From 4f5791ebd03eaec1c7da0865a383175b05102712 Mon Sep 17 00:00:00 2001 From: Daniel Baumann Date: Sun, 5 May 2024 19:47:29 +0200 Subject: Adding upstream version 2:4.17.12+dfsg. Signed-off-by: Daniel Baumann --- source3/lib/sysquotas_jfs2.c | 150 +++++++++++++++++++++++++++++++++++++++++++ 1 file changed, 150 insertions(+) create mode 100644 source3/lib/sysquotas_jfs2.c (limited to 'source3/lib/sysquotas_jfs2.c') diff --git a/source3/lib/sysquotas_jfs2.c b/source3/lib/sysquotas_jfs2.c new file mode 100644 index 0000000..999b7e0 --- /dev/null +++ b/source3/lib/sysquotas_jfs2.c @@ -0,0 +1,150 @@ +/* + * Unix SMB/CIFS implementation. + * System QUOTA function wrappers for JFS2 on AIX + + * Copyright (C) 2019 Bjoern Jacke + * + * This program is free software; you can redistribute it and/or modify + * it under the terms of the GNU General Public License as published by + * the Free Software Foundation; either version 2 of the License, or + * (at your option) any later version. + * + * This program 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. + * + * You should have received a copy of the GNU General Public License + * along with this program; if not, write to the Free Software + * Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA. + */ + + +#include "includes.h" + +#undef DBGC_CLASS +#define DBGC_CLASS DBGC_QUOTA + +#if defined(HAVE_JFS_QUOTA_H) +#include + +#if defined(Q_J2GETQUOTA) /* when have JFS2 */ + +/* int quotactl(const char *path, int cmd, int id, char *addr) + * + * This is very similar to sysquotas_4B but JFS2 has different quota cmds + * (why?) and for some reason wants root even for querying your own quota, + * which seems to be an AIX bug because the docs say root is only + * required for querying other users' quota + */ + + +#ifdef HAVE_SYS_TYPES_H +#include +#endif + +#ifdef HAVE_JFS_QUOTA_H +#include +#endif + + +static int sys_quotactl_JFS2(const char * path, int cmd, + int id, quota64_t *quota) +{ + int ret; + + /* NB: We must test GRPQUOTA here, because USRQUOTA is 0. */ + DEBUG(10, ("%s quota for %s ID %u on %s\n", + (cmd & QCMD(Q_J2GETQUOTA, 0)) ? "getting" : "setting", + (cmd & QCMD(0, GRPQUOTA)) ? "group" : "user", + (unsigned)id, path)); + + become_root(); + + ret = quotactl((char *) path, cmd, id, (char *) quota); + if (ret == -1) { + /* ENOTSUP means quota support is not compiled in. EINVAL + * means that quotas are not configured (commonly). + */ + if (errno != ENOTSUP && errno != EINVAL) { + DEBUG(0, ("failed to %s quota for %s ID %u on %s: %s\n", + (cmd & QCMD(Q_J2GETQUOTA, 0)) ? "get" : "set", + (cmd & QCMD(0, GRPQUOTA)) ? "group" : "user", + (unsigned)id, path, strerror(errno))); + } + } + + unbecome_root(); + + return ret; +} + + +int sys_get_jfs2_quota(const char *path, const char *bdev, + enum SMB_QUOTA_TYPE qtype, unid_t id, SMB_DISK_QUOTA *dp) +{ + int ret; + quota64_t quota; + + ZERO_STRUCT(quota); + + switch (qtype) { + case SMB_USER_QUOTA_TYPE: + /* Get quota for provided UID. */ + ret = sys_quotactl_JFS2(path, QCMD(Q_J2GETQUOTA, USRQUOTA), + id.uid, "a); + break; + case SMB_USER_FS_QUOTA_TYPE: + /* Get quota for current UID. */ + ret = sys_quotactl_JFS2(path, QCMD(Q_J2GETQUOTA, USRQUOTA), + geteuid(), "a); + break; + case SMB_GROUP_QUOTA_TYPE: + /* Get quota for provided GID. */ + ret = sys_quotactl_JFS2(path, QCMD(Q_J2GETQUOTA, GRPQUOTA), + id.gid, "a); + break; + case SMB_GROUP_FS_QUOTA_TYPE: + /* Get quota for current GID. */ + ret = sys_quotactl_JFS2(path, QCMD(Q_J2GETQUOTA, GRPQUOTA), + getegid(), "a); + break; + default: + DEBUG(0, ("cannot get unsupported quota type: %u\n", + (unsigned)qtype)); + errno = ENOSYS; + return -1; + } + + if (ret == -1) { + return -1; + } + + dp->softlimit = quota.bsoft; + dp->hardlimit = quota.bhard; + dp->ihardlimit = quota.ihard; + dp->isoftlimit = quota.isoft; + dp->curinodes = quota.iused; + dp->curblocks = quota.bused; + + dp->qflags = QUOTAS_ENABLED | QUOTAS_DENY_DISK; + dp->qtype = qtype; + dp->bsize = QUOTABLOCK_SIZE; + + return ret; +} + +int sys_set_jfs2_quota(const char *path, const char *bdev, + enum SMB_QUOTA_TYPE qtype, unid_t id, SMB_DISK_QUOTA *dp) +{ + /* JFS2 supports fancy quota limit classes for setting user quota. + * Unfortunately, this makes them quite unmanagable for Samba. + */ + DEBUG(1, ("cannot set quota on JFS2!\n")); + errno = ENOSYS; + return -1; +} + + +#endif /* JFS2 */ +#endif /* AIX quotas */ -- cgit v1.2.3