X-Git-Url: https://git.whamcloud.com/?a=blobdiff_plain;f=lustre%2Fmds%2Fmds_lib.c;h=2a68fb591f0daad90f66943caa44be921a8f1419;hb=f494d16ef901fdeda89cc366185b1b30257b63c1;hp=c29851234f461c2336a00e216eca6bd623e5da58;hpb=dd69b18a3364a9cd34a24b0bcf78f18652e5e6f9;p=fs%2Flustre-release.git diff --git a/lustre/mds/mds_lib.c b/lustre/mds/mds_lib.c index c298512..2a68fb5 100644 --- a/lustre/mds/mds_lib.c +++ b/lustre/mds/mds_lib.c @@ -3,25 +3,30 @@ * * Copyright (c) 2003 Cluster File Systems, Inc. * - * This file is part of Lustre, http://www.lustre.org. + * This file is part of the Lustre file system, http://www.lustre.org + * Lustre is a trademark of Cluster File Systems, Inc. * - * Lustre is free software; you can redistribute it and/or - * modify it under the terms of version 2 of the GNU General Public - * License as published by the Free Software Foundation. + * You may have signed or agreed to another license before downloading + * this software. If so, you are bound by the terms and conditions + * of that agreement, and the following does not apply to you. See the + * LICENSE file included with this distribution for more information. * - * Lustre is distributed in the hope that it will be useful, - * but WITHOUT ANY WARRANTY; without even the implied warranty of - * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the - * GNU General Public License for more details. + * If you did not agree to a different license, then this copy of Lustre + * is open source software; you can redistribute it and/or modify it + * under the terms of version 2 of the GNU General Public License as + * published by the Free Software Foundation. * - * You should have received a copy of the GNU General Public License - * along with Lustre; if not, write to the Free Software - * Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA. + * In either case, Lustre is distributed in the hope that it will be + * useful, but WITHOUT ANY WARRANTY; without even the implied warranty + * of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + * license text for more details. */ #define DEBUG_SUBSYSTEM S_MDS +#ifdef HAVE_KERNEL_CONFIG_H #include +#endif #include #include #include @@ -45,187 +50,30 @@ #include #include -#include -#include +#include +#include #include "mds_internal.h" -#if LINUX_VERSION_CODE < KERNEL_VERSION(2,6,4) -struct group_info *groups_alloc(int ngroups) -{ - struct group_info *ginfo; - - LASSERT(ngroups <= NGROUPS_SMALL); - - OBD_ALLOC(ginfo, sizeof(*ginfo) + 1 * sizeof(gid_t *)); - if (!ginfo) - return NULL; - ginfo->ngroups = ngroups; - ginfo->nblocks = 1; - ginfo->blocks[0] = ginfo->small_block; - atomic_set(&ginfo->usage, 1); - - return ginfo; -} - -void groups_free(struct group_info *ginfo) -{ - LASSERT(ginfo->ngroups <= NGROUPS_SMALL); - LASSERT(ginfo->nblocks == 1); - LASSERT(ginfo->blocks[0] == ginfo->small_block); - - OBD_FREE(ginfo, sizeof(*ginfo) + 1 * sizeof(gid_t *)); -} - -/* for 2.4 the group number is small, so simply search the - * whole array. - */ -int groups_search(struct group_info *ginfo, gid_t grp) -{ - int i; - - if (!ginfo) - return 0; - - for (i = 0; i < ginfo->ngroups; i++) - if (GROUP_AT(ginfo, i) == grp) - return 1; - return 0; -} - -#else /* >= 2.6.4 */ - -void groups_sort(struct group_info *ginfo) -{ - int base, max, stride; - int gidsetsize = ginfo->ngroups; - - for (stride = 1; stride < gidsetsize; stride = 3 * stride + 1) - ; /* nothing */ - stride /= 3; - - while (stride) { - max = gidsetsize - stride; - for (base = 0; base < max; base++) { - int left = base; - int right = left + stride; - gid_t tmp = GROUP_AT(ginfo, right); - - while (left >= 0 && GROUP_AT(ginfo, left) > tmp) { - GROUP_AT(ginfo, right) = - GROUP_AT(ginfo, left); - right = left; - left -= stride; - } - GROUP_AT(ginfo, right) = tmp; - } - stride /= 3; - } -} - -int groups_search(struct group_info *ginfo, gid_t grp) +void mds_pack_inode2fid(struct ll_fid *fid, struct inode *inode) { - int left, right; - - if (!ginfo) - return 0; - - left = 0; - right = ginfo->ngroups; - while (left < right) { - int mid = (left + right) / 2; - int cmp = grp - GROUP_AT(ginfo, mid); - if (cmp > 0) - left = mid + 1; - else if (cmp < 0) - right = mid; - else - return 1; - } - return 0; -} -#endif - -void groups_from_buffer(struct group_info *ginfo, __u32 *gids) -{ - int i, ngroups = ginfo->ngroups; - - for (i = 0; i < ginfo->nblocks; i++) { - int count = min(NGROUPS_PER_BLOCK, ngroups); - - memcpy(ginfo->blocks[i], gids, count * sizeof(__u32)); - gids += NGROUPS_PER_BLOCK; - ngroups -= count; - } -} - -void mds_pack_dentry2id(struct obd_device *obd, - struct lustre_id *id, - struct dentry *dentry, - int fid) -{ - id_ino(id) = dentry->d_inum; - id_gen(id) = dentry->d_generation; - - if (fid) { - id_fid(id) = dentry->d_fid; - id_group(id) = dentry->d_mdsnum; - } -} - -void mds_pack_dentry2body(struct obd_device *obd, - struct mds_body *b, - struct dentry *dentry, - int fid) -{ - b->valid |= OBD_MD_FLID | OBD_MD_FLGENER | - OBD_MD_MDS; - - if (fid) - b->valid |= OBD_MD_FID; - - mds_pack_dentry2id(obd, &b->id1, dentry, fid); -} - -int mds_pack_inode2id(struct obd_device *obd, - struct lustre_id *id, - struct inode *inode, - int fid) -{ - int rc = 0; - ENTRY; - - if (fid) { - /* we have to avoid deadlock. */ - if (!down_trylock(&inode->i_sem)) { - rc = mds_read_inode_sid(obd, inode, id); - up(&inode->i_sem); - } else { - rc = mds_read_inode_sid(obd, inode, id); - } - } - - if (rc == 0) { - id_ino(id) = inode->i_ino; - id_gen(id) = inode->i_generation; - id_type(id) = (S_IFMT & inode->i_mode); - } - RETURN(rc); + fid->id = inode->i_ino; + fid->generation = inode->i_generation; + fid->f_type = (S_IFMT & inode->i_mode); } /* Note that we can copy all of the fields, just some will not be "valid" */ -void mds_pack_inode2body(struct obd_device *obd, struct mds_body *b, - struct inode *inode, int fid) +void mds_pack_inode2body(struct mds_body *b, struct inode *inode) { b->valid |= OBD_MD_FLID | OBD_MD_FLCTIME | OBD_MD_FLUID | - OBD_MD_FLGID | OBD_MD_FLFLAGS | OBD_MD_FLTYPE | - OBD_MD_FLMODE | OBD_MD_FLNLINK | OBD_MD_FLGENER | - OBD_MD_FLATIME | OBD_MD_FLMTIME; /* bug 2020 */ - - if (!S_ISREG(inode->i_mode)) { - b->valid |= OBD_MD_FLSIZE | OBD_MD_FLBLOCKS | - OBD_MD_FLATIME | OBD_MD_FLMTIME | - OBD_MD_FLRDEV; - } + OBD_MD_FLGID | OBD_MD_FLFLAGS | OBD_MD_FLTYPE | + OBD_MD_FLMODE | OBD_MD_FLNLINK | OBD_MD_FLGENER | + OBD_MD_FLATIME | OBD_MD_FLMTIME; /* bug 2020 */ + + if (!S_ISREG(inode->i_mode)) + b->valid |= OBD_MD_FLSIZE | OBD_MD_FLBLOCKS | OBD_MD_FLATIME | + OBD_MD_FLMTIME | OBD_MD_FLRDEV; + + b->ino = inode->i_ino; b->atime = LTIME_S(inode->i_atime); b->mtime = LTIME_S(inode->i_mtime); b->ctime = LTIME_S(inode->i_ctime); @@ -234,22 +82,12 @@ void mds_pack_inode2body(struct obd_device *obd, struct mds_body *b, b->blocks = inode->i_blocks; b->uid = inode->i_uid; b->gid = inode->i_gid; - b->flags = inode->i_flags; + b->flags = ll_inode_to_ext_flags(b->flags, inode->i_flags); b->rdev = inode->i_rdev; - /* Return the correct link count for orphan inodes */ - if (mds_inode_is_orphan(inode)) { - b->nlink = 0; - } else if (S_ISDIR(inode->i_mode)) { - b->nlink = 1; - } else { - b->nlink = inode->i_nlink; - } - - if (fid) - b->valid |= OBD_MD_FID; - - mds_pack_inode2id(obd, &b->id1, inode, fid); + b->nlink = mds_inode_is_orphan(inode) ? 0 : inode->i_nlink; + b->generation = inode->i_generation; + b->suppgid = -1; } /* unpacking */ @@ -265,7 +103,12 @@ static int mds_setattr_unpack(struct ptlrpc_request *req, int offset, if (rec == NULL) RETURN (-EFAULT); - r->ur_id1 = &rec->sa_id; + r->ur_uc.luc_fsuid = rec->sa_fsuid; + r->ur_uc.luc_fsgid = rec->sa_fsgid; + r->ur_uc.luc_cap = rec->sa_cap; + r->ur_uc.luc_suppgid1 = rec->sa_suppgid; + r->ur_uc.luc_suppgid2 = -1; + r->ur_fid1 = &rec->sa_fid; attr->ia_valid = rec->sa_valid; attr->ia_mode = rec->sa_mode; attr->ia_uid = rec->sa_uid; @@ -274,23 +117,22 @@ static int mds_setattr_unpack(struct ptlrpc_request *req, int offset, LTIME_S(attr->ia_atime) = rec->sa_atime; LTIME_S(attr->ia_mtime) = rec->sa_mtime; LTIME_S(attr->ia_ctime) = rec->sa_ctime; - attr->ia_attr_flags = rec->sa_attr_flags; + r->ur_flags = rec->sa_attr_flags; LASSERT_REQSWAB (req, offset + 1); - if (req->rq_reqmsg->bufcount > offset + 1) { - r->ur_eadata = lustre_msg_buf (req->rq_reqmsg, - offset + 1, 0); + if (lustre_msg_bufcount(req->rq_reqmsg) > offset + 1) { + r->ur_eadata = lustre_msg_buf(req->rq_reqmsg, offset + 1, 0); if (r->ur_eadata == NULL) - RETURN (-EFAULT); - r->ur_eadatalen = req->rq_reqmsg->buflens[offset + 1]; + RETURN(-EFAULT); + r->ur_eadatalen = lustre_msg_buflen(req->rq_reqmsg, offset + 1); } - if (req->rq_reqmsg->bufcount > offset + 2) { - r->ur_logcookies = lustre_msg_buf(req->rq_reqmsg, offset + 2, 0); + if (lustre_msg_bufcount(req->rq_reqmsg) > offset + 2) { + r->ur_logcookies = lustre_msg_buf(req->rq_reqmsg, offset + 2,0); if (r->ur_eadata == NULL) RETURN (-EFAULT); - r->ur_cookielen = req->rq_reqmsg->buflens[offset + 2]; + r->ur_cookielen = lustre_msg_buflen(req->rq_reqmsg, offset + 2); } RETURN(0); @@ -302,47 +144,42 @@ static int mds_create_unpack(struct ptlrpc_request *req, int offset, struct mds_rec_create *rec; ENTRY; - rec = lustre_swab_reqbuf (req, offset, sizeof (*rec), - lustre_swab_mds_rec_create); + rec = lustre_swab_reqbuf(req, offset, sizeof (*rec), + lustre_swab_mds_rec_create); if (rec == NULL) RETURN (-EFAULT); - r->ur_id1 = &rec->cr_id; - r->ur_id2 = &rec->cr_replayid; + r->ur_uc.luc_fsuid = rec->cr_fsuid; + r->ur_uc.luc_fsgid = rec->cr_fsgid; + r->ur_uc.luc_cap = rec->cr_cap; + r->ur_uc.luc_suppgid1 = rec->cr_suppgid; + r->ur_uc.luc_suppgid2 = -1; + r->ur_fid1 = &rec->cr_fid; + r->ur_fid2 = &rec->cr_replayfid; r->ur_mode = rec->cr_mode; r->ur_rdev = rec->cr_rdev; r->ur_time = rec->cr_time; r->ur_flags = rec->cr_flags; - LASSERT_REQSWAB (req, offset + 1); - r->ur_name = lustre_msg_string (req->rq_reqmsg, offset + 1, 0); + LASSERT_REQSWAB(req, offset + 1); + r->ur_name = lustre_msg_string(req->rq_reqmsg, offset + 1, 0); if (r->ur_name == NULL) RETURN (-EFAULT); - r->ur_namelen = req->rq_reqmsg->buflens[offset + 1]; - - LASSERT_REQSWAB (req, offset + 2); - if (req->rq_reqmsg->bufcount > offset + 2) { - if (S_ISLNK(r->ur_mode)) { - r->ur_tgt = lustre_msg_string(req->rq_reqmsg, - offset + 2, 0); - if (r->ur_tgt == NULL) - RETURN (-EFAULT); - r->ur_tgtlen = req->rq_reqmsg->buflens[offset + 2]; - } else if (S_ISDIR(r->ur_mode)) { - /* Stripe info for mkdir - just a 16bit integer */ - if (req->rq_reqmsg->buflens[offset + 2] != 2) { - CERROR("mkdir stripe info does not match " - "expected size %d vs 2\n", - req->rq_reqmsg->buflens[offset + 2]); - RETURN (-EINVAL); - } - r->ur_eadata = lustre_swab_buf (req->rq_reqmsg, - offset + 2, 2, __swab16s); - r->ur_eadatalen = req->rq_reqmsg->buflens[offset + 2]; - } else { - /* Hm, no other users so far? */ - LBUG(); - } + r->ur_namelen = lustre_msg_buflen(req->rq_reqmsg, offset + 1); + + LASSERT_REQSWAB(req, offset + 2); + if (lustre_msg_bufcount(req->rq_reqmsg) > offset + 2) { + /* NB for now, we only seem to pass NULL terminated symlink + * target strings here. If this ever changes, we'll have + * to stop checking for a buffer filled completely with a + * NULL terminated string here, and make the callers check + * depending on what they expect. We should probably stash + * it in r->ur_eadata in that case, so it's obvious... -eeb + */ + r->ur_tgt = lustre_msg_string(req->rq_reqmsg, offset + 2, 0); + if (r->ur_tgt == NULL) + RETURN (-EFAULT); + r->ur_tgtlen = lustre_msg_buflen(req->rq_reqmsg, offset + 2); } RETURN(0); } @@ -353,20 +190,25 @@ static int mds_link_unpack(struct ptlrpc_request *req, int offset, struct mds_rec_link *rec; ENTRY; - rec = lustre_swab_reqbuf (req, offset, sizeof (*rec), - lustre_swab_mds_rec_link); + rec = lustre_swab_reqbuf(req, offset, sizeof (*rec), + lustre_swab_mds_rec_link); if (rec == NULL) RETURN (-EFAULT); - r->ur_id1 = &rec->lk_id1; - r->ur_id2 = &rec->lk_id2; + r->ur_uc.luc_fsuid = rec->lk_fsuid; + r->ur_uc.luc_fsgid = rec->lk_fsgid; + r->ur_uc.luc_cap = rec->lk_cap; + r->ur_uc.luc_suppgid1 = rec->lk_suppgid1; + r->ur_uc.luc_suppgid2 = rec->lk_suppgid2; + r->ur_fid1 = &rec->lk_fid1; + r->ur_fid2 = &rec->lk_fid2; r->ur_time = rec->lk_time; - LASSERT_REQSWAB (req, offset + 1); - r->ur_name = lustre_msg_string (req->rq_reqmsg, offset + 1, 0); + LASSERT_REQSWAB(req, offset + 1); + r->ur_name = lustre_msg_string(req->rq_reqmsg, offset + 1, 