diff options
Diffstat (limited to 'xlators/nfs/server/src/mount3.c')
| -rw-r--r-- | xlators/nfs/server/src/mount3.c | 2759 |
1 files changed, 2759 insertions, 0 deletions
diff --git a/xlators/nfs/server/src/mount3.c b/xlators/nfs/server/src/mount3.c new file mode 100644 index 000000000..b0824bf10 --- /dev/null +++ b/xlators/nfs/server/src/mount3.c @@ -0,0 +1,2759 @@ +/* + Copyright (c) 2010-2011 Gluster, Inc. <http://www.gluster.com> + This file is part of GlusterFS. + + This file is licensed to you under your choice of the GNU Lesser + General Public License, version 3 or any later version (LGPLv3 or + later), or the GNU General Public License, version 2 (GPLv2), in all + cases as published by the Free Software Foundation. +*/ + +#ifndef _CONFIG_H +#define _CONFIG_H +#include "config.h" +#endif + +#include "rpcsvc.h" +#include "dict.h" +#include "xlator.h" +#include "mount3.h" +#include "xdr-nfs3.h" +#include "msg-nfs3.h" +#include "iobuf.h" +#include "nfs-common.h" +#include "nfs3-fh.h" +#include "nfs-fops.h" +#include "nfs-inodes.h" +#include "nfs-generics.h" +#include "locking.h" +#include "iatt.h" +#include "nfs-mem-types.h" +#include "nfs.h" +#include "common-utils.h" +#include "store.h" + +#include <errno.h> +#include <sys/socket.h> +#include <sys/uio.h> + + +#define IPv4_ADDR_SIZE 32 + +/* Macro to typecast the parameter to struct sockaddr_in + */ +#define SA(addr) ((struct sockaddr_in*)(addr)) + +/* Macro will mask the ip address with netmask. + */ +#define MASKED_IP(ipv4addr, netmask) \ + (ntohl(SA(ipv4addr)->sin_addr.s_addr) & (netmask)) + +/* Macro will compare two IP address after applying the mask + */ +#define COMPARE_IPv4_ADDRS(ip1, ip2, netmask) \ + ((MASKED_IP(ip1, netmask)) == (MASKED_IP(ip2, netmask))) + +/* This macro will assist in freeing up entire link list + * of host_auth_spec structure. + */ +#define FREE_HOSTSPEC(exp) do { \ + struct host_auth_spec *host= exp->hostspec; \ + while (NULL != host){ \ + struct host_auth_spec* temp = host; \ + host = host->next; \ + if (NULL != temp->host_addr) { \ + GF_FREE (temp->host_addr); \ + } \ + GF_FREE (temp); \ + } \ + exp->hostspec = NULL; \ + } while (0) + +typedef ssize_t (*mnt3_serializer) (struct iovec outmsg, void *args); + +extern void * +mount3udp_thread (void *argv); + +static inline void +mnt3_export_free (struct mnt3_export *exp) +{ + if (!exp) + return; + + if (exp->exptype == MNT3_EXPTYPE_DIR) + FREE_HOSTSPEC (exp); + GF_FREE (exp->expname); + GF_FREE (exp); +} + +/* Generic reply function for MOUNTv3 specific replies. */ +int +mnt3svc_submit_reply (rpcsvc_request_t *req, void *arg, mnt3_serializer sfunc) +{ + struct iovec outmsg = {0, }; + struct iobuf *iob = NULL; + struct mount3_state *ms = NULL; + int ret = -1; + ssize_t msglen = 0; + struct iobref *iobref = NULL; + + if (!req) + return -1; + + ms = (struct mount3_state *)rpcsvc_request_program_private (req); + if (!ms) { + gf_log (GF_MNT, GF_LOG_ERROR, "mount state not found"); + goto ret; + } + + /* First, get the io buffer into which the reply in arg will + * be serialized. + */ + /* TODO: use 'xdrproc_t' instead of 'sfunc' to get the xdr-size */ + iob = iobuf_get (ms->iobpool); + if (!iob) { + gf_log (GF_MNT, GF_LOG_ERROR, "Failed to get iobuf"); + goto ret; + } + + iobuf_to_iovec (iob, &outmsg); + /* Use the given serializer to translate the give C structure in arg + * to XDR format which will be written into the buffer in outmsg. + */ + msglen = sfunc (outmsg, arg); + if (msglen < 0) { + gf_log (GF_MNT, GF_LOG_ERROR, "Failed to encode message"); + goto ret; + } + outmsg.iov_len = msglen; + + iobref = iobref_new (); + if (iobref == NULL) { + gf_log (GF_MNT, GF_LOG_ERROR, "Failed to get iobref"); + goto ret; + } + + ret = iobref_add (iobref, iob); + if (ret) { + gf_log (GF_MNT, GF_LOG_ERROR, "Failed to add iob to iobref"); + goto ret; + } + + /* Then, submit the message for transmission. */ + ret = rpcsvc_submit_message (req, &outmsg, 1, NULL, 0, iobref); + if (ret == -1) { + gf_log (GF_MNT, GF_LOG_ERROR, "Reply submission failed"); + goto ret; + } + + ret = 0; +ret: + if (NULL != iob) + iobuf_unref (iob); + if (NULL != iobref) + iobref_unref (iobref); + + return ret; +} + + +/* Generic error reply function, just pass the err status + * and it will do the rest, including transmission. + */ +int +mnt3svc_mnt_error_reply (rpcsvc_request_t *req, int mntstat) +{ + mountres3 res; + + if (!req) + return -1; + + res.fhs_status = mntstat; + mnt3svc_submit_reply (req, (void *)&res, + (mnt3_serializer)xdr_serialize_mountres3); + + return 0; +} + + +mountstat3 +mnt3svc_errno_to_mnterr (int32_t errnum) +{ + mountstat3 stat; + + switch (errnum) { + + case 0: + stat = MNT3_OK; + break; + case ENOENT: + stat = MNT3ERR_NOENT; + break; + case EPERM: + stat = MNT3ERR_PERM; + break; + case EIO: + stat = MNT3ERR_IO; + break; + case EACCES: + stat = MNT3ERR_ACCES; + break; + case ENOTDIR: + stat = MNT3ERR_NOTDIR; + break; + case EINVAL: + stat = MNT3ERR_INVAL; + break; + case ENOSYS: + stat = MNT3ERR_NOTSUPP; + break; + case ENOMEM: + stat = MNT3ERR_SERVERFAULT; + break; + default: + stat = MNT3ERR_SERVERFAULT; + break; + } + + return stat; +} + + +mountres3 +mnt3svc_set_mountres3 (mountstat3 stat, struct nfs3_fh *fh, int *authflavor, + u_int aflen) +{ + mountres3 res = {0, }; + uint32_t fhlen = 0; + + res.fhs_status = stat; + fhlen = nfs3_fh_compute_size (fh); + res.mountres3_u.mountinfo.fhandle.fhandle3_len = fhlen; + res.mountres3_u.mountinfo.fhandle.fhandle3_val = (char *)fh; + res.mountres3_u.mountinfo.auth_flavors.auth_flavors_val = authflavor; + res.mountres3_u.mountinfo.auth_flavors.auth_flavors_len = aflen; + + return res; +} + +/* Read the rmtab from the store_handle and append (or not) the entries to the + * mountlist. + * + * Requires the store_handle to be locked. + */ +static int +__mount_read_rmtab (gf_store_handle_t *sh, struct list_head *mountlist, + gf_boolean_t append) +{ + int ret = 0; + unsigned int idx = 0; + struct mountentry *me = NULL, *tmp = NULL; + /* me->hostname is a char[MNTPATHLEN] */ + char key[MNTPATHLEN + 11]; + + GF_ASSERT (sh && mountlist); + + if (!gf_store_locked_local (sh)) { + gf_log (GF_MNT, GF_LOG_WARNING, "Not reading unlocked %s", + sh->path); + return -1; + } + + if (!append) { + list_for_each_entry_safe (me, tmp, mountlist, mlist) { + list_del (&me->mlist); + GF_FREE (me); + } + me = NULL; + } + + for (;;) { + char *value = NULL; + + if (me && append) { + /* do not add duplicates */ + list_for_each_entry (tmp, mountlist, mlist) { + if (!strcmp(tmp->hostname, me->hostname) && + !strcmp(tmp->exname, me->exname)) { + GF_FREE (me); + goto dont_add; + } + } + list_add_tail (&me->mlist, mountlist); + } else if (me) { + list_add_tail (&me->mlist, mountlist); + } + +dont_add: + me = GF_CALLOC (1, sizeof (*me), gf_nfs_mt_mountentry); + if (!me) { + gf_log (GF_MNT, GF_LOG_ERROR, "Out of memory"); + ret = -1; + goto out; + } + + INIT_LIST_HEAD (&me->mlist); + + snprintf (key, 9 + MNTPATHLEN, "hostname-%d", idx); + ret = gf_store_retrieve_value (sh, key, &value); + if (ret) + break; + strncpy (me->hostname, value, MNTPATHLEN); + GF_FREE (value); + + snprintf (key, 11 + MNTPATHLEN, "mountpoint-%d", idx); + ret = gf_store_retrieve_value (sh, key, &value); + if (ret) + break; + strncpy (me->exname, value, MNTPATHLEN); + GF_FREE (value); + + idx++; + gf_log (GF_MNT, GF_LOG_TRACE, "Read entries %s:%s", me->hostname, me->exname); + } + gf_log (GF_MNT, GF_LOG_DEBUG, "Read %d entries from '%s'", idx, sh->path); + GF_FREE (me); +out: + return ret; +} + +/* Overwrite the contents of the rwtab with te in-memory client list. + * Fail gracefully if the stora_handle is not locked. + */ +static void +__mount_rewrite_rmtab(struct mount3_state *ms, gf_store_handle_t *sh) +{ + struct mountentry *me = NULL; + char key[16]; + int fd, ret; + unsigned int idx = 0; + + if (!gf_store_locked_local (sh)) { + gf_log (GF_MNT, GF_LOG_WARNING, "Not modifying unlocked %s", + sh->path); + return; + } + + fd = gf_store_mkstemp (sh); + if (fd == -1) { + gf_log (GF_MNT, GF_LOG_ERROR, "Failed