 
 	if (client) free(client);
-	
+	free(he);
 }
 
 void auth_unix_gid(FILE *f)
@@ -148,13 +159,50 @@ void auth_unix_gid(FILE *f)
 		qword_printint(f, ngroups);
 		for (i=0; i<ngroups; i++)
 			qword_printint(f, groups[i]);
-	}
+	} else
+		qword_printint(f, 0);
 	qword_eol(f);
+
 	if (groups != glist)
 		free(groups);
 }
 
 #if USE_BLKID
+static const char *get_uuid_blkdev(char *path)
+{
+	static blkid_cache cache = NULL;
+	struct stat stb;
+	char *devname;
+	blkid_tag_iterate iter;
+	blkid_dev dev;
+	const char *type;
+	const char *val = NULL;
+
+	if (cache == NULL)
+		blkid_get_cache(&cache, NULL);
+
+	if (stat(path, &stb) != 0)
+		return NULL;
+	devname = blkid_devno_to_devname(stb.st_dev);
+	if (!devname)
+		return NULL;
+	dev = blkid_get_dev(cache, devname, BLKID_DEV_NORMAL);
+	free(devname);
+	if (!dev)
+		return NULL;
+	iter = blkid_tag_iterate_begin(dev);
+	if (!iter)
+		return NULL;
+	while (blkid_tag_next(iter, &type, &val) == 0)
+		if (strcmp(type, "UUID") == 0)
+			break;
+	blkid_tag_iterate_end(iter);
+	return val;
+}
+#else
+#define get_uuid_blkdev(path) (NULL)
+#endif
+
 int get_uuid(char *path, char *uuid, int uuidlen, char *u)
 {
 	/* extract hex digits from uuidstr and compose a uuid
@@ -162,38 +210,22 @@ int get_uuid(char *path, char *uuid, int uuidlen, char *u)
 	 * a smaller uuid.  Then compare with uuid
 	 */
 	int i = 0;
-	const char *val;
+	const char *val = NULL;
+	char fsid_val[17];
 
 	if (path) {
-		static blkid_cache cache = NULL;
-		struct stat stb;
-		char *devname;
-		blkid_tag_iterate iter;
-		blkid_dev dev;
-		const char *type;
-		if (cache == NULL)
-			blkid_get_cache(&cache, NULL);
-
-		blkid_probe_all_new(cache);
-
-		if (stat(path, &stb) != 0)
-			return 0;
-		devname = blkid_devno_to_devname(stb.st_dev);
-		if (!devname)
-			return 0;
-		dev = blkid_get_dev(cache, devname, BLKID_DEV_NORMAL);
-		free(devname);
-		if (!dev)
-			return 0;
-		iter = blkid_tag_iterate_begin(dev);
-		if (!iter)
-			return 0;
-		while (blkid_tag_next(iter, &type, &val) == 0)
-			if (strcmp(type, "UUID") == 0)
-				break;
-		blkid_tag_iterate_end(iter);
-		if (!type)
-			return 0;
+		val = get_uuid_blkdev(path);
+		if (!val) {
+			struct statfs64 st;
+
+			if (statfs64(path, &st))
+				return 0;
+			if (!st.f_fsid.__val[0] && !st.f_fsid.__val[1])
+				return 0;
+			snprintf(fsid_val, 17, "%08x%08x",
+				 st.f_fsid.__val[0], st.f_fsid.__val[1]);
+			val = fsid_val;
+		}
 	} else {
 		val = uuid;
 	}
@@ -219,7 +251,6 @@ int get_uuid(char *path, char *uuid, int uuidlen, char *u)
 	}
 	return 1;
 }
-#endif
 
 /* Iterate through /etc/mtab, finding mountpoints
  * at or below a given path
@@ -263,6 +294,8 @@ void nfsd_fh(FILE *f)
 	unsigned int fsidnum=0;
 	char fsid[32];
 	struct exportent *found = NULL;
+	struct hostent *he = NULL;
+	struct in_addr addr;
 	char *found_path = NULL;
 	nfs_export *exp;
 	int i;
@@ -273,8 +306,10 @@ void nfsd_fh(FILE *f)
 	if (readline(fileno(f), &lbuf, &lbuflen) != 1)
 		return;
 
