From: "edecosta via GitGitGadget" <gitgitgadget@gmail.com>
To: git@vger.kernel.org
Cc: Eric DeCosta <edecosta@mathworks.com>, edecosta <edecosta@mathworks.com>
Subject: [PATCH v2 3/4] Check working directory and Unix domain socket file for compatability
Date: Tue, 23 Aug 2022 13:03:39 +0000 [thread overview]
Message-ID: <9b128a981494f5aa7f60062caecc24ee6ea802ec.1661259820.git.gitgitgadget@gmail.com> (raw)
In-Reply-To: <pull.1326.v2.git.1661259820.gitgitgadget@gmail.com>
From: edecosta <edecosta@mathworks.com>
Perform separate checks for the working directory and Unix domain socket
(UDS) file location. The working directory may be located on a
network-mounted file system if 'fsmonitor.allowRemote' is true. The UDS
file may never be located on a network-mounted file system; additionally
it may not be located on FAT32 or NTFS file systems.
Signed-off-by: edecosta <edecosta@mathworks.com>
---
compat/fsmonitor/fsm-settings-darwin.c | 72 +++++++++++++++++++-------
1 file changed, 52 insertions(+), 20 deletions(-)
diff --git a/compat/fsmonitor/fsm-settings-darwin.c b/compat/fsmonitor/fsm-settings-darwin.c
index efc732c0f31..dc79538607f 100644
--- a/compat/fsmonitor/fsm-settings-darwin.c
+++ b/compat/fsmonitor/fsm-settings-darwin.c
@@ -3,11 +3,12 @@
#include "repository.h"
#include "fsmonitor-settings.h"
#include "fsmonitor.h"
+#include "fsmonitor-ipc.h"
#include <sys/param.h>
#include <sys/mount.h>
/*
- * [1] Remote working directories are problematic for FSMonitor.
+ * Remote working directories are problematic for FSMonitor.
*
* The underlying file system on the server machine and/or the remote
* mount type (NFS, SAMBA, etc.) dictates whether notification events
@@ -27,26 +28,8 @@
* In theory, the above issues need to be addressed whether we are
* using the Hook or IPC API.
*
- * For the builtin FSMonitor, we create the Unix domain socket for the
- * IPC in the .git directory. If the working directory is remote,
- * then the socket will be created on the remote file system. This
- * can fail if the remote file system does not support UDS file types
- * (e.g. smbfs to a Windows server) or if the remote kernel does not
- * allow a non-local process to bind() the socket. (These problems
- * could be fixed by moving the UDS out of the .git directory and to a
- * well-known local directory on the client machine, but care should
- * be taken to ensure that $HOME is actually local and not a managed
- * file share.)
- *
* So (for now at least), mark remote working directories as
- * incompatible.
- *
- *
- * [2] FAT32 and NTFS working directories are problematic too.
- *
- * The builtin FSMonitor uses a Unix domain socket in the .git
- * directory for IPC. These Windows drive formats do not support
- * Unix domain sockets, so mark them as incompatible for the daemon.
+ * incompatible unless fsmonitor.allowRemote is true.
*
*/
static enum fsmonitor_reason check_volume(struct repository *r)
@@ -65,6 +48,51 @@ static enum fsmonitor_reason check_volume(struct repository *r)
"statfs('%s') [type 0x%08x][flags 0x%08x] '%s'",
r->worktree, fs.f_type, fs.f_flags, fs.f_fstypename);
+ if (!(fs.f_flags & MNT_LOCAL)
+ && (fsm_settings__get_allow_remote(r) < 1))
+ return FSMONITOR_REASON_REMOTE;
+
+ return FSMONITOR_REASON_OK;
+}
+
+/*
+ * For the builtin FSMonitor, we create the Unix domain socket (UDS)
+ * for the IPC in the .git directory by default or $HOME if
+ * fsmonitor.allowRemote is true. If the directory is remote,
+ * then the socket will be created on the remote file system. This
+ * can fail if the remote file system does not support UDS file types
+ * (e.g. smbfs to a Windows server) or if the remote kernel does not
+ * allow a non-local process to bind() the socket.
+ *
+ * Therefore remote UDS locations are marked as incompatible.