0); if (r->ur_name == NULL) RETURN (-EFAULT); - r->ur_namelen = req->rq_reqmsg->buflens[offset + 1]; + r->ur_namelen = lustre_msg_buflen(req->rq_reqmsg, offset + 1); RETURN(0); } @@ -376,21 +218,26 @@ static int mds_unlink_unpack(struct ptlrpc_request *req, int offset, struct mds_rec_unlink *rec; ENTRY; - rec = lustre_swab_reqbuf (req, offset, sizeof (*rec), - lustre_swab_mds_rec_unlink); + rec = lustre_swab_reqbuf(req, offset, sizeof (*rec), + lustre_swab_mds_rec_unlink); if (rec == NULL) RETURN(-EFAULT); + r->ur_uc.luc_fsuid = rec->ul_fsuid; + r->ur_uc.luc_fsgid = rec->ul_fsgid; + r->ur_uc.luc_cap = rec->ul_cap; + r->ur_uc.luc_suppgid1 = rec->ul_suppgid; + r->ur_uc.luc_suppgid2 = -1; r->ur_mode = rec->ul_mode; - r->ur_id1 = &rec->ul_id1; - r->ur_id2 = &rec->ul_id2; + r->ur_fid1 = &rec->ul_fid1; + r->ur_fid2 = &rec->ul_fid2; r->ur_time = rec->ul_time; - LASSERT_REQSWAB (req, offset + 1); + LASSERT_REQSWAB(req, offset + 1); r->ur_name = lustre_msg_string(req->rq_reqmsg, offset + 1, 0); if (r->ur_name == NULL) RETURN(-EFAULT); - r->ur_namelen = req->rq_reqmsg->buflens[offset + 1]; + r->ur_namelen = lustre_msg_buflen(req->rq_reqmsg, offset + 1); RETURN(0); } @@ -400,26 +247,31 @@ static int mds_rename_unpack(struct ptlrpc_request *req, int offset, struct mds_rec_rename *rec; ENTRY; - rec = lustre_swab_reqbuf (req, offset, sizeof (*rec), - lustre_swab_mds_rec_rename); + rec = lustre_swab_reqbuf(req, offset, sizeof (*rec), + lustre_swab_mds_rec_rename); if (rec == NULL) RETURN(-EFAULT); - r->ur_id1 = &rec->rn_id1; - r->ur_id2 = &rec->rn_id2; + r->ur_uc.luc_fsuid = rec->rn_fsuid; + r->ur_uc.luc_fsgid = rec->rn_fsgid; + r->ur_uc.luc_cap = rec->rn_cap; + r->ur_uc.luc_suppgid1 = rec->rn_suppgid1; + r->ur_uc.luc_suppgid2 = rec->rn_suppgid2; + r->ur_fid1 = &rec->rn_fid1; + r->ur_fid2 = &rec->rn_fid2; r->ur_time = rec->rn_time; LASSERT_REQSWAB (req, offset + 1); r->ur_name = lustre_msg_string(req->rq_reqmsg, offset + 1, 0); if (r->ur_name == NULL) RETURN(-EFAULT); - r->ur_namelen = req->rq_reqmsg->buflens[offset + 1]; + r->ur_namelen = lustre_msg_buflen(req->rq_reqmsg, offset + 1); LASSERT_REQSWAB (req, offset + 2); r->ur_tgt = lustre_msg_string(req->rq_reqmsg, offset + 2, 0); if (r->ur_tgt == NULL) RETURN(-EFAULT); - r->ur_tgtlen = req->rq_reqmsg->buflens[offset + 2]; + r->ur_tgtlen = lustre_msg_buflen(req->rq_reqmsg, offset + 2); RETURN(0); } @@ -429,30 +281,35 @@ static int mds_open_unpack(struct ptlrpc_request *req, int offset, struct mds_rec_create *rec; ENTRY; - rec = lustre_swab_reqbuf (req, offset, sizeof (*rec), - lustre_swab_mds_rec_create); + rec = lustre_swab_reqbuf(req, offset, sizeof(*rec), + lustre_swab_mds_rec_create); if (rec == NULL) - RETURN (-EFAULT); + RETURN(-EFAULT); - r->ur_id1 = &rec->cr_id; - r->ur_id2 = &rec->cr_replayid; + r->ur_uc.luc_fsuid = rec->cr_fsuid; + r->ur_uc.luc_fsgid = rec->cr_fsgid; + r->ur_uc.luc_cap = rec->cr_cap; + r->ur_uc.luc_suppgid1 = rec->cr_suppgid; + r->ur_uc.luc_suppgid2 = -1; + r->ur_fid1 = &rec->cr_fid; + r->ur_fid2 = &rec->cr_replayfid; r->ur_mode = rec->cr_mode; r->ur_rdev = rec->cr_rdev; r->ur_time = rec->cr_time; r->ur_flags = rec->cr_flags; - LASSERT_REQSWAB (req, offset + 1); - r->ur_name = lustre_msg_string (req->rq_reqmsg, offset + 1, 0); + LASSERT_REQSWAB(req, offset + 1); + r->ur_name = lustre_msg_string(req->rq_reqmsg, offset + 1, 0); if (r->ur_name == NULL) - RETURN (-EFAULT); - r->ur_namelen = req->rq_reqmsg->buflens[offset + 1]; + RETURN(-EFAULT); + r->ur_namelen = lustre_msg_buflen(req->rq_reqmsg, offset + 1); - LASSERT_REQSWAB (req, offset + 2); - if (req->rq_reqmsg->bufcount > offset + 2) { + LASSERT_REQSWAB(req, offset + 2); + if (lustre_msg_bufcount(req->rq_reqmsg) > offset + 2) { r->ur_eadata = lustre_msg_buf(req->rq_reqmsg, offset + 2, 0); if (r->ur_eadata == NULL) RETURN (-EFAULT); - r->ur_eadatalen = req->rq_reqmsg->buflens[offset + 2]; + r->ur_eadatalen = lustre_msg_buflen(req->rq_reqmsg, offset + 2); } RETURN(0); } @@ -460,7 +317,7 @@ static int mds_open_unpack(struct ptlrpc_request *req, int offset, typedef int (*update_unpacker)(struct ptlrpc_request *req, int offset, struct mds_update_record *r); -static update_unpacker mds_unpackers[REINT_MAX + 1] = { +static update_unpacker mds_unpackers[REINT_MAX] = { [REINT_SETATTR] mds_setattr_unpack, [REINT_CREATE] mds_create_unpack, [REINT_LINK] mds_link_unpack, @@ -472,148 +329,74 @@ static update_unpacker mds_unpackers[REINT_MAX + 1] = { int mds_update_unpack(struct ptlrpc_request *req, int offset, struct mds_update_record *rec) { - __u32 *opcodep; - __u32 opcode; + mds_reint_t opcode, *opcodep; int rc; ENTRY; - /* - * NB don't lustre_swab_reqbuf() here. We're just taking a peek and we - * want to leave it to the specific unpacker once we've identified the - * message type. - */ - opcodep = lustre_msg_buf (req->rq_reqmsg, offset, sizeof(*opcodep)); + /* NB don't lustre_swab_reqbuf() here. We're just taking a peek + * and we want to leave it to the specific unpacker once we've + * identified the message type */ + opcodep = lustre_msg_buf(req->rq_reqmsg, offset, sizeof (*opcodep)); if (opcodep == NULL) RETURN(-EFAULT); opcode = *opcodep; - if (lustre_msg_swabbed (req->rq_reqmsg)) - __swab32s (&opcode); + if (lustre_msg_swabbed(req->rq_reqmsg)) + __swab32s(&opcode); - if (opcode > REINT_MAX || - mds_unpackers[opcode] == NULL) { - CERROR ("Unexpected opcode %d\n", opcode); + if (opcode >= REINT_MAX || mds_unpackers[opcode] == NULL) { + CERROR("Unexpected opcode %d\n", opcode); RETURN(-EFAULT); } - rec->ur_id1 = NULL; - rec->ur_id2 = NULL; rec->ur_opcode = opcode; - rc = mds_unpackers[opcode](req, offset, rec); + RETURN(rc); } -static inline void drop_ucred_ginfo(struct lvfs_ucred *ucred) +int mds_init_ucred(struct lvfs_ucred *ucred, struct ptlrpc_request *req, + int offset) { - if (ucred->luc_ginfo) { - put_group_info(ucred->luc_ginfo); - ucred->luc_ginfo = NULL; - } -} + struct mds_body *body = lustre_msg_buf(req->rq_reqmsg, offset, + sizeof(*body)); + struct mds_obd *mds = mds_req2mds(req); + int rc; -/* - * root could set any group_info if we allowed setgroups, while - * normal user only could 'reduce' their group members -- which - * is somewhat expensive. - */ -int mds_init_ucred(struct