X-Git-Url: https://git.decadent.org.uk/gitweb/?p=nfs-utils.git;a=blobdiff_plain;f=utils%2Fmountd%2Fcache.c;h=fd317cdc40fc16c9744de0dded6b84442c001d6e;hp=fb2a8e7281c5832264e545ed18fe4f908ad1e856;hb=bfdc26916d8dabd319240a3ce5198b6189040be7;hpb=be73b5afb50ecfda9d85aaac247792b1b7d7dc62

diff --git a/utils/mountd/cache.c b/utils/mountd/cache.c
index fb2a8e7..fd317cd 100644
--- a/utils/mountd/cache.c
+++ b/utils/mountd/cache.c
@@ -30,8 +30,11 @@
 #include "mountd.h"
 #include "xmalloc.h"
 #include "fsloc.h"
+#include "pseudoflavors.h"
 
+#ifdef USE_BLKID
 #include "blkid/blkid.h"
+#endif
 
 
 enum nfsd_fsid {
@@ -58,6 +61,7 @@ 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)
 {
@@ -71,8 +75,9 @@ 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;
 
@@ -91,18 +96,22 @@ 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);
 
 	if (client) free(client);
-	
+	free(he);
 }
 
 void auth_unix_gid(FILE *f)
@@ -152,6 +161,7 @@ void auth_unix_gid(FILE *f)
 		free(groups);
 }
 
+#if USE_BLKID
 int get_uuid(char *path, char *uuid, int uuidlen, char *u)
 {
 	/* extract hex digits from uuidstr and compose a uuid
@@ -216,6 +226,7 @@ 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
@@ -259,6 +270,8 @@ 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;
@@ -384,7 +397,7 @@ 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]?
@@ -393,6 +406,9 @@ void nfsd_fh(FILE *f)
 				dev_missing ++;
 			if (stat(path, &stb) != 0)
 				continue;
+			if (!S_ISDIR(stb.st_mode) && !S_ISREG(stb.st_mode)) {
+				continue;
+			}
 			switch(fsidtype){
 			case FSID_DEV:
 			case FSID_MAJOR_MINOR:
@@ -418,6 +434,7 @@ 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);
@@ -428,11 +445,25 @@ void nfsd_fh(FILE *f)
 				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",
@@ -461,7 +492,8 @@ void nfsd_fh(FILE *f)
 	}
 
 	if (found)
-		cache_export_ent(dom, found, found_path);
+		if (cache_export_ent(dom, found, found_path) < 0)
+			found = 0;
 
 	qword_print(f, dom);
 	qword_printint(f, fsidtype);
@@ -476,9 +508,11 @@ 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:
+	free(found_path);
+	free(he);
 	free(dom);
 	return;		
 }
@@ -506,6 +540,25 @@ static void write_fsloc(FILE *f, struct exportent *ep, char *path)
 	release_replicas(servers);
 }
 
+static void write_secinfo(FILE *f, struct exportent *ep)
+{
+	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);
+	}
+
+}
+
 static int dump_to_cache(FILE *f, char *domain, char *path, struct exportent *exp)
 {
 	qword_print(f, domain);
@@ -517,6 +570,8 @@ static int dump_to_cache(FILE *f, char *domain, char *path, struct exportent *ex
 		qword_printint(f, exp->e_anongid);
 		qword_printint(f, exp->e_fsid);
 		write_fsloc(f, exp, path);
+		write_secinfo(f, exp);
+#if USE_BLKID
  		if (exp->e_uuid == NULL) {
  			char u[16];
  			if (get_uuid(path, NULL, 16, u)) {
@@ -527,6 +582,7 @@ static int dump_to_cache(FILE *f, char *domain, char *path, struct exportent *ex
  			qword_print(f, "uuid");
  			qword_printhex(f, exp->e_uuid, 16);
  		}
+#endif
 	}
 	return qword_eol(f);
 }
@@ -544,6 +600,8 @@ 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)
@@ -566,7 +624,7 @@ 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))
+			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 */
@@ -580,6 +638,15 @@ 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;
@@ -609,14 +676,19 @@ void nfsd_export(FILE *f)
 	}
 
 	if (found) {
-		dump_to_cache(f, dom, path, &found->m_export);
-		mountlist_add(dom, path);
+		if (dump_to_cache(f, dom, path, &found->m_export) < 0) {
+			xlog(L_WARNING,
+			     "Cannot export %s, possibly unsupported filesystem"
+			     " or fsid= required", path);
+			dump_to_cache(f, dom, path, NULL);
+		}
 	} else {
 		dump_to_cache(f, dom, path, NULL);
 	}
  out:
 	if (dom) free(dom);
 	if (path) free(path);
+	if (he) free(he);
 }
 
 
@@ -684,9 +756,13 @@ int cache_export_ent(char *domain, struct exportent *exp, char *path)
 		return -1;
 
 	err = dump_to_cache(f, domain, exp->e_path, exp);
-	mountlist_add(domain, exp->e_path);
+	if (err) {
+		xlog(L_WARNING,
+		     "Cannot export %s, possibly unsupported filesystem or"
+		     " fsid= required", exp->e_path);
+	}
 
-	while ((exp->e_flags & NFSEXP_CROSSMOUNT) && path) {
+	while (err == 0 && (exp->e_flags & NFSEXP_CROSSMOUNT) && path) {
 		/* really an 'if', but we can break out of
 		 * a 'while' more easily */
 		/* Look along 'path' for other filesystems
@@ -704,16 +780,17 @@ int cache_export_ent(char *domain, struct exportent *exp, char *path)
 		dev = stb.st_dev;
 		while(path[l] == '/') {
 			char c;
-			int err;
+			/* errors for submount should fail whole filesystem */
+			int err2;
 
 			l++;
 			while (path[l] != '/' && path[l])
 				l++;
 			c = path[l];
 			path[l] = 0;
-			err = lstat(path, &stb);
+			err2 = lstat(path, &stb);
 			path[l] = c;
-			if (err < 0)
+			if (err2 < 0)
 				break;
 			if (stb.st_dev == dev)
 				continue;