-	cp = lbuf;
+	xlog(D_CALL, "nfsd_fh: inbuf '%s'", lbuf);
 
+	cp = lbuf;
+	
 	dom = malloc(strlen(cp));
 	if (dom == NULL)
 		return;
@@ -359,7 +394,7 @@ void nfsd_fh(FILE *f)
 	/* Now determine export point for this fsid/domain */
 	for (i=0 ; i < MCL_MAXTYPES; i++) {
 		nfs_export *next_exp;
-		for (exp = exportlist[i]; exp; exp = next_exp) {
+		for (exp = exportlist[i].p_head; exp; exp = next_exp) {
 			struct stat stb;
 			char u[16];
 			char *path;
@@ -388,7 +423,7 @@ void nfsd_fh(FILE *f)
 				next_exp = exp->m_next;
 			}
 
-			if (!client_member(dom, exp->m_client->m_hostname))
+			if (!use_ipaddr && !client_member(dom, exp->m_client->m_hostname))
 				continue;
 			if (exp->m_export.e_mountpoint &&
 			    !is_mountpoint(exp->m_export.e_mountpoint[0]?
@@ -425,25 +460,31 @@ void nfsd_fh(FILE *f)
 				if (!is_mountpoint(path))
 					continue;
 			check_uuid:
-#if USE_BLKID
 				if (exp->m_export.e_uuid)
 					get_uuid(NULL, exp->m_export.e_uuid,
 						 uuidlen, u);
-				else if (get_uuid(path, NULL,
-						  uuidlen, u) == 0)
+				else if (get_uuid(path, NULL, uuidlen, u) == 0)
 					continue;
 
 				if (memcmp(u, fhuuid, uuidlen) != 0)
 					continue;
 				break;
-#else
-				continue;
-#endif
+			}
+			if (use_ipaddr) {
+				if (he == NULL) {
+					if (!inet_aton(dom, &addr))
+						goto out;
+					he = client_resolve(addr);
+				}
+				if (!client_check(exp->m_client, he))
+					continue;
 			}
 			/* It's a match !! */
 			if (!found) {
 				found = &exp->m_export;
 				found_path = strdup(path);
+				if (found_path == NULL)
+					goto out;
 			} else if (strcmp(found->e_path, exp->m_export.e_path)!= 0)
 			{
 				xlog(L_WARNING, "%s and %s have same filehandle for %s, using first",
@@ -488,10 +529,15 @@ void nfsd_fh(FILE *f)
 	 */
 	qword_printint(f, 0x7fffffff);
 	if (found)
-		qword_print(f, found->e_path);
+		qword_print(f, found_path);
 	qword_eol(f);
  out:
+	if (found_path)
+		free(found_path);
+	if (he)
+		free(he);
 	free(dom);
+	xlog(D_CALL, "nfsd_fh: found %p path %s", found, found ? found->e_path : NULL);
 	return;		
 }
 
@@ -518,29 +564,52 @@ static void write_fsloc(FILE *f, struct exportent *ep, char *path)
 	release_replicas(servers);
 }
 
+static void write_secinfo(FILE *f, struct exportent *ep, int flag_mask)
+{
+	struct sec_entry *p;
+
+	for (p = ep->e_secinfo; p->flav; p++)
+		; /* Do nothing */
+	if (p == ep->e_secinfo) {
+		/* There was no sec= option */
+		return;
+	}
+	qword_print(f, "secinfo");
+	qword_printint(f, p - ep->e_secinfo);
+	for (p = ep->e_secinfo; p->flav; p++) {
+		qword_printint(f, p->flav->fnum);
+		qword_printint(f, p->flags & flag_mask);
+	}
+
+}
+
 static int dump_to_cache(FILE *f, char *domain, char *path, struct exportent *exp)
 {
 	qword_print(f, domain);
 	qword_print(f, path);
 	qword_printint(f, time(0)+30*60);
 	if (exp) {
-		qword_printint(f, exp->e_flags);
+		int different_fs = strcmp(path, exp->e_path) != 0;
+		int flag_mask = different_fs ? ~NFSEXP_FSID : ~0;
+
+		qword_printint(f, exp->e_flags & flag_mask);
 		qword_printint(f, exp->e_anonuid);
 		qword_printint(f, exp->e_anongid);
 		qword_printint(f, exp->e_fsid);
 		write_fsloc(f, exp, path);
-#if USE_BLKID
- 		if (exp->e_uuid == NULL) {
+		write_secinfo(f, exp, flag_mask);
+ 		if (exp->e_uuid == NULL || different_fs) {
  			char u[16];
  			if (get_uuid(path, NULL, 16, u)) {
  				qword_print(f, "uuid");
  				qword_printhex(f, u, 16);
  			}
- 		} else if (exp->e_uuid) {
+ 		} else {
+ 			char u[16];
+ 			get_uuid(NULL, exp->e_uuid, 16, u);
  			qword_print(f, "uuid");
- 			qword_printhex(f, exp->e_uuid, 16);
+ 			qword_printhex(f, u, 16);
  		}
-#endif
 	}
 	return qword_eol(f);
 }
@@ -558,11 +627,15 @@ void nfsd_export(FILE *f)
 	char *dom, *path;
 	nfs_export *exp, *found = NULL;
 	int found_type = 0;
+	struct in_addr addr;
+	struct hostent *he = NULL;
 
