author | Mike Sullivan <Mike.Sullivan@Oracle.COM> |
Fri, 29 May 2015 15:30:36 -0700 | |
changeset 4377 | b861470645e4 |
permissions | -rw-r--r-- |
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Source: Oracle Solaris (based on VFS module written by [email protected]) |
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Shared with community as Samba.org bug #5780 : |
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https://bugzilla.samba.org/show_bug.cgi?id=5780 |
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diff --git a/source3/Makefile.in b/source3/Makefile.in |
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index 425aa2b..db1d809 100644 |
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--- a/source3/Makefile.in |
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+++ b/source3/Makefile.in |
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@@ -715,6 +715,7 @@ VFS_AIXACL_OBJ = modules/vfs_aixacl.o modules/vfs_aixacl_util.o |
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VFS_AIXACL2_OBJ = modules/vfs_aixacl2.o modules/vfs_aixacl_util.o modules/nfs4_acls.o |
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VFS_SOLARISACL_OBJ = modules/vfs_solarisacl.o |
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VFS_ZFSACL_OBJ = modules/vfs_zfsacl.o modules/nfs4_acls.o |
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+VFS_SAMFS_OBJ = modules/vfs_samfs.o |
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VFS_HPUXACL_OBJ = modules/vfs_hpuxacl.o |
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VFS_IRIXACL_OBJ = modules/vfs_irixacl.o |
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VFS_TRU64ACL_OBJ = modules/vfs_tru64acl.o |
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@@ -2741,6 +2742,10 @@ bin/zfsacl.@SHLIBEXT@: $(BINARY_PREREQS) $(VFS_ZFSACL_OBJ) |
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@echo "Building plugin $@" |
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@$(SHLD_MODULE) $(VFS_ZFSACL_OBJ) |
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|
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+bin/samfs.@SHLIBEXT@: $(BINARY_PREREQS) $(VFS_SAMFS_OBJ) |
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+ @echo "Building plugin $@" |
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+ @$(SHLD_MODULE) $(VFS_SAMFS_OBJ) @SAMFS_LIBS@ |
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+ |
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bin/irixacl.@SHLIBEXT@: $(BINARY_PREREQS) $(VFS_IRIXACL_OBJ) |
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@echo "Building plugin $@" |
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@$(SHLD_MODULE) $(VFS_IRIXACL_OBJ) |
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diff --git a/source3/configure.in b/source3/configure.in |
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index 2494593..8daa53f 100644 |
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--- a/source3/configure.in |
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+++ b/source3/configure.in |
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@@ -6653,6 +6653,8 @@ SMB_MODULE(vfs_aio_fork, \$(VFS_AIO_FORK_OBJ), "bin/aio_fork.$SHLIBEXT", VFS) |
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SMB_MODULE(vfs_preopen, \$(VFS_PREOPEN_OBJ), "bin/preopen.$SHLIBEXT", VFS) |
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SMB_MODULE(vfs_syncops, \$(VFS_SYNCOPS_OBJ), "bin/syncops.$SHLIBEXT", VFS) |
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SMB_MODULE(vfs_zfsacl, \$(VFS_ZFSACL_OBJ), "bin/zfsacl.$SHLIBEXT", VFS) |
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+AC_SUBST(SAMFS_LIBS) |
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+SMB_MODULE(vfs_samfs, \$(VFS_SAMFS_OBJ), "bin/samfs.$SHLIBEXT", VFS) |
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SMB_MODULE(vfs_notify_fam, \$(VFS_NOTIFY_FAM_OBJ), "bin/notify_fam.$SHLIBEXT", VFS) |
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SMB_MODULE(vfs_acl_xattr, \$(VFS_ACL_XATTR_OBJ), "bin/acl_xattr.$SHLIBEXT", VFS) |
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SMB_MODULE(vfs_acl_tdb, \$(VFS_ACL_TDB_OBJ), "bin/acl_tdb.$SHLIBEXT", VFS) |
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diff --git a/source3/modules/vfs_samfs.c b/source3/modules/vfs_samfs.c |
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new file mode 100644 |
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index 0000000..9370768 |
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--- /dev/null 2012-07-16 09:13:54.000000000 -0700 |
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+++ b/source3/modules/vfs_samfs.c 2012-07-16 09:21:00.168046000 -0700 |
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@@ -0,0 +1,179 @@ |
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+/* |
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+ * Support for offline files with Sun SAM-QFS |
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+ * |
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+ * Copyright (C) Dirk Nitschke, 2009 |
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+ * |
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+ * Modified by Jiri Sasek, 2010 |
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+ * To conform the samba-vfs api |
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+ * |
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+ * This program is free software; you can redistribute it and/or modify |
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+ * it under the terms of the GNU General Public License as published by |
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+ * the Free Software Foundation; either version 3 of the License, or |
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+ * (at your option) any later version. |
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+ * |
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+ * This program is distributed in the hope that it will be useful, |
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+ * but WITHOUT ANY WARRANTY; without even the implied warranty of |
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+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the |
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+ * GNU General Public License for more details. |
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+ * |
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+ * You should have received a copy of the GNU General Public License |
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+ * along with this program; if not, see <http://www.gnu.org/licenses/>. |