+ *
+ * FAT32 and NTFS working directories are problematic too.
+ *
+ * These Windows drive formats do not support Unix domain sockets, so
+ * mark them as incompatible for the location of the UDS file.
+ *
+ */
+static enum fsmonitor_reason check_uds_volume(void)
+{
+ struct statfs fs;
+ struct strbuf path = STRBUF_INIT;
+ const char *ipc_path = fsmonitor_ipc__get_path();
+ strbuf_add(&path, ipc_path, strlen(ipc_path));
+
+ if (statfs(dirname(path.buf), &fs) == -1) {
+ int saved_errno = errno;
+ trace_printf_key(&trace_fsmonitor, "statfs('%s') failed: %s",
+ path.buf, strerror(saved_errno));
+ errno = saved_errno;
+ strbuf_release(&path);
+ return FSMONITOR_REASON_ERROR;
+ }
+
+ trace_printf_key(&trace_fsmonitor,
+ "statfs('%s') [type 0x%08x][flags 0x%08x] '%s'",
+ path.buf, fs.f_type, fs.f_flags, fs.f_fstypename);
+ strbuf_release(&path);
+
if (!(fs.f_flags & MNT_LOCAL))
return FSMONITOR_REASON_REMOTE;
@@ -85,5 +113,9 @@ enum fsmonitor_reason fsm_os__incompatible(struct repository *r)
if (reason != FSMONITOR_REASON_OK)
return reason;
+ reason = check_uds_volume();
+ if (reason != FSMONITOR_REASON_OK)
+ return reason;
+
return FSMONITOR_REASON_OK;
}
--
gitgitgadget
next prev parent reply other threads:[~2022-08-23 16:32 UTC|newest]
Thread overview: 170+ messages / expand[flat|nested] mbox.gz Atom feed top
2022-08-18 20:48 [PATCH] fsmonitor: option to allow fsmonitor to run against network-mounted repos Eric DeCosta via GitGitGadget
2022-08-18 21:35 ` Junio C Hamano
2022-08-18 21:38 ` Junio C Hamano
2022-08-19 10:05 ` Johannes Schindelin
2022-08-19 16:50 ` Jeff Hostetler
2022-08-19 18:38 ` Eric DeCosta
2022-08-19 20:15 ` Jeff Hostetler
2022-08-19 17:48 ` Eric Sunshine
2022-08-19 18:58 ` Torsten Bögershausen
2022-08-20 22:24 ` Junio C Hamano
2022-08-22 13:22 ` Johannes Schindelin
2022-08-22 16:07 ` Junio C Hamano
2022-08-23 13:51 ` Jeff Hostetler
2022-08-24 15:45 ` Eric DeCosta
2022-08-23 13:03 ` [PATCH v2 0/4] " Eric DeCosta via GitGitGadget
2022-08-23 13:03 ` [PATCH v2 1/4] " Eric DeCosta via GitGitGadget
2022-08-23 13:03 ` [PATCH v2 2/4] fsmonitor: macOS: " Eric DeCosta via GitGitGadget
2022-08-23 13:03 ` edecosta via GitGitGadget [this message]
2022-08-23 13:03 ` [PATCH v2 4/4] Minor refactoring and simplification of Windows settings checks edecosta via GitGitGadget
2022-08-23 18:55 ` [PATCH v3 0/2] fsmonitor: option to allow fsmonitor to run against network-mounted repos Eric DeCosta via GitGitGadget
2022-08-23 18:55 ` [PATCH v3 1/2] fsmonitor: macOS: " Eric DeCosta via GitGitGadget
2022-08-23 18:55 ` [PATCH v3 2/2] Check working directory and Unix domain socket file for compatability edecosta via GitGitGadget
2022-08-24 20:31 ` Junio C Hamano
2022-08-24 16:46 ` [PATCH v3 0/2] fsmonitor: option to allow fsmonitor to run against network-mounted repos Junio C Hamano
2022-08-31 16:09 ` [PATCH v4 0/4] " Eric DeCosta via GitGitGadget
2022-08-31 16:09 ` [PATCH v4 1/4] fsmonitor: add two new config options, allowRemote and socketDir Eric DeCosta via GitGitGadget