to open %s", sh->path); + return; + } + + list_for_each_entry (me, &ms->mountlist, mlist) { + snprintf (key, 16, "hostname-%d", idx); + ret = gf_store_save_value (fd, key, me->hostname); + if (ret) + goto fail; + + snprintf (key, 16, "mountpoint-%d", idx); + ret = gf_store_save_value (fd, key, me->exname); + if (ret) + goto fail; + + idx++; + } + + gf_log (GF_MNT, GF_LOG_DEBUG, "Updated rmtab with %d entries", idx); + + close (fd); + if (gf_store_rename_tmppath (sh)) + gf_log (GF_MNT, GF_LOG_ERROR, "Failed to overwrite rwtab %s", + sh->path); + + return; + +fail: + gf_log (GF_MNT, GF_LOG_ERROR, "Failed to update %s", sh->path); + close (fd); + gf_store_unlink_tmppath (sh); +} + +/* Read the rmtab into a clean ms->mountlist. + */ +static void +mount_read_rmtab (struct mount3_state *ms) +{ + gf_store_handle_t *sh = NULL; + struct nfs_state *nfs = NULL; + int ret; + + nfs = (struct nfs_state *)ms->nfsx->private; + + ret = gf_store_handle_new (nfs->rmtab, &sh); + if (ret) { + gf_log (GF_MNT, GF_LOG_WARNING, "Failed to open '%s'", + nfs->rmtab); + return; + } + + if (gf_store_lock (sh)) { + gf_log (GF_MNT, GF_LOG_WARNING, "Failed to lock '%s'", + nfs->rmtab); + goto out; + } + + __mount_read_rmtab (sh, &ms->mountlist, _gf_false); + gf_store_unlock (sh); + +out: + gf_store_handle_destroy (sh); +} + +/* Write the ms->mountlist to the rmtab. + * + * The rmtab could be empty, or it can exists and have been updated by a + * different storage server without our knowing. + * + * 1. takes the store_handle lock on the current rmtab + * - blocks if an other storage server rewrites the rmtab at the same time + * 2. [if new_rmtab] takes the store_handle lock on the new rmtab + * 3. reads/merges the entries from the current rmtab + * 4. [if new_rmtab] reads/merges the entries from the new rmtab + * 5. [if new_rmtab] writes the new rmtab + * 6. [if not new_rmtab] writes the current rmtab + * 7 [if new_rmtab] replaces nfs->rmtab to point to the new location + * 8. [if new_rmtab] releases the store_handle lock of the new rmtab + * 9. releases the store_handle lock of the old rmtab + */ +void +mount_rewrite_rmtab (struct mount3_state *ms, char *new_rmtab) +{ + gf_store_handle_t *sh = NULL, *nsh = NULL; + struct nfs_state *nfs = NULL; + int ret; + char *rmtab = NULL; + + nfs = (struct nfs_state *)ms->nfsx->private; + + ret = gf_store_handle_new (nfs->rmtab, &sh); + if (ret) { + gf_log (GF_MNT, GF_LOG_WARNING, "Failed to open '%s'", + nfs->rmtab); + return; + } + + if (gf_store_lock (sh)) { + gf_log (GF_MNT, GF_LOG_WARNING, "Not rewriting '%s'", + nfs->rmtab); + goto free_sh; + } + + if (new_rmtab) { + ret = gf_store_handle_new (new_rmtab, &nsh); + if (ret) { + gf_log (GF_MNT, GF_LOG_WARNING, "Failed to open '%s'", + new_rmtab); + goto unlock_sh; + } + + if (gf_store_lock (nsh)) { + gf_log (GF_MNT, GF_LOG_WARNING, "Not rewriting '%s'", + new_rmtab); + goto free_nsh; + } + } + + /* always read the currently used rmtab */ + __mount_read_rmtab (sh, &ms->mountlist, _gf_true); + + if (new_rmtab) { + /* read the new rmtab and write changes to the new location */ + __mount_read_rmtab (nsh, &ms->mountlist, _gf_true); + __mount_rewrite_rmtab (ms, nsh); + + /* replace the nfs->rmtab reference to the new rmtab */ + rmtab = gf_strdup(new_rmtab); + if (rmtab == NULL) { + gf_log (GF_MNT, GF_LOG_ERROR, "Out of memory, keeping " + "%s as rmtab", nfs->rmtab); + } else { + GF_FREE (nfs->rmtab); + nfs->rmtab = new_rmtab; + } + + gf_store_unlock (nsh); + } else { + /* rewrite the current (unchanged location) rmtab */ + __mount_rewrite_rmtab (ms, sh); + } + +free_nsh: + if (new_rmtab) + gf_store_handle_destroy (nsh); +unlock_sh: + gf_store_unlock (sh); +free_sh: + gf_store_handle_destroy (sh); +} + +/* Add a new NFS-client to the ms->mountlist and update the rmtab if we can. + * + * A NFS-client will only be removed from the ms->mountlist in case the + * NFS-client sends a unmount request. It is possible that a NFS-client + * crashed/rebooted had network loss or something else prevented the NFS-client + * to unmount cleanly. In this case, a duplicate entry would be added to the + * ms->mountlist, which is wrong and we should prevent. + * + * It is fully acceptible that the ms->mountlist is not 100% correct, this is a + * common issue for all(?) NFS-servers. + */ +int +mnt3svc_update_mountlist (struct mount3_state *ms, rpcsvc_request_t *req, + char *expname) +{ + struct mountentry *me = NULL; + struct mountentry *cur = NULL; + int ret = -1; + char *colon = NULL; + struct nfs_state *nfs = NULL; + gf_store_handle_t *sh = NULL; + + if ((!ms) || (!req) || (!expname)) + return -1; + + me = (struct mountentry *)GF_CALLOC (1, sizeof (*me), + gf_nfs_mt_mountentry); + if (!me) + return -1; + + nfs = (struct nfs_state *)ms->nfsx->private; + + ret = gf_store_handle_new (nfs->rmtab, &sh); + if (ret) { + gf_log (GF_MNT, GF_LOG_WARNING, "Failed to open '%s'", + nfs->rmtab); + goto free_err; + } + + strncpy (me->exname, expname, MNTPATHLEN); + + INIT_LIST_HEAD (&me->mlist); + /* Must get the IP or hostname of the client so we + * can map it into the mount entry. + */ + ret = rpcsvc_transport_peername (req->trans, me->hostname, MNTPATHLEN); + if (ret == -1) + goto free_err2; + + colon = strrchr (me->hostname, ':'); + if (colon) { + *colon = '\0'; + } + LOCK (&ms->mountlock); + { + /* in case locking fails, we just don't write the rmtab */ + if (gf_store_lock (sh)) { + gf_log (GF_MNT, GF_LOG_WARNING, "Failed to lock '%s'" + ", changes will not be written", nfs->rmtab); + } else { + __mount_read_rmtab (sh, &ms->mountlist, _gf_false); + } + + /* do not add duplicates */ + list_for_each_entry (cur, &ms->mountlist, mlist) { + if (!strcmp(cur->hostname, me->hostname) && + !strcmp(cur->exname, me->exname)) { + GF_FREE (me); + goto dont_add; + } + } + list_add_tail (&me->mlist, &ms->mountlist); + + /* only write the rmtab in case it was locked */ + if (gf_store_locked_local (sh)) + __mount_rewrite_rmtab (ms, sh); + } +dont_add: + if (gf_store_locked_local (sh)) + gf_store_unlock (sh); + + UNLOCK (&ms->mountlock); + +free_err2: + gf_store_handle_destroy (sh); + +free_err: + if (ret == -1) + GF_FREE (me); + + return ret; +} + + +int +__mnt3_get_volume_id (struct mount3_state *ms, xlator_t *mntxl, + uuid_t volumeid) +{ + int ret = -1; + struct mnt3_export *exp = NULL; + + if ((!ms) || (!mntxl)) + return ret; + + LOCK (&ms->mountlock); + list_for_each_entry (exp, &ms->exportlist, explist) { + if (exp->vol == mntxl) { + uuid_copy (volumeid, exp->volumeid); + ret = 0; + goto out; + } + } + +out: + UNLOCK (&ms->mountlock); + return ret; +} + + +int32_t +mnt3svc_lookup_mount_cbk (call_frame_t *frame, void *cookie, + xlator_t *this, int32_t op_ret, int32_t op_errno, + inode_t *inode, struct iatt *buf, dict_t *xattr, + struct iatt *postparent) +{ + mountres3 res = {0, }; + rpcsvc_request_t *req = NULL; + struct nfs3_fh fh = {{0}, }; + struct mount3_state *ms = NULL; + mountstat3 status = 0; + int autharr[10]; + int autharrlen = 0; + rpcsvc_t *svc = NULL; + xlator_t *mntxl = NULL; + uuid_t volumeid = {0, }; + char fhstr[1024], *path = NULL; + + req = (rpcsvc_request_t *)frame->local; + + if (!req) + return -1; + + mntxl = (xlator_t *)cookie; + ms = (struct mount3_state *)rpcsvc_request_program_private (req); + if (!ms) { + gf_log (GF_MNT, GF_LOG_ERROR, "mount state not found"); + op_ret = -1; + op_errno = EINVAL; + } + + if (op_ret == -1) { + gf_log (GF_NFS, GF_LOG_ERROR, "error=%s", strerror (op_errno)); + status = mnt3svc_errno_to_mnterr (op_errno); + } + if (status != MNT3_OK) + goto xmit_res; + + path = GF_CALLOC (PATH_MAX, sizeof (char), gf_nfs_mt_char); + if (!path) { + gf_log (GF_MNT, GF_LOG_ERROR, "Out of memory"); + goto xmit_res; + } + + snprintf (path, PATH_MAX, "/%s", mntxl->name); + mnt3svc_update_mountlist (ms, req, path); + GF_FREE (path); + if (gf_nfs_dvm_off (nfs_state (ms->nfsx))) { + fh = nfs3_fh_build_indexed_root_fh (ms->nfsx->children, mntxl); + goto xmit_res; + } + + __mnt3_get_volume_id (ms, mntxl, volumeid); + fh = nfs3_fh_build_uuid_root_fh (volumeid); + +xmit_res: + nfs3_fh_to_str (&fh, fhstr, sizeof (fhstr)); + gf_log (GF_MNT, GF_LOG_DEBUG, "MNT reply: fh %s, status: %d", fhstr, + status); + if (op_ret == 0) { + svc = rpcsvc_request_service (req); + autharrlen = rpcsvc_auth_array (svc, mntxl->name, autharr, + 10); + } + + res = mnt3svc_set_mountres3 (status, &fh, autharr, autharrlen); + mnt3svc_submit_reply (req, (void *)&res, + (mnt3_serializer)xdr_serialize_mountres3); + + return 0; +} + + +int +mnt3_match_dirpath_export (char *expname, char *dirpath) +{ + int ret = 0; + size_t dlen; + + if ((!expname) || (!dirpath)) + return 0; + + /* Some clients send a dirpath for mount that includes the slash at the + * end. String compare for searching the export will fail because our + * exports list does not include that slash. Remove the slash to + * compare. + */ + dlen = strlen (dirpath); + if (dlen && dirpath [dlen - 1] == '/') + dirpath [dlen - 1] = '\0'; + + if (dirpath[0] != '/') + expname++; + + if (strcmp (expname, dirpath) == 0) + ret = 1; + + return ret; +} + + +int +mnt3svc_mount_inode (rpcsvc_request_t *req, struct mount3_state *ms, + xlator_t * xl, inode_t *exportinode) +{ + int ret = -EFAULT; + nfs_user_t nfu = {0, }; + loc_t exportloc = {0, }; + + if ((!req) || (!xl) || (!ms) || (!exportinode)) + return ret; + + ret = nfs_inode_loc_fill (exportinode, &exportloc, NFS_RESOLVE_EXIST); + if (ret < 0) { + gf_log (GF_MNT, GF_LOG_ERROR, "Loc fill failed for export inode" + ": gfid %s, volume: %s", + uuid_utoa (exportinode->gfid), xl->name); + goto err; + } + + /* To service the mount request, all we need to do + * is to send a lookup fop that returns the stat + * for the root of the child volume. This is + * used to build the root fh sent to the client. + */ + nfs_request_user_init (&nfu, req); + ret = nfs_lookup (ms->nfsx, xl, &nfu, &exportloc, + mnt3svc_lookup_mount_cbk, (void *)req); + + nfs_loc_wipe (&exportloc); +err: + return ret; +} + + +/* For a volume mount request, we just have to create loc on the root inode, + * and send a lookup. In the lookup callback the mount reply is send along with + * the file handle. + */ +int +mnt3svc_volume_mount (rpcsvc_request_t *req, struct mount3_state *ms, + struct mnt3_export *exp) +{ + inode_t *exportinode = NULL; + int ret = -EFAULT; + uuid_t rootgfid = {0, }; + + if ((!req) || (!exp) || (!ms)) + return ret; + + rootgfid[15] = 1; + exportinode = inode_find (exp->vol->itable, rootgfid); + if (!exportinode) { + gf_log (GF_MNT, GF_LOG_ERROR, "Failed to get root inode"); + ret = -ENOENT; + goto err; + } + + ret = mnt3svc_mount_inode (req, ms, exp->vol, exportinode); + inode_unref (exportinode); + +err: + return ret; +} + + +/* The catch with directory exports is that the first component of the export + * name will be the name of the volume. + * Any lookup that needs to be performed to build the directory's file handle + * needs to start from the directory path from the root of the volume. For that + * we need to strip out the volume name first. + */ +char * +__volume_subdir (char *dirpath, char **volname) +{ + char *subdir = NULL; + int volname_len = 0; + + if (!dirpath) + return NULL; + + if (dirpath[0] == '/') + dirpath++; + + subdir = index (dirpath, (int)'/'); + if (!subdir) + goto out; + + if (!volname) + goto out; + + if (!*volname) + goto out; + + /* subdir points to the first / after the volume name while dirpath + * points to the first char of the volume name. + */ + volname_len = subdir - dirpath; + strncpy (*volname, dirpath, volname_len); + *(*volname + volname_len) = '\0'; +out: + return subdir; +} + + +void +mnt3_resolve_state_wipe (mnt3_resolve_t *mres) +{ + if (!mres) + return; + + nfs_loc_wipe (&mres->resolveloc); + GF_FREE (mres); + +} + + +/* Sets up the component argument to contain the next component in the path and + * sets up path as an absolute path starting from the next component. + */ +static char * +setup_next_component (char *path, size_t plen, char *component, size_t clen) +{ + char *comp = NULL; + char *nextcomp = NULL; + + if ((!path) || (!component)) + return NULL; + + strncpy (component, path, clen); + comp = index (component, (int)'/'); + if (!comp) + goto err; + + comp++; + nextcomp = index (comp, (int)'/'); + if (nextcomp) { + strncpy (path, nextcomp, plen); + *nextcomp = '\0'; + } else + path[0] = '\0'; + +err: + return comp; +} + +int32_t +mnt3_resolve_subdir_cbk (call_frame_t *frame, void *cookie, xlator_t *this, + int32_t op_ret, int32_t op_errno, inode_t *inode, + struct iatt *buf, dict_t *xattr, + struct iatt *postparent); + +/* There are multiple components in the directory export path and each one + * needs to be looked up one after the other. + */ +int +__mnt3_resolve_export_subdir_comp (mnt3_resolve_t *mres) +{ + char dupsubdir[MNTPATHLEN]; + char *nextcomp = NULL; + int ret = -EFAULT; + nfs_user_t nfu = {0, }; + uuid_t gfid = {0, }; + + if (!mres) + return ret; + + nextcomp = setup_next_component (mres->remainingdir, + sizeof (mres->remainingdir), + dupsubdir, sizeof (dupsubdir)); + if (!nextcomp) + goto err; + + /* Wipe the contents of the previous component */ + uuid_copy (gfid, mres->resolveloc.inode->gfid); + nfs_loc_wipe (&mres->resolveloc); + ret = nfs_entry_loc_fill (mres->exp->vol->itable, gfid, nextcomp, + &mres->resolveloc, NFS_RESOLVE_CREATE); + if ((ret < 0) && (ret != -2)) { + gf_log (GF_MNT, GF_LOG_ERROR, "Failed to resolve and create " + "inode: parent gfid %s, entry %s", + uuid_utoa (gfid), nextcomp); + ret = -EFAULT; + goto err; + } + + nfs_request_user_init (&nfu, mres->req); + ret = nfs_lookup (mres->mstate->nfsx, mres->exp->vol, &nfu, + &mres->resolveloc, mnt3_resolve_subdir_cbk, mres); + +err: + return ret; +} + + +int32_t +mnt3_resolve_subdir_cbk (call_frame_t *frame, void *cookie, xlator_t *this, + int32_t op_ret, int32_t op_errno, inode_t *inode, + struct iatt *buf, dict_t *xattr, + struct iatt *postparent) +{ + mnt3_resolve_t *mres = NULL; + mountstat3 mntstat = MNT3ERR_SERVERFAULT; + struct nfs3_fh fh = {{0}, }; + int autharr[10]; + int autharrlen = 0; + rpcsvc_t *svc = NULL; + mountres3 res = {0, }; + xlator_t *mntxl = NULL; + char *path = NULL; + + mres = frame->local; + mntxl = (xlator_t *)cookie; + if (op_ret == -1) { + gf_log (GF_NFS, GF_LOG_ERROR, "path=%s (%s)", + mres->resolveloc.path, strerror (op_errno)); + mntstat = mnt3svc_errno_to_mnterr (op_errno); + goto err; + } + + inode_link (mres->resolveloc.inode, mres->resolveloc.parent, + mres->resolveloc.name, buf); + + nfs3_fh_build_child_fh (&mres->parentfh, buf, &fh); + if (strlen (mres->remainingdir) <= 0) { + op_ret = -1; + mntstat = MNT3_OK; + path = GF_CALLOC (PATH_MAX, sizeof (char), gf_nfs_mt_char); + if (!path) { + gf_log (GF_MNT, GF_LOG_ERROR, "Memory allocation " + "failed"); + goto err; + } + snprintf (path, PATH_MAX, "/%s%s", mres->exp->vol->name, + mres->resolveloc.path); + mnt3svc_update_mountlist (mres->mstate, mres->req, + path); + GF_FREE (path); + } else { + mres->parentfh = fh; + op_ret = __mnt3_resolve_export_subdir_comp (mres); + if (op_ret < 0) + mntstat = mnt3svc_errno_to_mnterr (-op_ret); + } +err: + if (op_ret == -1) { + gf_log (GF_MNT, GF_LOG_DEBUG, "Mount reply status: %d", + mntstat); + svc = rpcsvc_request_service (mres->req); + autharrlen = rpcsvc_auth_array (svc, mntxl->name, autharr, + 10); + + res = mnt3svc_set_mountres3 (mntstat, &fh, autharr, autharrlen); + mnt3svc_submit_reply (mres->req, (void *)&res, + (mnt3_serializer)xdr_serialize_mountres3); + mnt3_resolve_state_wipe (mres); + } + + return 0; +} + + + +/* We will always have to perform a hard lookup on all the components of a + * directory export for a mount request because in the mount reply we need the + * file handle of the directory. Our file handle creation code is designed with + * the assumption that to build a child file/dir fh, we'll always have the + * parent dir's fh available so that we may copy the hash array of the previous + * dir levels. + * + * Since we do not store the file handles anywhere, for every mount request we + * must resolve the file handles