lvfs_ucred *ucred, struct mds_req_sec_desc *rsd) -{ - struct group_info *gnew; + LASSERT(body != NULL); /* previously verified & swabbed by caller */ - ENTRY; - LASSERT(ucred); - LASSERT(rsd); - - ucred->luc_fsuid = rsd->rsd_fsuid; - ucred->luc_fsgid = rsd->rsd_fsgid; - ucred->luc_cap = rsd->rsd_cap; - ucred->luc_uid = rsd->rsd_uid; - ucred->luc_ghash = mds_get_group_entry(NULL, rsd->rsd_uid); - ucred->luc_ginfo = NULL; - - if (ucred->luc_ghash && ucred->luc_ghash->ge_group_info) { - ucred->luc_ginfo = ucred->luc_ghash->ge_group_info; - get_group_info(ucred->luc_ginfo); +#ifdef CRAY_XT3 + if (req->rq_uid != LNET_UID_ANY) { + /* Non-root local cluster client */ + LASSERT (req->rq_uid != 0); + ucred->luc_fsuid = req->rq_uid; + } else +#endif + { + ucred->luc_fsuid = body->fsuid; + ucred->luc_fsgid = body->fsgid; + ucred->luc_cap = body->capability; } - /* everything is done if we don't allow set groups */ - if (!mds_allow_setgroups()) - RETURN(0); - - if (rsd->rsd_ngroups > LUSTRE_MAX_GROUPS) { - CERROR("client provide too many groups: %d\n", - rsd->rsd_ngroups); - drop_ucred_ginfo(ucred); - mds_put_group_entry(NULL, ucred->luc_ghash); - RETURN(-EFAULT); + ucred->luc_uce = upcall_cache_get_entry(mds->mds_group_hash, + ucred->luc_fsuid, + ucred->luc_fsgid, 1, + &body->suppgid); + if (IS_ERR(ucred->luc_uce)) { + rc = PTR_ERR(ucred->luc_uce); + ucred->luc_uce = NULL; + return rc; } - if (ucred->luc_uid == 0) { - if (rsd->rsd_ngroups == 0) { - drop_ucred_ginfo(ucred); - RETURN(0); - } - - gnew = groups_alloc(rsd->rsd_ngroups); - if (!gnew) { - CERROR("out of memory\n"); - drop_ucred_ginfo(ucred); - mds_put_group_entry(NULL, ucred->luc_ghash); - RETURN(-ENOMEM); - } - groups_from_buffer(gnew, rsd->rsd_groups); - /* can't rely on client to sort them */ - groups_sort(gnew); - - drop_ucred_ginfo(ucred); - ucred->luc_ginfo = gnew; - } else { - __u32 set = 0, cur = 0; - struct group_info *ginfo; - - /* if no group info in hash, we don't - * bother createing new - */ - if (!ucred->luc_ginfo) - RETURN(0); +#ifdef CRAY_XT3 + if (ucred->luc_uce) + ucred->luc_fsgid = ucred->luc_uce->ue_primary; +#endif - /* Note: freeing a group_info count on 'nblocks' instead of - * 'ngroups', thus we can safely alloc enough buffer and reduce - * and ngroups number later. - */ - gnew = groups_alloc(rsd->rsd_ngroups); - if (!gnew) { - CERROR("out of memory\n"); - drop_ucred_ginfo(ucred); - mds_put_group_entry(NULL, ucred->luc_ghash); - RETURN(-ENOMEM); - } - - ginfo = ucred->luc_ginfo; - while (cur < rsd->rsd_ngroups) { - if (groups_search(ginfo, rsd->rsd_groups[cur])) { - GROUP_AT(gnew, set) = rsd->rsd_groups[cur]; - set++; - } - cur++; - } - gnew->ngroups = set; - - put_group_info(ucred->luc_ginfo); - ucred->luc_ginfo = gnew; - } - RETURN(0); + return 0; } -void mds_exit_ucred(struct lvfs_ucred *ucred) +void mds_exit_ucred(struct lvfs_ucred *ucred, struct mds_obd *mds) { - ENTRY; - - if (ucred->luc_ginfo) - put_group_info(ucred->luc_ginfo); - if (ucred->luc_ghash) - mds_put_group_entry(NULL, ucred->luc_ghash); - - EXIT; + upcall_cache_put_entry(mds->mds_group_hash, ucred->luc_uce); }