2022-08-31 19:41 ` Ævar Arnfjörð Bjarmason
2022-08-31 20:04 ` Junio C Hamano
2022-09-01 2:25 ` Ramsay Jones
2022-09-01 17:53 ` Jeff Hostetler
2022-09-01 18:04 ` Jeff Hostetler
2022-09-01 21:21 ` Jeff Hostetler
2022-09-02 16:54 ` Eric DeCosta
2022-09-06 14:27 ` Jeff Hostetler
2022-08-31 16:09 ` [PATCH v4 2/4] fsmonitor: generate unique Unix socket file name in the desired location Eric DeCosta via GitGitGadget
2022-08-31 19:49 ` Ævar Arnfjörð Bjarmason
2022-08-31 20:11 ` Junio C Hamano
2022-08-31 16:09 ` [PATCH v4 3/4] fsmonitor: ensure filesystem and unix socket filesystem are compatible Eric DeCosta via GitGitGadget
2022-08-31 16:09 ` [PATCH v4 4/4] fsmonitor: normalize FSEvents event paths to the real path Eric DeCosta via GitGitGadget
2022-08-31 19:37 ` Ævar Arnfjörð Bjarmason
2022-09-01 20:05 ` Jeff Hostetler
2022-09-02 16:35 ` Eric DeCosta
2022-09-06 17:13 ` Jeff Hostetler
2022-09-06 19:02 ` Eric DeCosta
2022-09-06 19:33 ` Eric DeCosta
2022-09-06 22:11 ` Eric DeCosta
2022-09-07 19:14 ` Jeff Hostetler
2022-09-07 23:04 ` Eric DeCosta
2022-09-10 20:00 ` [PATCH v5 0/4] fsmonitor: option to allow fsmonitor to run against network-mounted repos Eric DeCosta via GitGitGadget
2022-09-10 20:00 ` [PATCH v5 1/4] fsmonitor: refactor filesystem checks to common interface Eric DeCosta via GitGitGadget
2022-09-10 20:00 ` [PATCH v5 2/4] fsmonitor: relocate socket file if .git directory is remote Eric DeCosta via GitGitGadget
2022-09-10 20:00 ` [PATCH v5 3/4] fsmonitor: avoid socket location check if using hook Eric DeCosta via GitGitGadget
2022-09-10 20:00 ` [PATCH v5 4/4] fsmonitor: deal with synthetic firmlinks on macOS Eric DeCosta via GitGitGadget
2022-09-11 1:01 ` Eric Sunshine
2022-09-12 15:27 ` [PATCH v5 0/4] fsmonitor: option to allow fsmonitor to run against network-mounted repos Junio C Hamano
2022-09-12 19:37 ` Junio C Hamano
2022-09-12 19:39 ` Eric DeCosta
2022-09-12 15:35 ` Junio C Hamano
2022-09-12 19:35 ` Eric DeCosta
2022-09-13 20:27 ` [PATCH v6 0/6] " Eric DeCosta via GitGitGadget
2022-09-13 20:27 ` [PATCH v6 1/6] " Eric DeCosta via GitGitGadget
2022-09-13 20:27 ` [PATCH v6 2/6] fsmonitor: refactor filesystem checks to common interface Eric DeCosta via GitGitGadget
2022-09-13 20:27 ` [PATCH v6 3/6] fsmonitor: relocate socket file if .git directory is remote Eric DeCosta via GitGitGadget
2022-09-14 0:48 ` Junio C Hamano
2022-09-14 15:47 ` Eric DeCosta
2022-09-13 20:27 ` [PATCH v6 4/6] fsmonitor: avoid socket location check if using hook Eric DeCosta via GitGitGadget
2022-09-14 1:48 ` Junio C Hamano
2022-09-13 20:27 ` [PATCH v6 5/6] fsmonitor: deal with synthetic firmlinks on macOS Eric DeCosta via GitGitGadget
2022-09-13 20:27 ` [PATCH v6 6/6] fsmonitor: add documentation for allowRemote and socketDir options Eric DeCosta via GitGitGadget
2022-09-16 17:58 ` [PATCH v6 0/6] fsmonitor: option to allow fsmonitor to run against network-mounted repos Jeff Hostetler
2022-09-16 20:02 ` Eric DeCosta
2022-09-16 19:53 ` [PATCH v7 " Eric DeCosta via GitGitGadget