 
 	if (readline(fileno(f), &lbuf, &lbuflen) != 1)
 		return;
 
+	xlog(D_CALL, "nfsd_export: inbuf '%s'", lbuf);
+
 	cp = lbuf;
 	dom = malloc(strlen(cp));
 	path = malloc(strlen(cp));
@@ -579,8 +652,8 @@ void nfsd_export(FILE *f)
 
 	/* now find flags for this export point in this domain */
 	for (i=0 ; i < MCL_MAXTYPES; i++) {
-		for (exp = exportlist[i]; exp; exp = exp->m_next) {
-			if (!client_member(dom, exp->m_client->m_hostname))
+		for (exp = exportlist[i].p_head; exp; exp = exp->m_next) {
+			if (!use_ipaddr && !client_member(dom, exp->m_client->m_hostname))
 				continue;
 			if (exp->m_export.e_flags & NFSEXP_CROSSMOUNT) {
 				/* if path is a mountpoint below e_path, then OK */
@@ -594,6 +667,15 @@ void nfsd_export(FILE *f)
 					continue;
 			} else if (strcmp(path, exp->m_export.e_path) != 0)
 				continue;
+			if (use_ipaddr) {
+				if (he == NULL) {
+					if (!inet_aton(dom, &addr))
+						goto out;
+					he = client_resolve(addr);
+				}
+				if (!client_check(exp->m_client, he))
+					continue;
+			}
 			if (!found) {
 				found = exp;
 				found_type = i;
@@ -601,9 +683,9 @@ void nfsd_export(FILE *f)
 			}
 			/* If one is a CROSSMOUNT, then prefer the longest path */
 			if (((found->m_export.e_flags & NFSEXP_CROSSMOUNT) ||
-			     (found->m_export.e_flags & NFSEXP_CROSSMOUNT)) &&
+			     (exp->m_export.e_flags & NFSEXP_CROSSMOUNT)) &&
 			    strlen(found->m_export.e_path) !=
-			    strlen(found->m_export.e_path)) {
+			    strlen(exp->m_export.e_path)) {
 
 				if (strlen(exp->m_export.e_path) >
 				    strlen(found->m_export.e_path)) {
@@ -628,14 +710,15 @@ void nfsd_export(FILE *f)
 			     "Cannot export %s, possibly unsupported filesystem"
 			     " or fsid= required", path);
 			dump_to_cache(f, dom, path, NULL);
-		} else
-			mountlist_add(dom, path);
+		}
 	} else {
 		dump_to_cache(f, dom, path, NULL);
 	}
  out:
+	xlog(D_CALL, "nfsd_export: found %p path %s", found, path ? path : NULL);
 	if (dom) free(dom);
 	if (path) free(path);
+	if (he) free(he);
 }
 
 
@@ -708,7 +791,6 @@ int cache_export_ent(char *domain, struct exportent *exp, char *path)
 		     "Cannot export %s, possibly unsupported filesystem or"
 		     " fsid= required", exp->e_path);
 	}
-	mountlist_add(domain, exp->e_path);
 
 	while (err == 0 && (exp->e_flags & NFSEXP_CROSSMOUNT) && path) {
 		/* really an 'if', but we can break out of