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+ * |
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+ */ |
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+ |
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+#include "includes.h" |
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+#include "smbd/smbd.h" |
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+/* |
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+ * Include files for Sun SAM-QFS |
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+ * |
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+ */ |
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+#include <samfs/stat.h> |
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+#include <samfs/lib.h> |
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+ |
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+#undef DBGC_CLASS |
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+#define DBGC_CLASS DBGC_VFS |
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+ |
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+#define SAMFS_MODULE_NAME "samfs" |
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+ |
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+NTSTATUS vfs_samfs_init(void); |
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+ |
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+/* |
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+ * samfs_is_offline() |
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+ * check if the local file is offline in the sense of SAM-QFS |
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+ * |
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+ * A segmented file is offline if the file's index inode is |
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+ * offline or at least one of it's segments is offline. |
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+ * |
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+ * See sam_stat(3) and sam_segment_stat(3) for details. |
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+ * |
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+ * If something goes wrong we assume that the file is offline. |
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+ */ |
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+static bool samfs_is_offline(struct vfs_handle_struct *handle, const struct smb_filename *fname, SMB_STRUCT_STAT *sbuf) |
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+{ |
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+ struct sam_stat file_info; |
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+ struct sam_stat *seg_info_ptr; |
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+ int number_of_segments, number_of_segments_offline = 0; |
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+ int result; |
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+ int i; |
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+ NTSTATUS status; |
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+ char *path; |
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+ |
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+ status = get_full_smb_filename(talloc_tos(), fname, &path); |
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+ if (!NT_STATUS_IS_OK(status)) { |
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+ errno = map_errno_from_nt_status(status); |
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+ return false; |
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+ } |
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+ |
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+ if (ISDOT(path) || ISDOTDOT(path)) { |
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+ return false; |
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115 |
+ } |
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116 |
+ |
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117 |
+ /* |
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118 |
+ * Initialize file_info to be all zero bits |
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119 |
+ */ |
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120 |
+ memset((void *)&file_info, 0, sizeof(struct sam_stat)); |
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121 |
+ |
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122 |
+ /* |
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123 |
+ * Stat the file using the regular sam_stat function |
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124 |
+ */ |
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125 |
+ result = sam_stat(path, &file_info, sizeof(struct sam_stat)); |
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126 |
+ |
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127 |
+ if (result != 0) { |
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128 |
+ DEBUG(10,("samfs_is_offline: cannot sam_stat %s, %s\nAssuming file is offline.\n", \ |
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129 |
+ path, strerror(errno))); |
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130 |
+ return true; |
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131 |
+ } |
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132 |
+ |
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133 |
+ /* |
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134 |
+ * Check if file is offline |
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135 |
+ */ |
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136 |
+ if (SS_ISOFFLINE(file_info.attr)) { |
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137 |
+ DEBUG(10,("samfs_is_offline: file %s is offline.\n", path)); |
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138 |
+ return true; |
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139 |
+ } |
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140 |
+ |
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|
141 |
+ /* |
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142 |
+ * Check for segmented file |
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143 |
+ */ |
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144 |
+ if (SS_ISSEGMENT_F(file_info.attr)) { |
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145 |
+ number_of_segments = NUM_SEGS(&file_info); |
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146 |
+ seg_info_ptr = (struct sam_stat *)TALLOC_ZERO_ARRAY(talloc_tos(), |
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147 |
+ struct sam_stat, number_of_segments); |
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148 |