2022-09-16 19:53 ` [PATCH v7 1/6] fsmonitor: refactor filesystem checks to common interface Eric DeCosta via GitGitGadget
2022-09-16 19:53 ` [PATCH v7 2/6] fsmonitor: relocate socket file if .git directory is remote Eric DeCosta via GitGitGadget
2022-09-16 20:11 ` Junio C Hamano
2022-09-19 12:31 ` Jeff Hostetler
2022-09-19 16:42 ` Junio C Hamano
2022-09-19 17:08 ` Jeff Hostetler
2022-09-19 17:49 ` Junio C Hamano
2022-09-19 23:51 ` Eric DeCosta
2022-09-20 14:35 ` Jeff Hostetler
2022-09-20 15:49 ` Eric DeCosta
2022-09-16 19:53 ` [PATCH v7 3/6] fsmonitor: avoid socket location check if using hook Eric DeCosta via GitGitGadget
2022-09-16 19:53 ` [PATCH v7 4/6] fsmonitor: deal with synthetic firmlinks on macOS Eric DeCosta via GitGitGadget
2022-09-16 19:53 ` [PATCH v7 5/6] " Eric DeCosta via GitGitGadget
2022-09-16 20:15 ` Junio C Hamano
2022-09-16 19:53 ` [PATCH v7 6/6] fsmonitor: add documentation for allowRemote and socketDir options Eric DeCosta via GitGitGadget
2022-09-16 20:09 ` [PATCH v7 0/6] fsmonitor: option to allow fsmonitor to run against network-mounted repos Junio C Hamano
2022-09-17 1:12 ` [PATCH v8 0/5] " Eric DeCosta via GitGitGadget
2022-09-17 1:12 ` [PATCH v8 1/5] fsmonitor: refactor filesystem checks to common interface Eric DeCosta via GitGitGadget
2022-09-17 1:12 ` [PATCH v8 2/5] fsmonitor: relocate socket file if .git directory is remote Eric DeCosta via GitGitGadget
2022-09-17 4:13 ` Eric Sunshine
2022-09-19 16:50 ` Junio C Hamano
2022-09-17 6:29 ` Eric Sunshine
2022-09-17 16:29 ` Eric DeCosta
2022-09-19 16:58 ` Junio C Hamano
2022-09-17 1:12 ` [PATCH v8 3/5] fsmonitor: avoid socket location check if using hook Eric DeCosta via GitGitGadget
2022-09-17 1:12 ` [PATCH v8 4/5] fsmonitor: deal with synthetic firmlinks on macOS Eric DeCosta via GitGitGadget
2022-09-17 1:12 ` [PATCH v8 5/5] fsmonitor: add documentation for allowRemote and socketDir options Eric DeCosta via GitGitGadget
2022-09-17 6:08 ` Eric Sunshine
2022-09-19 23:55 ` Eric DeCosta
2022-09-19 19:37 ` [PATCH v9 0/6] fsmonitor: option to allow fsmonitor to run against network-mounted repos Eric DeCosta via GitGitGadget
2022-09-19 19:37 ` [PATCH v9 1/6] fsmonitor: refactor filesystem checks to common interface Eric DeCosta via GitGitGadget
2022-09-19 19:37 ` [PATCH v9 2/6] fsmonitor: relocate socket file if .git directory is remote Eric DeCosta via GitGitGadget
2022-09-19 19:57 ` Eric Sunshine
2022-09-19 19:37 ` [PATCH v9 3/6] fsmonitor: avoid socket location check if using hook Eric DeCosta via GitGitGadget
2022-09-19 19:37 ` [PATCH v9 4/6] fsmonitor: deal with synthetic firmlinks on macOS Eric DeCosta via GitGitGadget
2022-09-19 19:37 ` [PATCH v9 5/6] fsmonitor: check for compatability before communicating with fsmonitor Eric DeCosta via GitGitGadget
2022-09-19 19:37 ` [PATCH v9 6/6] fsmonitor: add documentation for allowRemote and socketDir options Eric DeCosta via GitGitGadget
2022-09-20 20:33 ` [PATCH v10 0/6] fsmonitor: option to allow fsmonitor to run against network-mounted repos Eric DeCosta via GitGitGadget