of every component so that the parent dir file + * of the exported directory can be built. + */ +int +__mnt3_resolve_subdir (mnt3_resolve_t *mres) +{ + char dupsubdir[MNTPATHLEN]; + char *firstcomp = NULL; + int ret = -EFAULT; + nfs_user_t nfu = {0, }; + uuid_t rootgfid = {0, }; + + if (!mres) + return ret; + + firstcomp = setup_next_component (mres->remainingdir, + sizeof (mres->remainingdir), + dupsubdir, sizeof (dupsubdir)); + if (!firstcomp) + goto err; + + rootgfid[15] = 1; + ret = nfs_entry_loc_fill (mres->exp->vol->itable, rootgfid, firstcomp, + &mres->resolveloc, NFS_RESOLVE_CREATE); + if ((ret < 0) && (ret != -2)) { + gf_log (GF_MNT, GF_LOG_ERROR, "Failed to resolve and create " + "inode for volume root: %s", mres->exp->vol->name); + ret = -EFAULT; + goto err; + } + + nfs_request_user_init (&nfu, mres->req); + ret = nfs_lookup (mres->mstate->nfsx, mres->exp->vol, &nfu, + &mres->resolveloc, mnt3_resolve_subdir_cbk, mres); + +err: + return ret; +} + + +/** + * This function will verify if the client is allowed to mount + * the directory or not. Client's IP address will be compared with + * allowed IP list or range present in mnt3_export structure. + * + * @param req - RPC request. This structure contains client's IP address. + * @param export - mnt3_export structure. Contains allowed IP list/range. + * + * @return 0 - on Success and -EACCES on failure. + */ +int +mnt3_verify_auth (rpcsvc_request_t *req, struct mnt3_export *export) +{ + int retvalue = -EACCES; + int ret = 0; + int shiftbits = 0; + uint32_t ipv4netmask = 0; + uint32_t routingprefix = 0; + struct host_auth_spec *host = NULL; + struct sockaddr_in *client_addr = NULL; + struct sockaddr_in *allowed_addr = NULL; + struct addrinfo *allowed_addrinfo = NULL; + + /* Sanity check */ + if ((NULL == req) || + (NULL == req->trans) || + (NULL == export) || + (NULL == export->hostspec)) { + gf_log (GF_MNT, GF_LOG_ERROR, "Invalid argument"); + return retvalue; + } + + host = export->hostspec; + + + /* Client's IP address. */ + client_addr = (struct sockaddr_in *)(&(req->trans->peerinfo.sockaddr)); + + /* Try to see if the client IP matches the allowed IP list.*/ + while (NULL != host){ + GF_ASSERT (host->host_addr); + + if (NULL != allowed_addrinfo) { + freeaddrinfo (allowed_addrinfo); + allowed_addrinfo = NULL; + } + + /* Get the addrinfo for the allowed host (host_addr). */ + ret = getaddrinfo (host->host_addr, + NULL, + NULL, + &allowed_addrinfo); + if (0 != ret){ + gf_log (GF_MNT, GF_LOG_ERROR, "getaddrinfo: %s\n", + gai_strerror (ret)); + host = host->next; + + /* Failed to get IP addrinfo. Continue to check other + * allowed IPs in the list. + */ + continue; + } + + allowed_addr = (struct sockaddr_in *)(allowed_addrinfo->ai_addr); + + if (NULL == allowed_addr) { + gf_log (GF_MNT, GF_LOG_ERROR, "Invalid structure"); + break; + } + + if (AF_INET == allowed_addr->sin_family){ + if (IPv4_ADDR_SIZE < host->routeprefix) { + gf_log (GF_MNT, GF_LOG_ERROR, "invalid IP " + "configured for export-dir AUTH"); + host = host->next; + continue; + } + + /* -1 means no route prefix is provided. In this case + * the IP should be an exact match. Which is same as + * providing a route prefix of IPv4_ADDR_SIZE. + */ + if (-1 == host->routeprefix) { + routingprefix = IPv4_ADDR_SIZE; + } else { + routingprefix = host->routeprefix; + } + + /* Create a mask from the routing prefix. User provided + * CIDR address is split into IP address (host_addr) and + * routing prefix (routeprefix). This CIDR address may + * denote a single, distinct interface address or the + * beginning address of an entire network. + * + * e.g. the IPv4 block 192.168.100.0/24 represents the + * 256 IPv4 addresses from 192.168.100.0 to + * 192.168.100.255. + * Therefore to check if an IP matches 192.168.100.0/24 + * we should mask the IP with FFFFFF00 and compare it + * with host address part of CIDR. + */ + shiftbits = IPv4_ADDR_SIZE - routingprefix; + ipv4netmask = 0xFFFFFFFFUL << shiftbits; + + /* Mask both the IPs and then check if they match + * or not. */ + if (COMPARE_IPv4_ADDRS (allowed_addr, + client_addr, + ipv4netmask)){ + retvalue = 0; + break; + } + } + + /* Client IP didn't match the allowed IP. + * Check with the next allowed IP.*/ + host = host->next; + } + + if (NULL != allowed_addrinfo) { + freeaddrinfo (allowed_addrinfo); + } + + return retvalue; +} + +int +mnt3_resolve_subdir (rpcsvc_request_t *req, struct mount3_state *ms, + struct mnt3_export *exp, char *subdir) +{ + mnt3_resolve_t *mres = NULL; + int ret = -EFAULT; + struct nfs3_fh pfh = GF_NFS3FH_STATIC_INITIALIZER; + + if ((!req) || (!ms) || (!exp) || (!subdir)) + return ret; + + /* Need to check AUTH */ + if (NULL != exp->hostspec) { + ret = mnt3_verify_auth (req, exp); + if (0 != ret) { + gf_log (GF_MNT,GF_LOG_ERROR, + "AUTH verification failed"); + return ret; + } + } + + mres = GF_CALLOC (1, sizeof (mnt3_resolve_t), gf_nfs_mt_mnt3_resolve); + if (!mres) { + gf_log (GF_MNT, GF_LOG_ERROR, "Memory allocation failed"); + goto err; + } + + mres->exp = exp; + mres->mstate = ms; + mres->req = req; + strncpy (mres->remainingdir, subdir, MNTPATHLEN); + if (gf_nfs_dvm_off (nfs_state (ms->nfsx))) + pfh = nfs3_fh_build_indexed_root_fh (mres->mstate->nfsx->children, mres->exp->vol); + else + pfh = nfs3_fh_build_uuid_root_fh (exp->volumeid); + + mres->parentfh = pfh; + ret = __mnt3_resolve_subdir (mres); + if (ret < 0) { + gf_log (GF_MNT, GF_LOG_ERROR, "Failed to resolve export dir: %s" + , mres->exp->expname); + GF_FREE (mres); + } + +err: + return ret; +} + + +int +mnt3_resolve_export_subdir (rpcsvc_request_t *req, struct mount3_state *ms, + struct mnt3_export *exp) +{ + char *volume_subdir = NULL; + int ret = -EFAULT; + + if ((!req) || (!ms) || (!exp)) + return ret; + + volume_subdir = __volume_subdir (exp->expname, NULL); + if (!volume_subdir) + goto err; + + ret = mnt3_resolve_subdir (req, ms, exp, volume_subdir); + if (ret < 0) { + gf_log (GF_MNT, GF_LOG_ERROR, "Failed to resolve export dir: %s" + , exp->expname); + goto err; + } + +err: + return ret; +} + + +int +mnt3svc_mount (rpcsvc_request_t *req, struct mount3_state *ms, + struct mnt3_export *exp) +{ + int ret = -EFAULT; + + if ((!req) || (!ms) || (!exp)) + return ret; + + if (exp->exptype == MNT3_EXPTYPE_VOLUME) + ret = mnt3svc_volume_mount (req, ms, exp); + else if (exp->exptype == MNT3_EXPTYPE_DIR) + ret = mnt3_resolve_export_subdir (req, ms, exp); + + return ret; +} + + +/* mnt3_mntpath_to_xlator sets this to 1 if the mount is for a full +* volume or 2 for a subdir in the volume. +*/ +struct mnt3_export * +mnt3_mntpath_to_export (struct mount3_state *ms, char *dirpath) +{ + struct mnt3_export *exp = NULL; + struct mnt3_export *found = NULL; + + if ((!ms) || (!dirpath)) + return NULL; + + LOCK (&ms->mountlock); + list_for_each_entry (exp, &ms->exportlist, explist) { + + /* Search for the an exact match with the volume */ + if (mnt3_match_dirpath_export (exp->expname, dirpath)) { + found = exp; + gf_log (GF_MNT, GF_LOG_DEBUG, "Found export volume: " + "%s", exp->vol->name); + goto foundexp; + } + } + + gf_log (GF_MNT, GF_LOG_DEBUG, "Export not found"); +foundexp: + UNLOCK (&ms->mountlock); + return found; +} + + +int +mnt3_check_client_net (struct mount3_state *ms, rpcsvc_request_t *req, + xlator_t *targetxl) +{ + + rpcsvc_t *svc = NULL; + rpc_transport_t *trans = NULL; + struct sockaddr_storage sastorage = {0,}; + char peer[RPCSVC_PEER_STRLEN] = {0,}; + int ret = -1; + + if ((!ms) || (!req) || (!targetxl)) + return -1; + + svc = rpcsvc_request_service (req); + + trans = rpcsvc_request_transport (req); + ret = rpcsvc_transport_peeraddr (trans, peer, RPCSVC_PEER_STRLEN, + &sastorage, sizeof (sastorage)); + if (ret != 0) { + gf_log (GF_MNT, GF_LOG_WARNING, "Failed to get peer addr: %s", + gai_strerror (ret)); + } + + ret = rpcsvc_auth_check (svc, targetxl->name, trans); + if (ret == RPCSVC_AUTH_REJECT) { + gf_log (GF_MNT, GF_LOG_INFO, "Peer %s not allowed", peer); + goto err; + } + + ret = rpcsvc_transport_privport_check (svc, targetxl->name, + rpcsvc_request_transport (req)); + if (ret == RPCSVC_AUTH_REJECT) { + gf_log (GF_MNT, GF_LOG_INFO, "Peer %s rejected. Unprivileged " + "port not allowed", peer); + goto err; + } + + ret = 0; +err: + return ret; +} + + +int +mnt3_parse_dir_exports (rpcsvc_request_t *req, struct mount3_state *ms, + char *subdir) +{ + char volname[1024]; + struct mnt3_export *exp = NULL; + char *volname_ptr = NULL; + int ret = -1; + + if ((!ms) || (!subdir)) + return -1; + + volname_ptr = volname; + subdir = __volume_subdir (subdir, &volname_ptr); + if (!subdir) + goto err; + + exp = mnt3_mntpath_to_export (ms, volname); + if (!exp) + goto err; + + ret = mnt3_resolve_subdir (req, ms, exp, subdir); + if (ret < 0) { + gf_log (GF_MNT, GF_LOG_ERROR, "Failed to resolve export dir: %s" + , subdir); + goto err; + } + +err: + return ret; +} + + +int +mnt3_find_export (rpcsvc_request_t *req, char *path, struct mnt3_export **e) +{ + int ret = -EFAULT; + struct mount3_state *ms = NULL; + struct mnt3_export *exp = NULL; + + if ((!req) || (!path) || (!e)) + return -1; + + ms = (struct mount3_state *) rpcsvc_request_program_private (req); + if (!ms) { + gf_log (GF_MNT, GF_LOG_ERROR, "Mount state not present"); + rpcsvc_request_seterr (req, SYSTEM_ERR); + goto err; + } + + gf_log (GF_MNT, GF_LOG_DEBUG, "dirpath: %s", path); + exp = mnt3_mntpath_to_export (ms, path); + if (exp) { + ret = 0; + *e = exp; + goto err; + } + + if (!gf_mnt3_export_dirs(ms)) { + ret = -1; + goto err; + } + + ret = mnt3_parse_dir_exports (req, ms, path); + if (ret == 0) { + ret = -2; + goto err; + } + +err: + return ret; +} + + +int +mnt3svc_mnt (rpcsvc_request_t *req) +{ + struct iovec pvec = {0, }; + char path[MNTPATHLEN]; + int ret = -1; + struct mount3_state *ms = NULL; + mountstat3 mntstat = MNT3ERR_SERVERFAULT; + struct mnt3_export *exp = NULL; + struct nfs_state *nfs = NULL; + + if (!req) + return -1; + + pvec.iov_base = path; + pvec.iov_len = MNTPATHLEN; + ret = xdr_to_mountpath (pvec, req->msg[0]); + if (ret == -1) { + gf_log (GF_MNT, GF_LOG_ERROR, "Failed to decode args"); + rpcsvc_request_seterr (req, GARBAGE_ARGS); + goto rpcerr; + } + + ms = (struct mount3_state *)rpcsvc_request_program_private (req); + if (!ms) { + gf_log (GF_MNT, GF_LOG_ERROR, "Mount state not present"); + rpcsvc_request_seterr (req, SYSTEM_ERR); + ret = -1; + goto rpcerr; + } + + ret = 0; + nfs = (struct nfs_state *)ms->nfsx->private; + gf_log (GF_MNT, GF_LOG_DEBUG, "dirpath: %s", path); + ret = mnt3_find_export (req, path, &exp); + if (ret == -2) { + ret = 0; + goto rpcerr; + } else if (ret < 0) { + ret = -1; + mntstat = MNT3ERR_NOENT; + goto mnterr; + } + + if (!nfs_subvolume_started (nfs, exp->vol)) { + gf_log (GF_MNT, GF_LOG_DEBUG, "Volume %s not started", + exp->vol->name); + ret = -1; + mntstat = MNT3ERR_NOENT; + goto mnterr; + } + + ret = mnt3_check_client_net (ms, req, exp->vol); + if (ret == RPCSVC_AUTH_REJECT) { + mntstat = MNT3ERR_ACCES; + gf_log (GF_MNT, GF_LOG_DEBUG, "Client mount not allowed"); + ret = -1; + goto mnterr; + } + + ret = mnt3svc_mount (req, ms, exp); + if (ret < 0) + mntstat = mnt3svc_errno_to_mnterr (-ret); +mnterr: + if (ret < 0) { + mnt3svc_mnt_error_reply (req, mntstat); + ret = 0; + } + +rpcerr: + return ret; +} + + +int +mnt3svc_null (rpcsvc_request_t *req) +{ + struct iovec dummyvec = {0, }; + + if (!req) { + gf_log (GF_MNT, GF_LOG_ERROR, "Got NULL request!"); + return 0; + } + rpcsvc_submit_generic (req, &dummyvec, 1, NULL, 0, NULL); + return 0; +} + + +mountlist +__build_mountlist (struct mount3_state *ms, int *count) +{ + struct mountbody *mlist = NULL; + struct mountbody *prev = NULL; + struct mountbody *first = NULL; + size_t namelen = 0; + int ret = -1; + struct mountentry *me = NULL; + + if ((!ms) || (!count)) + return NULL; + + /* read rmtab, other peers might have updated it */ + mount_read_rmtab(ms); + + *count = 0; + gf_log (GF_MNT, GF_LOG_DEBUG, "Building mount list:"); + list_for_each_entry (me, &ms->mountlist, mlist) { + namelen = strlen (me->exname); + mlist = GF_CALLOC (1, sizeof (*mlist), gf_nfs_mt_mountbody); + if (!mlist) { + gf_log (GF_MNT, GF_LOG_ERROR, "Memory allocation" + " failed"); + goto free_list; + } + if (!first) + first = mlist; + + mlist->ml_directory = GF_CALLOC (namelen + 2, sizeof (char), + gf_nfs_mt_char); + if (!mlist->ml_directory) { + gf_log (GF_MNT, GF_LOG_ERROR, "Memory allocation" + " failed"); + goto free_list; + } + + strcpy (mlist->ml_directory, me->exname); + + namelen = strlen (me->hostname); + mlist->ml_hostname = GF_CALLOC (namelen + 2, sizeof (char), + gf_nfs_mt_char); + if (!mlist->ml_hostname) { + gf_log (GF_MNT, GF_LOG_ERROR, "Memory allocation" + " failed"); + goto free_list; + } + + strcat (mlist->ml_hostname, me->hostname); + + gf_log (GF_MNT, GF_LOG_DEBUG, "mount entry: dir: %s, host: %s", + mlist->ml_directory, mlist->ml_hostname); + if (prev) { + prev->ml_next = mlist; + prev = mlist; + } else + prev = mlist; + + (*count)++; + } + + ret = 0; + +free_list: + if (ret == -1) { + xdr_free_mountlist (first); + first = NULL; + } + + return first; +} + + +mountlist +mnt3svc_build_mountlist (struct mount3_state *ms, int *count) +{ + struct mountbody *first = NULL; + + LOCK (&ms->mountlock); + { + first = __build_mountlist (ms, count); + } + UNLOCK (&ms->mountlock); + + return first; +} + + +int +mnt3svc_dump (rpcsvc_request_t *req) +{ + int ret = -1; + struct mount3_state *ms = NULL; + mountlist mlist; + mountstat3 mstat = 0; + mnt3_serializer sfunc = NULL; + void *arg = NULL; + + + if (!req) + return -1; + + ms = (struct mount3_state *)rpcsvc_request_program_private (req); + if (!ms) { + rpcsvc_request_seterr (req, SYSTEM_ERR); + goto rpcerr; + } + + sfunc = (mnt3_serializer)xdr_serialize_mountlist; + mlist = mnt3svc_build_mountlist (ms, &ret); + arg = &mlist; + + if (!mlist) { + if (ret != 0) { + rpcsvc_request_seterr (req, SYSTEM_ERR); + ret = -1; + goto rpcerr; + } else { + arg = &mstat; + sfunc = (mnt3_serializer)xdr_serialize_mountstat3; + } + } + + mnt3svc_submit_reply (req, arg, sfunc); + + xdr_free_mountlist (mlist); + ret = 0; + +rpcerr: + return ret; +} + + +int +mnt3svc_umount (struct mount3_state *ms, char *dirpath, char *hostname) +{ + struct mountentry *me = NULL; + int ret = -1; + gf_store_handle_t *sh = NULL; + struct nfs_state *nfs = NULL; + + if ((!ms) || (!dirpath) || (!hostname)) + return -1; + + nfs = (struct nfs_state *)ms->nfsx->private; + + ret = gf_store_handle_new (nfs->rmtab, &sh); + if (ret) { + gf_log (GF_MNT, GF_LOG_WARNING, "Failed to open '%s'", + nfs->rmtab); + return 0; + } + + ret = gf_store_lock (sh); + if (ret) { + goto out_free; + } + + LOCK (&ms->mountlock); + { + __mount_read_rmtab (sh, &ms->mountlist, _gf_false); + if (list_empty (&ms->mountlist)) { + ret = 0; + goto out_unlock; + } + + ret = -1; + list_for_each_entry (me, &ms->mountlist, mlist) { + if ((strcmp (me->exname, dirpath) == 0) && + (strcmp (me->hostname, hostname) == 0)) { + ret = 0; + break; + } + } + + /* Need this check here because at the end of the search me + * might still be pointing to the last entry, which may not be + * the one we're looking for. + */ + if (ret == -1) {/* Not found in list. */ + gf_log (GF_MNT, GF_LOG_TRACE, "Export not found"); + goto out_unlock; + } + + if (!me) + goto out_unlock; + + gf_log (GF_MNT, GF_LOG_DEBUG, "Unmounting: dir %s, host: %s", + me->exname, me->hostname); + + list_del (&me->mlist); + GF_FREE (me); + __mount_rewrite_rmtab (ms, sh); + } +out_unlock: + UNLOCK (&ms->mountlock); + gf_store_unlock (sh); +out_free: + gf_store_handle_destroy (sh); + return ret; +} + + +int +mnt3svc_umnt (rpcsvc_request_t *req) +{ + char hostname[MNTPATHLEN]; + char dirpath[MNTPATHLEN]; + struct iovec pvec = {0, }; + int ret = -1; + struct mount3_state *ms = NULL; + mountstat3 mstat = MNT3_OK; + char *colon = NULL; + + if (!req) + return -1; + + /* Remove the mount point from the exports list. */ + pvec.iov_base = dirpath; + pvec.iov_len = MNTPATHLEN; + ret = xdr_to_mountpath (pvec, req->msg[0]); + if (ret == -1) { + gf_log (GF_MNT, GF_LOG_ERROR, "Failed decode args"); + rpcsvc_request_seterr (req, GARBAGE_ARGS); + goto rpcerr; + } + + ms = (struct mount3_state *)rpcsvc_request_program_private (req); + if (!ms) { + gf_log (GF_MNT, GF_LOG_ERROR, "Mount state not present"); + rpcsvc_request_seterr (req, SYSTEM_ERR); + ret = -1; + goto rpcerr; + } + + ret = rpcsvc_transport_peername (req->trans, hostname, MNTPATHLEN); + if (ret != 0) { + gf_log (GF_MNT, GF_LOG_ERROR, "Failed to get remote name: %s", + gai_strerror (ret)); + goto rpcerr; + } + + colon = strrchr (hostname, ':'); + if (colon) { + *colon= '\0'; + } + gf_log (GF_MNT, GF_LOG_DEBUG, "dirpath: %s, hostname: %s", dirpath, + hostname); + ret = mnt3svc_umount (ms, dirpath, hostname); + + if (ret == -1) { + ret = 0; + mstat = MNT3ERR_NOENT; + } + /* FIXME: also take care of the corner case where the + * client was resolvable at mount but not at the umount - vice-versa. + */ + mnt3svc_submit_reply (req, &mstat, + (mnt3_serializer)xdr_serialize_mountstat3); + +rpcerr: + return ret; +} + + +int +__mnt3svc_umountall (struct mount3_state *ms) +{ + struct mountentry *me = NULL; + struct mountentry *tmp = NULL; + + if (!ms) + return -1; + + if (list_empty (&ms->mountlist)) + return 0; + + list_for_each_entry_safe (me, tmp, &ms->mountlist, mlist) { + list_del (&me->mlist); + GF_FREE (me); + } + + return 0; +} + + +int +mnt3svc_umountall (struct mount3_state *ms) +{ + int ret = -1; + if (!ms) + return -1; + + LOCK (&ms->mountlock); + { + ret = __mnt3svc_umountall (ms); + } + UNLOCK (&ms->mountlock); + + return ret; +} + + +int +mnt3svc_umntall (rpcsvc_request_t *req) +{ + int ret = RPCSVC_ACTOR_ERROR; + struct mount3_state *ms = NULL; + mountstat3 mstat = MNT3_OK; + + if (!req) + return ret; + + ms = (struct mount3_state *)rpcsvc_request_program_private (req); + if (!ms) { + gf_log (GF_MNT, GF_LOG_ERROR, "Mount state not present"); + rpcsvc_request_seterr (req, SYSTEM_ERR); + goto rpcerr; + } + + mnt3svc_umountall (ms); + mnt3svc_submit_reply (req, &mstat, + (mnt3_serializer)xdr_serialize_mountstat3); + + ret = RPCSVC_ACTOR_SUCCESS; +rpcerr: + return ret; +} + + +exports +mnt3_xlchildren_to_exports (rpcsvc_t *svc, struct mount3_state *ms) +{ + struct exportnode *elist = NULL; + struct exportnode *prev = NULL; + struct exportnode *first = NULL; + size_t namelen = 0; + int ret = -1; + char *addrstr = NULL; + struct mnt3_export *ent = NULL; + struct nfs_state *nfs = NULL; + + if ((!ms) || (!svc)) + return NULL; + + nfs = (struct nfs_state *)ms->nfsx->private; + if (!nfs) + return NULL; + + LOCK (&ms->mountlock); + list_for_each_entry(ent, &ms->exportlist, explist) { + + /* If volume is not started yet, do not list it for tools like + * showmount. + */ + if (!nfs_subvolume_started (nfs, ent->vol)) + continue; + + namelen = strlen (ent->expname) + 1; + elist = GF_CALLOC (1, sizeof (*elist), gf_nfs_mt_exportnode); + if (!elist) { + gf_log (GF_MNT, GF_LOG_ERROR, "Memory allocation" + " failed"); + goto free_list; + } + if (!first) + first = elist; + elist->ex_dir = GF_CALLOC (namelen + 2, sizeof (char), + gf_nfs_mt_char); + if (!elist->ex_dir) { + gf_log (GF_MNT, GF_LOG_ERROR, "Memory allocation" + " failed"); + goto free_list; + } + strcpy (elist->ex_dir, ent->expname); + + addrstr = rpcsvc_volume_allowed (svc->options, + ent->vol->name); + elist->ex_groups = GF_CALLOC (1, sizeof (struct groupnode), + gf_nfs_mt_groupnode); + if (!elist->ex_groups) { + gf_log (GF_MNT, GF_LOG_ERROR, "Memory allocation" + " failed"); + goto free_list; + } + /*This check has to be done after checking + * elist->ex_groups allocation check to avoid resource leak; + */ + if (addrstr) + addrstr = gf_strdup (addrstr); + else + addrstr = gf_strdup ("No Access"); + + if (!addrstr) { + goto free_list; + } + elist->ex_groups->gr_name = addrstr; + if (prev) { + prev->ex_next = elist; + prev = elist; + } else + prev = elist; + } + + ret = 0; + +free_list: + UNLOCK (&ms->mountlock); + if (ret == -1) { + xdr_free_exports_list (first); + first = NULL; + } + + return first; +} + + +int +mnt3svc_export (rpcsvc_request_t *req) +{ + struct mount3_state *ms = NULL; + exports elist = NULL; + int ret = -1; + + if (!req) + return -1; + + ms = (struct mount3_state *)rpcsvc_request_program_private (req); + if (!ms) { + gf_log (GF_MNT, GF_LOG_ERROR, "mount state not found"); + rpcsvc_request_seterr (req, SYSTEM_ERR); + goto err; + } + + /* Using the children translator names, build the export list */ + elist = mnt3_xlchildren_to_exports (rpcsvc_request_service (req), + ms); + /* Do not return error when exports list is empty. An exports list can + * be empty when no subvolumes have come up. No point returning error + * and confusing the user. + if (!elist) { + gf_log (GF_MNT, GF_LOG_ERROR, "Failed to build exports list"); + nfs_rpcsvc_request_seterr (req, SYSTEM_ERR); + goto err; + } + */ + + /* Note how the serializer is passed to the generic reply function. */ + mnt3svc_submit_reply (req, &elist, + (mnt3_serializer)xdr_serialize_exports); + + xdr_free_exports_list (elist); + ret = 0; +err: + return ret; +} + +/* just declaring, definition is way down below */ +rpcsvc_program_t mnt3prog; + +/* nfs3_rootfh used by mount3udp thread needs to access mount3prog.private + * directly as we don't have nfs xlator pointer to dereference it. But thats OK + */ + +struct nfs3_fh * +nfs3_rootfh (char* path) +{ + struct mount3_state *ms = NULL; + struct nfs3_fh *fh = NULL; + struct mnt3_export *exp = NULL; + inode_t *inode = NULL; + char *tmp = NULL; + + ms = mnt3prog.private; + exp = mnt3_mntpath_to_export (ms, path); + if (exp == NULL) + goto err; + + tmp = (char *)path; + tmp = strchr (tmp, '/'); + if (tmp == NULL) + tmp = "/"; + + inode = inode_from_path (exp->vol->itable, tmp); + if (inode == NULL) + goto err; + + fh = GF_CALLOC (1, sizeof(*fh), gf_nfs_mt_nfs3_fh); + if (fh == NULL) + goto err; + nfs3_build_fh (inode, exp->volumeid, fh); + +err: + if (inode) + inode_unref (inode); + return fh; +} + +int +mount3udp_add_mountlist (char *host, dirpath *expname) +{ + struct mountentry *me = NULL; + struct mount3_state *ms = NULL; + char *export = NULL; + + ms = mnt3prog.private; + me = GF_CALLOC (1, sizeof (*me), gf_nfs_mt_mountentry); + if (!me) + return -1; + export = (char *)expname; + while (*export == '/') + export++; + + strncpy (me->exname, export, MNTPATHLEN); + strncpy (me->hostname, host, MNTPATHLEN); + INIT_LIST_HEAD (&me->mlist); + LOCK (&ms->mountlock); + { + list_add_tail (&me->mlist, &ms->mountlist); + mount_rewrite_rmtab(ms, NULL); + } + UNLOCK (&ms->mountlock); + return 0; +} + +int +mount3udp_delete_mountlist (char *hostname, dirpath *expname) +{ + struct mount3_state *ms = NULL; + char *export = NULL; + + ms = mnt3prog.private; + export = (char *)expname; + while (*export == '/') + export++; + mnt3svc_umount (ms, export, hostname); + return 0; +} + +/** + * This function will parse the hostip (IP addres, IP range, or hostname) + * and fill the host_auth_spec structure. + * + * @param hostspec - struct host_auth_spec + * @param hostip - IP address, IP range (CIDR format) or hostname + * + * @return 0 - on success and -1 on failure + */ +int +mnt3_export_fill_hostspec (struct host_auth_spec* hostspec, const char* hostip) +{ + char *ipdupstr = NULL; + char *savptr = NULL; + char *ip = NULL; + char *token = NULL; + int ret = -1; + + /* Create copy of the string so that the source won't change + */ + ipdupstr = gf_strdup (hostip); + if (NULL == ipdupstr) { + gf_log (GF_MNT, GF_LOG_ERROR, "Memory allocation failed"); + goto err; + } + + ip = strtok_r (ipdupstr, "/", &savptr); + hostspec->host_addr = gf_strdup (ip); + if (NULL == hostspec->host_addr) { + gf_log (GF_MNT, GF_LOG_ERROR, "Memory allocation failed"); + goto err; + } + + /* Check if the IP is in <IP address> / <Range> format. + * If yes, then strip the range and store it separately. + */ + token = strtok_r (NULL, "/", &savptr); + + if (NULL == token) { + hostspec->routeprefix = -1; + } else { + hostspec->routeprefix = atoi (token); + } + + // success + ret = 0; +err: + if (NULL != ipdupstr) { + GF_FREE (ipdupstr); + } + return