+ if (seg_info_ptr == NULL) { |
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149 |
+ DEBUG(10,("samfs_is_offline: cannot talloc for " |
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150 |
+ "segment stat info %s\nAssuming file is offline.\n", |
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|
151 |
+ path)); |
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152 |
+ return true; |
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153 |
+ } |
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154 |
+ |
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155 |
+ /* |
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|
156 |
+ * Stat all segments |
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157 |
+ */ |
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|
158 |
+ result = sam_segment_stat(path, seg_info_ptr, |
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159 |
+ number_of_segments * sizeof(struct sam_stat)); |
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160 |
+ if (result != 0) { |
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161 |
+ DEBUG(10,("samfs_is_offline: cannot sam_segment_stat %s, " |
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162 |
+ "%s\nAssuming file is offline.\n", |
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163 |
+ path, strerror(errno))); |
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|
164 |
+ TALLOC_FREE(seg_info_ptr); |
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|
165 |
+ return true; |
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|
166 |
+ } |
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|
167 |
+ /* |
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|
168 |
+ * Loop over segments until we have checked all segments |
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169 |
+ * or found one which is offline. |
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170 |
+ */ |
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|
171 |
+ for (i = 0; i < number_of_segments; i++) { |
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172 |
+ if (SS_ISOFFLINE(seg_info_ptr[i].attr)) { |
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173 |
+ number_of_segments_offline++; |
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|
174 |
+ } |
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|
175 |
+ } |
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|
176 |
+ DEBUG(10,("samfs_is_offline: file %s has %d offline segments\n" |
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177 |
+ , path, number_of_segments_offline)); |
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|
178 |
+ TALLOC_FREE(seg_info_ptr); |
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|
179 |
+ } |
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180 |
+ return (number_of_segments_offline) ? true : false ; |
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|
181 |
+} |
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|
182 |
+ |
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183 |
+/* |
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|
184 |
+ * samfs_set_offline() |
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|
185 |
+ * |
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186 |
+ * Release the local file in the sense of SAM-QFS. |
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187 |
+ * See sam_release(3) for details. |
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|
188 |
+ * |
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|
189 |
+ */ |
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|
190 |
+static int samfs_set_offline(struct vfs_handle_struct *handle, const struct smb_filename *fname) |
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191 |
+{ |
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|
192 |
+ int result; |
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|
193 |
+ NTSTATUS status; |
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|
194 |
+ char *path; |
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|
195 |
+ |
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|
196 |
+ status = get_full_smb_filename(talloc_tos(), fname, &path); |
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|
197 |
+ if (!NT_STATUS_IS_OK(status)) { |
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|
198 |
+ errno = map_errno_from_nt_status(status); |
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|
199 |
+ return false; |
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|
200 |
+ } |
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|
201 |
+ |
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|
202 |
+ /* |
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203 |
+ * release a file-command to SAM-stager |
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|
204 |
+ */ |
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|
205 |
+ result = sam_release(path, "i"); |
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|
206 |
+ if (result != 0) { |
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|
207 |
+ DEBUG(10,("samfs_set_offline: sam_release %s returned %s\n", |
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|
208 |
+ path, strerror(errno))); |
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|
209 |
+ return -1; |
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|
210 |
+ } |
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|
211 |
+ return 0; |
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|
212 |
+} |
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|
213 |
+ |
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|
214 |
+/* VFS operations structure */ |
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|
215 |
+ |
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216 |
+static struct vfs_fn_pointers samfs_fns = { |
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217 |
+ .is_offline = samfs_is_offline, |
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218 |
+ .set_offline = samfs_set_offline |
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|
219 |
+}; |
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220 |
+ |
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221 |
+NTSTATUS vfs_samfs_init(void) |
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222 |
+{ |
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223 |
+ return smb_register_vfs(SMB_VFS_INTERFACE_VERSION, SAMFS_MODULE_NAME, |
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224 |
+ &samfs_fns); |
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225 |
+} |