2022-09-20 20:33 ` [PATCH v10 1/6] fsmonitor: refactor filesystem checks to common interface Eric DeCosta via GitGitGadget
2022-09-20 20:33 ` [PATCH v10 2/6] fsmonitor: relocate socket file if .git directory is remote Eric DeCosta via GitGitGadget
2022-09-20 20:33 ` [PATCH v10 3/6] fsmonitor: avoid socket location check if using hook Eric DeCosta via GitGitGadget
2022-09-20 20:33 ` [PATCH v10 4/6] fsmonitor: deal with synthetic firmlinks on macOS Eric DeCosta via GitGitGadget
2022-09-20 20:33 ` [PATCH v10 5/6] fsmonitor: check for compatability before communicating with fsmonitor Eric DeCosta via GitGitGadget
2022-09-21 11:22 ` Jeff Hostetler
2022-09-21 13:03 ` Eric DeCosta
2022-09-20 20:33 ` [PATCH v10 6/6] fsmonitor: add documentation for allowRemote and socketDir options Eric DeCosta via GitGitGadget
2022-09-21 22:18 ` [PATCH v11 0/6] fsmonitor: option to allow fsmonitor to run against network-mounted repos Eric DeCosta via GitGitGadget
2022-09-21 22:18 ` [PATCH v11 1/6] fsmonitor: refactor filesystem checks to common interface Eric DeCosta via GitGitGadget
2022-09-21 22:18 ` [PATCH v11 2/6] fsmonitor: relocate socket file if .git directory is remote Eric DeCosta via GitGitGadget
2022-09-21 22:18 ` [PATCH v11 3/6] fsmonitor: avoid socket location check if using hook Eric DeCosta via GitGitGadget
2022-09-21 22:18 ` [PATCH v11 4/6] fsmonitor: deal with synthetic firmlinks on macOS Eric DeCosta via GitGitGadget
2022-09-21 22:18 ` [PATCH v11 5/6] fsmonitor: check for compatability before communicating with fsmonitor Eric DeCosta via GitGitGadget
2022-09-21 22:18 ` [PATCH v11 6/6] fsmonitor: add documentation for allowRemote and socketDir options Eric DeCosta via GitGitGadget
2022-09-24 19:46 ` [PATCH v12 0/6] fsmonitor: option to allow fsmonitor to run against network-mounted repos Eric DeCosta via GitGitGadget
2022-09-24 19:46 ` [PATCH v12 1/6] fsmonitor: refactor filesystem checks to common interface Eric DeCosta via GitGitGadget
2022-09-24 19:46 ` [PATCH v12 2/6] fsmonitor: relocate socket file if .git directory is remote Eric DeCosta via GitGitGadget
2022-09-24 19:46 ` [PATCH v12 3/6] fsmonitor: avoid socket location check if using hook Eric DeCosta via GitGitGadget
2022-09-24 19:46 ` [PATCH v12 4/6] fsmonitor: deal with synthetic firmlinks on macOS Eric DeCosta via GitGitGadget
2022-09-26 15:16 ` Ævar Arnfjörð Bjarmason
2022-09-27 1:53 ` Eric DeCosta
2022-09-26 15:27 ` Ævar Arnfjörð Bjarmason
2022-09-24 19:46 ` [PATCH v12 5/6] fsmonitor: check for compatability before communicating with fsmonitor Eric DeCosta via GitGitGadget
2022-09-25 14:00 ` Eric DeCosta
2022-09-26 15:23 ` Ævar Arnfjörð Bjarmason
2022-09-27 1:25 ` Eric DeCosta
2022-09-24 19:46 ` [PATCH v12 6/6] fsmonitor: add documentation for allowRemote and socketDir options Eric DeCosta via GitGitGadget
2022-09-26 15:11 ` Ævar Arnfjörð Bjarmason
2022-09-27 2:16 ` Eric Sunshine
2022-09-27 4:03 ` Eric DeCosta
2022-09-25 14:18 ` [PATCH v12 0/6] fsmonitor: option to allow fsmonitor to run against network-mounted repos Eric DeCosta