ret; +} + + +/** + * This function will parse the AUTH parameter passed along with + * "export-dir" option. If AUTH parameter is present then it will be + * stripped from exportpath and stored in mnt3_export (exp) structure. + * + * @param exp - mnt3_export structure. Holds information needed for mount. + * @param exportpath - Value of "export-dir" key. Holds both export path + * and AUTH parameter for the path. + * exportpath format: <abspath>[(hostdesc[|hostspec|...])] + * + * @return This function will return 0 on success and -1 on failure. + */ +int +mnt3_export_parse_auth_param (struct mnt3_export* exp, char* exportpath) +{ + char *token = NULL; + char *savPtr = NULL; + char *hostip = NULL; + struct host_auth_spec *host = NULL; + int ret = 0; + + /* Using exportpath directly in strtok_r because we want + * to strip off AUTH parameter from exportpath. */ + token = strtok_r (exportpath, "(", &savPtr); + + /* Get the next token, which will be the AUTH parameter. */ + token = strtok_r (NULL, ")", &savPtr); + + if (NULL == token) { + /* If AUTH is not present then we should return success. */ + return 0; + } + + /* Free any previously allocated hostspec structure. */ + if (NULL != exp->hostspec) { + GF_FREE (exp->hostspec); + exp->hostspec = NULL; + } + + exp->hostspec = GF_CALLOC (1, + sizeof (*(exp->hostspec)), + gf_nfs_mt_auth_spec); + if (NULL == exp->hostspec){ + gf_log (GF_MNT, GF_LOG_ERROR, "Memory allocation failed"); + return -1; + } + + /* AUTH parameter can have multiple entries. For each entry + * a host_auth_spec structure is created. */ + host = exp->hostspec; + + hostip = strtok_r (token, "|", &savPtr); + + /* Parse all AUTH parameters separated by '|' */ + while (NULL != hostip){ + ret = mnt3_export_fill_hostspec (host, hostip); + if (0 != ret) { + gf_log(GF_MNT, GF_LOG_WARNING, + "Failed to parse hostspec: %s", hostip); + goto err; + } + + hostip = strtok_r (NULL, "|", &savPtr); + if (NULL == hostip) { + break; + } + + host->next = GF_CALLOC (1, sizeof (*(host)), + gf_nfs_mt_auth_spec); + if (NULL == host->next){ + gf_log (GF_MNT,GF_LOG_ERROR, + "Memory allocation failed"); + goto err; + } + host = host->next; + } + + /* In case of success return from here */ + return 0; +err: + /* In case of failure free up hostspec structure. */ + FREE_HOSTSPEC (exp); + + return -1; +} + +/** + * exportpath will also have AUTH options (ip address, subnet address or + * hostname) mentioned. + * exportpath format: <abspath>[(hostdesc[|hostspec|...])] + */ +struct mnt3_export * +mnt3_init_export_ent (struct mount3_state *ms, xlator_t *xl, char *exportpath, + uuid_t volumeid) +{ + struct mnt3_export *exp = NULL; + int alloclen = 0; + int ret = -1; + + if ((!ms) || (!xl)) + return NULL; + + exp = GF_CALLOC (1, sizeof (*exp), gf_nfs_mt_mnt3_export); + if (!exp) { + gf_log (GF_MNT, GF_LOG_ERROR, "Memory allocation failed"); + return NULL; + } + + if (NULL != exportpath) { + /* If exportpath is not NULL then we should check if AUTH + * parameter is present or not. If AUTH parameter is present + * then it will be stripped and stored in mnt3_export (exp) + * structure. + */ + if (0 != mnt3_export_parse_auth_param (exp, exportpath)){ + gf_log (GF_MNT, GF_LOG_ERROR, + "Failed to parse auth param"); + goto err; + } + } + + + INIT_LIST_HEAD (&exp->explist); + if (exportpath) + alloclen = strlen (xl->name) + 2 + strlen (exportpath); + else + alloclen = strlen (xl->name) + 2; + + exp->expname = GF_CALLOC (alloclen, sizeof (char), gf_nfs_mt_char); + if (!exp->expname) { + gf_log (GF_MNT, GF_LOG_ERROR, "Memory allocation failed"); + goto err; + } + + if (exportpath) { + gf_log (GF_MNT, GF_LOG_TRACE, "Initing dir export: %s:%s", + xl->name, exportpath); + exp->exptype = MNT3_EXPTYPE_DIR; + ret = snprintf (exp->expname, alloclen, "/%s%s", xl->name, + exportpath); + } else { + gf_log (GF_MNT, GF_LOG_TRACE, "Initing volume export: %s", + xl->name); + exp->exptype = MNT3_EXPTYPE_VOLUME; + ret = snprintf (exp->expname, alloclen, "/%s", xl->name); + } + if (ret < 0) { + gf_log (xl->name, GF_LOG_ERROR, + "Failed to set the export name"); + goto err; + } + /* Just copy without discrimination, we'll determine whether to + * actually use it when a mount request comes in and a file handle + * needs to be built. + */ + uuid_copy (exp->volumeid, volumeid); + exp->vol = xl; + + /* On success we should return from here*/ + return exp; +err: + /* On failure free exp and it's members.*/ + if (NULL != exp) { + mnt3_export_free (exp); + exp = NULL; + } + + return exp; +} + + +int +__mnt3_init_volume_direxports (struct mount3_state *ms, xlator_t *xlator, + char *optstr, uuid_t volumeid) +{ + struct mnt3_export *newexp = NULL; + int ret = -1; + char *savptr = NULL; + char *dupopt = NULL; + char *token = NULL; + + if ((!ms) || (!xlator) || (!optstr)) + return -1; + + dupopt = gf_strdup (optstr); + if (!dupopt) { + gf_log (GF_MNT, GF_LOG_ERROR, "gf_strdup failed"); + goto err; + } + + token = strtok_r (dupopt, ",", &savptr); + while (token) { + newexp = mnt3_init_export_ent (ms, xlator, token, volumeid); + if (!newexp) { + gf_log (GF_MNT, GF_LOG_ERROR, "Failed to init dir " + "export: %s", token); + ret = -1; + goto err; + } + + list_add_tail (&newexp->explist, &ms->exportlist); + token = strtok_r (NULL, ",", &savptr); + } + + ret = 0; +err: + GF_FREE (dupopt); + + return ret; +} + + +int +__mnt3_init_volume (struct mount3_state *ms, dict_t *opts, xlator_t *xlator) +{ + struct mnt3_export *newexp = NULL; + int ret = -1; + char searchstr[1024]; + char *optstr = NULL; + uuid_t volumeid = {0, }; + + if ((!ms) || (!xlator) || (!opts)) + return -1; + + uuid_clear (volumeid); + if (gf_nfs_dvm_off (nfs_state (ms->nfsx))) + goto no_dvm; + + ret = snprintf (searchstr, 1024, "nfs3.%s.volume-id", xlator->name); + if (ret < 0) { + gf_log (GF_MNT, GF_LOG_ERROR, "snprintf failed"); + ret = -1; + goto err; + } + + if (dict_get (opts, searchstr)) { + ret = dict_get_str (opts, searchstr, &optstr); + if (ret < 0) { + gf_log (GF_MNT, GF_LOG_ERROR, "Failed to read option" + ": %s", searchstr); + ret = -1; + goto err; + } + } else { + gf_log (GF_MNT, GF_LOG_ERROR, "DVM is on but volume-id not " + "given for volume: %s", xlator->name); + ret = -1; + goto err; + } + + if (optstr) { + ret = uuid_parse (optstr, volumeid); + if (ret < 0) { + gf_log (GF_MNT, GF_LOG_ERROR, "Failed to parse volume " + "UUID"); + ret = -1; + goto err; + } + } + +no_dvm: + ret = snprintf (searchstr, 1024, "nfs3.%s.export-dir", xlator->name); + if (ret < 0) { + gf_log (GF_MNT, GF_LOG_ERROR, "snprintf failed"); + ret = -1; + goto err; + } + + if (dict_get (opts, searchstr)) { + ret = dict_get_str (opts, searchstr, &optstr); + if (ret < 0) { + gf_log (GF_MNT, GF_LOG_ERROR, "Failed to read option: " + "%s", searchstr); + ret = -1; + goto err; + } + + ret = __mnt3_init_volume_direxports (ms, xlator, optstr, + volumeid); + if (ret == -1) { + gf_log (GF_MNT, GF_LOG_ERROR, "Dir export setup failed" + " for volume: %s", xlator->name); + goto err; + } + } + + if (ms->export_volumes) { + newexp = mnt3_init_export_ent (ms, xlator, NULL, volumeid); + if (!newexp) { + ret = -1; + goto err; + } + + list_add_tail (&newexp->explist, &ms->exportlist); + } + ret = 0; + + +err: + return ret; +} + + +int +__mnt3_init_volume_export (struct mount3_state *ms, dict_t *opts) +{ + int ret = -1; + char *optstr = NULL; + /* On by default. */ + gf_boolean_t boolt = _gf_true; + + if ((!ms) || (!opts)) + return -1; + + if (!dict_get (opts, "nfs3.export-volumes")) { + ret = 0; + goto err; + } + + ret = dict_get_str (opts, "nfs3.export-volumes", &optstr); + if (ret < 0) { + gf_log (GF_MNT, GF_LOG_ERROR, "Failed to read option: " + "nfs3.export-volumes"); + ret = -1; + goto err; + } + + ret = gf_string2boolean (optstr, &boolt); + if (ret < 0) { + gf_log (GF_MNT, GF_LOG_ERROR, "Failed to convert" + " string to boolean"); + } + +err: + if (boolt == _gf_false) { + gf_log (GF_MNT, GF_LOG_TRACE, "Volume exports disabled"); + ms->export_volumes = 0; + } else { + gf_log (GF_MNT, GF_LOG_TRACE, "Volume exports enabled"); + ms->export_volumes = 1; + } + + return ret; +} + + +int +__mnt3_init_dir_export (struct mount3_state *ms, dict_t *opts) +{ + int ret = -1; + char *optstr = NULL; + /* On by default. */ + gf_boolean_t boolt = _gf_true; + + if ((!ms) || (!opts)) + return -1; + + if (!dict_get (opts, "nfs3.export-dirs")) { + ret = 0; + goto err; + } + + ret = dict_get_str (opts, "nfs3.export-dirs", &optstr); + if (ret < 0) { + gf_log (GF_MNT, GF_LOG_ERROR, "Failed to read option: " + "nfs3.export-dirs"); + ret = -1; + goto err; + } + + ret = gf_string2boolean (optstr, &boolt); + if (ret < 0) { + gf_log (GF_MNT, GF_LOG_ERROR, "Failed to convert" + " string to boolean"); + } + +err: + if (boolt == _gf_false) { + gf_log (GF_MNT, GF_LOG_TRACE, "Dir exports disabled"); + ms->export_dirs = 0; + } else { + gf_log (GF_MNT, GF_LOG_TRACE, "Dir exports enabled"); + ms->export_dirs = 1; + } + + return ret; +} + + +int +mnt3_init_options (struct mount3_state *ms, dict_t *options) +{ + xlator_list_t *volentry = NULL; + int ret = -1; + + if ((!ms) || (!options)) + return -1; + + __mnt3_init_volume_export (ms, options); + __mnt3_init_dir_export (ms, options); + volentry = ms->nfsx->children; + while (volentry) { + gf_log (GF_MNT, GF_LOG_TRACE, "Initing options for: %s", + volentry->xlator->name); + ret = __mnt3_init_volume (ms, options, volentry->xlator); + if (ret < 0) { + gf_log (GF_MNT, GF_LOG_ERROR, "Volume init failed"); + goto err; + } + + volentry = volentry->next; + } + + ret = 0; +err: + return ret; +} + + +struct mount3_state * +mnt3_init_state (xlator_t *nfsx) +{ + struct mount3_state *ms = NULL; + int ret = -1; + + if (!nfsx) + return NULL; + + ms = GF_CALLOC (1, sizeof (*ms), gf_nfs_mt_mount3_state); + if (!ms) { + gf_log (GF_MNT, GF_LOG_ERROR, "Memory allocation failed"); + return NULL; + } + + ms->iobpool = nfsx->ctx->iobuf_pool; + ms->nfsx = nfsx; + INIT_LIST_HEAD (&ms->exportlist); + ret = mnt3_init_options (ms, nfsx->options); + if (ret < 0) { + gf_log (GF_MNT, GF_LOG_ERROR, "Options init failed"); + return NULL; + } + + INIT_LIST_HEAD (&ms->mountlist); + LOCK_INIT (&ms->mountlock); + + return ms; +} + +int +mount_init_state (xlator_t *nfsx) +{ + int ret = -1; + struct nfs_state *nfs = NULL; + + if (!nfsx) + goto out; + + nfs = (struct nfs_state *)nfs_state (nfsx); + /*Maintaining global state for MOUNT1 and MOUNT3*/ + nfs->mstate = mnt3_init_state (nfsx); + if (!nfs->mstate) { + gf_log (GF_NFS, GF_LOG_ERROR, "Failed to allocate" + "mount state"); + goto out; + } + ret = 0; +out: + return ret; +} + +rpcsvc_actor_t mnt3svc_actors[MOUNT3_PROC_COUNT] = { + {"NULL", MOUNT3_NULL, mnt3svc_null, NULL, 0, DRC_NA}, + {"MNT", MOUNT3_MNT, mnt3svc_mnt, NULL, 0, DRC_NA}, + {"DUMP", MOUNT3_DUMP, mnt3svc_dump, NULL, 0, DRC_NA}, + {"UMNT", MOUNT3_UMNT, mnt3svc_umnt, NULL, 0, DRC_NA}, + {"UMNTALL", MOUNT3_UMNTALL, mnt3svc_umntall, NULL, 0, DRC_NA}, + {"EXPORT", MOUNT3_EXPORT, mnt3svc_export, NULL, 0, DRC_NA} +}; + + + +/* Static init parts are assigned here, dynamic ones are done in + * mnt3svc_init and mnt3_init_state. + * Making MOUNT3 a synctask so that the blocking DNS calls during rpc auth + * gets offloaded to syncenv, keeping the main/poll thread unblocked + */ +rpcsvc_program_t mnt3prog = { + .progname = "MOUNT3", + .prognum = MOUNT_PROGRAM, + .progver = MOUNT_V3, + .progport = GF_MOUNTV3_PORT, + .actors = mnt3svc_actors, + .numactors = MOUNT3_PROC_COUNT, + .min_auth = AUTH_NULL, + .synctask = _gf_true, +}; + + + +rpcsvc_program_t * +mnt3svc_init (xlator_t *nfsx) +{ + struct mount3_state *mstate = NULL; + struct nfs_state *nfs = NULL; + dict_t *options = NULL; + char *portstr = NULL; + int ret = -1; + pthread_t udp_thread; + + if (!nfsx || !nfsx->private) + return NULL; + + nfs = (struct nfs_state *)nfsx->private; + + gf_log (GF_MNT, GF_LOG_DEBUG, "Initing Mount v3 state"); + mstate = (struct mount3_state *)nfs->mstate; + if (!mstate) { + gf_log (GF_MNT, GF_LOG_ERROR, "Mount v3 state init failed"); + goto err; + } + + mnt3prog.private = mstate; + options = dict_new (); + + ret = gf_asprintf (&portstr, "%d", GF_MOUNTV3_PORT); + if (ret == -1) + goto err; + + ret = dict_set_dynstr (options, "transport.socket.listen-port", portstr); + if (ret == -1) + goto err; + ret = dict_set_str (options, "transport-type", "socket"); + if (ret == -1) { + gf_log (GF_NFS, GF_LOG_ERROR, "dict_set_str error"); + goto err; + } + + if (nfs->allow_insecure) { + ret = dict_set_str (options, "rpc-auth-allow-insecure", "on"); + if (ret == -1) { + gf_log (GF_NFS, GF_LOG_ERROR, "dict_set_str error"); + goto err; + } + ret = dict_set_str (options, "rpc-auth.ports.insecure", "on"); + if (ret == -1) { + gf_log (GF_NFS, GF_LOG_ERROR, "dict_set_str error"); + goto err; + } + } + + ret= rpcsvc_create_listeners (nfs->rpcsvc, options, nfsx->name); + if (ret == -1) { + gf_log (GF_NFS, GF_LOG_ERROR, "Unable to create listeners"); + dict_unref (options); + goto err; + } + + if (nfs->mount_udp) { + pthread_create (&udp_thread, NULL, mount3udp_thread, NULL); + } + return &mnt3prog; +err: + return NULL; +} + + +rpcsvc_actor_t mnt1svc_actors[MOUNT1_PROC_COUNT] = { + {"NULL", MOUNT1_NULL, mnt3svc_null, NULL, 0, DRC_NA}, + {"MNT", MOUNT1_MNT, NULL, NULL, 0, DRC_NA }, + {"DUMP", MOUNT1_DUMP, mnt3svc_dump, NULL, 0, DRC_NA}, + {"UMNT", MOUNT1_UMNT, mnt3svc_umnt, NULL, 0, DRC_NA}, + {"UMNTALL", MOUNT1_UMNTALL, NULL, NULL, 0, DRC_NA}, + {"EXPORT", MOUNT1_EXPORT, mnt3svc_export, NULL, 0, DRC_NA} +}; + +rpcsvc_program_t mnt1prog = { + .progname = "MOUNT1", + .prognum = MOUNT_PROGRAM, + .progver = MOUNT_V1, + .progport = GF_MOUNTV1_PORT, + .actors = mnt1svc_actors, + .numactors = MOUNT1_PROC_COUNT, + .min_auth = AUTH_NULL, + .synctask = _gf_true, +}; + + +rpcsvc_program_t * +mnt1svc_init (xlator_t *nfsx) +{ + struct mount3_state *mstate = NULL; + struct nfs_state *nfs = NULL; + dict_t *options = NULL; + char *portstr = NULL; + int ret = -1; + + if (!nfsx || !nfsx->private) + return NULL; + + nfs = (struct nfs_state *)nfsx->private; + + gf_log (GF_MNT, GF_LOG_DEBUG, "Initing Mount v1 state"); + mstate = (struct mount3_state *)nfs->mstate; + if (!mstate) { + gf_log (GF_MNT, GF_LOG_ERROR, "Mount v3 state init failed"); + goto err; + } + + mnt1prog.private = mstate; + + options = dict_new (); + + ret = gf_asprintf (&portstr, "%d", GF_MOUNTV1_PORT); + if (ret == -1) + goto err; + + ret = dict_set_dynstr (options, "transport.socket.listen-port", portstr); + if (ret == -1) + goto err; + ret = dict_set_str (options, "transport-type", "socket"); + if (ret == -1) { + gf_log (GF_NFS, GF_LOG_ERROR, "dict_set_str error"); + goto err; + } + + if (nfs->allow_insecure) { + ret = dict_set_str (options, "rpc-auth-allow-insecure", "on"); + if (ret == -1) { + gf_log (GF_NFS, GF_LOG_ERROR, "dict_set_str error"); + goto err; + } + ret = dict_set_str (options, "rpc-auth.ports.insecure", "on"); + if (ret == -1) { + gf_log (GF_NFS, GF_LOG_ERROR, "dict_set_str error"); + goto err; + } + } + + ret = rpcsvc_create_listeners (nfs->rpcsvc, options, nfsx->name); + if (ret == -1) { + gf_log (GF_NFS, GF_LOG_ERROR, "Unable to create listeners"); + dict_unref (options); + goto err; + } + + return &mnt1prog; +err: + return NULL; +} + +int +mount_reconfigure_state (xlator_t *nfsx, dict_t *options) +{ + int ret = -1; + struct nfs_state *nfs = NULL; + struct mount3_state *ms = NULL; + struct mnt3_export *exp = NULL; + struct mnt3_export *texp = NULL; + + if ((!nfsx) || (!options)) + return (-1); + + nfs = (struct nfs_state *)nfs_state (nfsx); + if (!nfs) + return (-1); + + ms = nfs->mstate; + if (!ms) + return (-1); + + /* + * Free() up the old export list. mnt3_init_options() will + * rebuild the export list from scratch. Do it with locking + * to avoid unnecessary race conditions. + */ + LOCK (&ms->mountlock); + list_for_each_entry_safe (exp, texp, &ms->exportlist, explist) { + list_del (&exp->explist); + mnt3_export_free (exp); + } + ret = mnt3_init_options (ms, options); + UNLOCK (&ms->mountlock); + + if (ret < 0) { + gf_log (GF_MNT, GF_LOG_ERROR, "Options reconfigure failed"); + return (-1); + } + + return (0); +} |