X-Git-Url: https://git.decadent.org.uk/gitweb/?p=nfs-utils.git;a=blobdiff_plain;f=utils%2Fmountd%2Fmountd.c;h=3769c924d2d22a0e973e19a202d2d31833f40057;hp=73f9f66c074d3328309920cc63affe24ed8103a4;hb=d38ea02d0e4bcdc4e0114567028596f7bcba45b9;hpb=9743207017ccface520f839fb573ddef22e464ed

diff --git a/utils/mountd/mountd.c b/utils/mountd/mountd.c
index 73f9f66..3769c92 100644
--- a/utils/mountd/mountd.c
+++ b/utils/mountd/mountd.c
@@ -24,14 +24,22 @@
 #include "mountd.h"
 #include "rpcmisc.h"
 
+extern void	cache_open(void);
+extern struct nfs_fh_len *cache_get_filehandle(nfs_export *exp, int len, char *p);
+extern void cache_export(nfs_export *exp);
+
+extern void my_svc_run(void);
+
 static void		usage(const char *, int exitcode);
 static exports		get_exportlist(void);
 static struct nfs_fh_len *get_rootfh(struct svc_req *, dirpath *, int *, int v3);
 
+int new_cache = 0;
+
 static struct option longopts[] =
 {
 	{ "foreground", 0, 0, 'F' },
-	{ "descriptors", 0, 0, 'o' },
+	{ "descriptors", 1, 0, 'o' },
 	{ "debug", 1, 0, 'd' },
 	{ "help", 0, 0, 'h' },
 	{ "exports-file", 1, 0, 'f' },
@@ -182,7 +190,7 @@ mount_pathconf_2_svc(struct svc_req *rqstp, dirpath *path, ppathcnf *res)
 	}
 
 	/* Now authenticate the intruder... */
-	if (!(exp = auth_authenticate("mount", sin, p))) {
+	if (!(exp = auth_authenticate("pathconf", sin, p))) {
 		return 1;
 	} else if (stat(p, &stb) < 0) {
 		xlog(L_WARNING, "can't stat exported dir %s: %s",
@@ -234,7 +242,7 @@ get_rootfh(struct svc_req *rqstp, dirpath *path, int *error, int v3)
 {
 	struct sockaddr_in *sin =
 		(struct sockaddr_in *) svc_getcaller(rqstp->rq_xprt);
-	struct stat	stb;
+	struct stat	stb, estb;
 	nfs_export	*exp;
 	char		rpath[MAXPATHLEN+1];
 	char		*p = *path;
@@ -264,6 +272,37 @@ get_rootfh(struct svc_req *rqstp, dirpath *path, int *error, int v3)
 	} else if (!S_ISDIR(stb.st_mode) && !S_ISREG(stb.st_mode)) {
 		xlog(L_WARNING, "%s is not a directory or regular file", p);
 		*error = NFSERR_NOTDIR;
+	} else if (stat(exp->m_export.e_path, &estb) < 0) {
+		xlog(L_WARNING, "can't stat export point %s: %s",
+		     p, strerror(errno));
+		*error = NFSERR_NOENT;
+	} else if (estb.st_dev != stb.st_dev
+		   /* && (!new_cache || !(exp->m_export.e_flags & NFSEXP_CROSSMNT)) */
+		) {
+		xlog(L_WARNING, "request to export directory %s below nearest filesystem %s",
+		     p, exp->m_export.e_path);
+		*error = NFSERR_ACCES;
+	} else if (exp->m_export.e_mountpoint &&
+		   !is_mountpoint(exp->m_export.e_mountpoint[0]?
+				  exp->m_export.e_mountpoint:
+				  exp->m_export.e_path)) {
+		xlog(L_WARNING, "request to export an unmounted filesystem: %s",
+		     p);
+		*error = NFSERR_NOENT;
+	} else if (new_cache) {
+		/* This will be a static private nfs_export with just one
+		 * address.  We feed it to kernel then extract the filehandle,
+		 * 
+		 */
+		struct nfs_fh_len  *fh;
+
+		cache_export(exp);
+		fh = cache_get_filehandle(exp, v3?64:32, p);
+		if (fh == NULL) 
+			*error = NFSERR_ACCES;
+		else
+			*error = NFS_OK;
+		return fh;
 	} else {
 		struct nfs_fh_len  *fh;
 
@@ -399,7 +438,7 @@ main(int argc, char **argv)
 
 	/* Parse the command line options and arguments. */
 	opterr = 0;
-	while ((c = getopt_long(argc, argv, "o:Fd:f:p:P:hN:V:v", longopts, NULL)) != EOF)
+	while ((c = getopt_long(argc, argv, "on:Fd:f:p:P:hN:V:v", longopts, NULL)) != EOF)
 		switch (c) {
 		case 'o':
 			descriptors = atoi(optarg);
@@ -491,6 +530,10 @@ main(int argc, char **argv)
 			(void) close(fd);
 	}
 
+	new_cache = check_new_cache();
+	if (new_cache)
+		cache_open();
+
 	if (nfs_version & 0x1)
 		rpc_init("mountd", MOUNTPROG, MOUNTVERS,
 			 mount_dispatch, port);
@@ -529,7 +572,7 @@ main(int argc, char **argv)
 		xlog_background();
 	}
 
-	svc_run();
+	my_svc_run();
 
 	xlog(L_ERROR, "Ack! Gack! svc_run returned!\n");
 	exit(1);