2022-09-27 20:57 ` [PATCH v13 " Eric DeCosta via GitGitGadget
2022-09-27 20:57 ` [PATCH v13 1/6] fsmonitor: refactor filesystem checks to common interface Eric DeCosta via GitGitGadget
2022-09-27 20:57 ` [PATCH v13 2/6] fsmonitor: relocate socket file if .git directory is remote Eric DeCosta via GitGitGadget
2022-09-27 20:57 ` [PATCH v13 3/6] fsmonitor: avoid socket location check if using hook Eric DeCosta via GitGitGadget
2022-09-27 20:57 ` [PATCH v13 4/6] fsmonitor: deal with synthetic firmlinks on macOS Eric DeCosta via GitGitGadget
2022-09-28 5:55 ` Ævar Arnfjörð Bjarmason
2022-09-27 20:57 ` [PATCH v13 5/6] fsmonitor: check for compatability before communicating with fsmonitor Eric DeCosta via GitGitGadget
2022-09-27 20:57 ` [PATCH v13 6/6] fsmonitor: add documentation for allowRemote and socketDir options Eric DeCosta via GitGitGadget
2022-09-28 20:12 ` [PATCH v14 0/6] fsmonitor: option to allow fsmonitor to run against network-mounted repos Eric DeCosta via GitGitGadget
2022-09-28 20:12 ` [PATCH v14 1/6] fsmonitor: refactor filesystem checks to common interface Eric DeCosta via GitGitGadget
2022-09-28 20:12 ` [PATCH v14 2/6] fsmonitor: relocate socket file if .git directory is remote Eric DeCosta via GitGitGadget
2022-09-28 20:12 ` [PATCH v14 3/6] fsmonitor: avoid socket location check if using hook Eric DeCosta via GitGitGadget
2022-09-28 20:12 ` [PATCH v14 4/6] fsmonitor: deal with synthetic firmlinks on macOS Eric DeCosta via GitGitGadget
2022-09-28 20:12 ` [PATCH v14 5/6] fsmonitor: check for compatability before communicating with fsmonitor Eric DeCosta via GitGitGadget
2022-09-28 20:12 ` [PATCH v14 6/6] fsmonitor: add documentation for allowRemote and socketDir options Eric DeCosta via GitGitGadget
2022-10-04 17:32 ` [PATCH v15 0/6] fsmonitor: option to allow fsmonitor to run against network-mounted repos Eric DeCosta via GitGitGadget
2022-10-04 17:32 ` [PATCH v15 1/6] fsmonitor: refactor filesystem checks to common interface Eric DeCosta via GitGitGadget
2023-01-30 9:37 ` Ævar Arnfjörð Bjarmason
2022-10-04 17:32 ` [PATCH v15 2/6] fsmonitor: relocate socket file if .git directory is remote Eric DeCosta via GitGitGadget
2023-01-30 9:58 ` Ævar Arnfjörð Bjarmason
2022-10-04 17:32 ` [PATCH v15 3/6] fsmonitor: avoid socket location check if using hook Eric DeCosta via GitGitGadget
2022-10-04 17:32 ` [PATCH v15 4/6] fsmonitor: deal with synthetic firmlinks on macOS Eric DeCosta via GitGitGadget
2023-01-30 10:08 ` Ævar Arnfjörð Bjarmason
2022-10-04 17:32 ` [PATCH v15 5/6] fsmonitor: check for compatability before communicating with fsmonitor Eric DeCosta via GitGitGadget
2022-10-04 17:32 ` [PATCH v15 6/6] fsmonitor: add documentation for allowRemote and socketDir options Eric DeCosta via GitGitGadget
2023-01-30 10:04 ` Ævar Arnfjörð Bjarmason
2022-10-05 18:05 ` [PATCH v15 0/6] fsmonitor: option to allow fsmonitor to run against network-mounted repos Junio C Hamano
2022-10-05 21:14 ` Eric DeCosta
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