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Reviewed-by: Andrew Clayton <a.clayton@nginx.com>
Signed-off-by: Alejandro Colomar <alx@kernel.org>
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When editing the configuration in-place, it's easy to make a mistake.
If the configuration is wrong, it will be passed to the control socket,
which will reject it, keeping the old configuration. Those manual edits
would be lost, which can make it very uncomfortable to edit in-place.
By printing the name of the temporary file, we allow the user to recover
the changes.
Cc: Liam Crilly <liam@nginx.com>
Reviewed-by: Andrew Clayton <a.clayton@nginx.com>
Signed-off-by: Alejandro Colomar <alx@kernel.org>
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Suggested-by: Liam Crilly <liam@nginx.com>
Reviewed-by: Andrew Clayton <a.clayton@nginx.com>
Signed-off-by: Alejandro Colomar <alx@kernel.org>
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Centralize handling of the ssh(1) tunnel in the ctl command.
This is possible now that we do the cleanup with trap(1).
Reviewed-by: Andrew Clayton <a.clayton@nginx.com>
Signed-off-by: Alejandro Colomar <alx@kernel.org>
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This allows listening to command exit statuses. Before this change, we
had to ignore the exit status of curl(1) (and a few other commands),
since otherwise the script would go kaboom and not cleanup the ssh(1)
tunnels.
Fixes: 543d478e1236 ("Tools: setup-unit: ctl: added "edit" subcommand.")
Fixes: 3778877eb3be ("Tools: Added subcommands to setup-unit.")
Reviewed-by: Andrew Clayton <a.clayton@nginx.com>
Signed-off-by: Alejandro Colomar <alx@kernel.org>
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- Go: Drop 1.20, Add 1.22
- Node: Drop 18, Add 21
- PHP: Add 8.3
- Ruby: Add 3.3
Perl and Python are still up-to-date with upstream releases
Regenerating the Dockerfiles also picks up the logging change from
183a1e9d634ae2fb129ce98f1ca8a16cbfdeac99
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Add more entries for Andrei and Konstantin and an entry for Dan.
Reviewed-by: Dan Callahan <d.callahan@f5.com>
Signed-off-by: Andrew Clayton <a.clayton@nginx.com>
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Saves on the order of 10 MBs of transfer for each build.
We call `rm -rf /usr/src/unit` later in this step, so the full repo has
never appeared in our published images anyway.
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In that particular issue the compiled nuxt files end up importing the
http module as node:http rather than http only. This bypasses unit's
custom loader implementation which only check for the http or unit-http
modules, and their websocket counterparts.
This changeset adds replace sources for both the node:http and
node:websocket import signatures.
Closes: https://github.com/nginx/unit/issues/1013
Reviewed-by: Andrew Clayton <a.clayton@nginx.com>
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As suggested by @lcrilly
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This allows to use /dev/stdout as application logs if users choose to do
so.
Closes: https://github.com/nginx/unit/issues/982
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This commit introduces the 'vars' JavaScript object to NJS,
enabling direct access to native variables such as $uri and $arg_foo.
The syntax is `${vars.var_name}` or `${'vars[var_name]'}`.
For example:
{
"action": {
"share": "`/www/html${vars.uri}`"
}
}
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This commit is for subsequent commits that will support njs variable
accessing. In this commit, nxt_var_get() is introduced to extend
the variable handling capabilities. Concurrently, nxt_var_ref_get()
has been refactored to use in both configuration and request phases.
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This commit enhances nxt_var_cache_value() to enable variable access
using string names, complementing the existing reference index method.
The modification ensures future compatibility with njs variable access.
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This is a simple temporary fix (doesn't address the underlying problem)
for an issue reported by a user on GitHub whereby downloading of files
from a PHP application would cause the router process to crash.
This is actually a generic problem that will affect anything sending
data via nxt_unit_response_write().
This is just a simple fix for the 1.32 release, after which the full
correct fix will be worked out.
Link: <https://github.com/nginx/unit/issues/1125>
Reported-by: rustedsword <https://github.com/rustedsword>
Co-developed-by: rustedsword <https://github.com/rustedsword>
Tested-by: rustedsword <https://github.com/rustedsword>
Tested-by: Andrew Clayton <a.clayton@nginx.com>
Reviewed-by: Zhidao Hong <z.hong@f5.com>
Signed-off-by: Andrew Clayton <a.clayton@nginx.com>
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A user on GitHub reported an issue when trying to build/install the
nodejs language module.
Doing a
$ ./configure nodejs --node=/usr/bin/node --npm=/usr/bin/npm --node-gyp=/usr/bin/node-gyp
$ make install
was throwing the following error
mv build/src//usr/bin/node/unit-http-g/unit-http-1.31.1.tgz build//usr/bin/node-unit-http-g.tar.gz
mv: cannot move 'build/src//usr/bin/node/unit-http-g/unit-http-1.31.1.tgz' to 'build//usr/bin/node-unit-http-g.tar.gz': No such file or directory
make: *** [build/Makefile:2061: build//usr/bin/node-unit-http-g.tar.gz] Error 1
The fact that we're using the path given by --node= to then use as
directory locations seems erroneous.
But rather than risk breaking existing expectations the simple fix is to
just use build/src in the destination path above to match that of the
source.
These paths were added in some previous commits, and the missing 'src/'
component looks like an oversight.
After this commit both the following work
$ ./configure nodejs --node-gyp=/usr/lib/node_modules/bin/node-gyp-bin/node-gyp --local=/opt/unit/node
$ ./configure nodejs --node=/usr/bin/node --node-gyp=/usr/lib/node_modules/npm/bin/node-gyp-bin/node-gyp --local=/opt/unit/node
Reported-by: ruspaul013 <https://github.com/ruspaul013>
Tested-by: ruspaul013 <https://github.com/ruspaul013>
Fixes: 0ee8de554 ("Fixed Makefile target for NodeJS.")
Fixes: c84948386 ("Node.js: fixing module global installation.")
Reviewed-by: Timo Stark <t.stark@nginx.com>
Signed-off-by: Andrew Clayton <a.clayton@nginx.com>
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Forgotten in
<https://github.com/nginx/unit/commit/c3af21e970ca3c822004cfda7c5b56ec07d99da9>
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Functionally identical, but marginally more idiomatic.
Refines: fbeb2065b180e2376088387ee150d3975dc08cd5
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Now that unitd has multiple --control* startup options, locating the
address of the control socket requires additional precision.
Signed-off-by: Liam Crilly <liam.crilly@nginx.com>
Acked-by: Andrew Clayton <a.clayton@nginx.com>
Signed-off-by: Andrew Clayton <a.clayton@nginx.com>
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Signed-off-by: Andrew Clayton <a.clayton@nginx.com>
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Several users in GitHub have asked for the ability to set the
permissions of the unitd UNIX Domain control socket.
This can of course be done externally, but can be done much cleaner by
Unit itself.
This commit adds three new options
--control-mode Set the mode of the socket, e.g 644
--control-user Set the user/owner of the socket, e.g unit
--control-group Set the group of the socket, e.g unit
Of course these only have an affect when using a UNIX Domain Socket for
the control socket.
Requested-by: michaelkosir <https://github.com/michaelkosir>
Requested-by: chopanovv <https://github.com/chopanovv>
Link: <https://github.com/nginx/unit/issues/254>
Link: <https://github.com/nginx/unit/issues/980>
Closes: https://github.com/nginx/unit/issues/840
Tested-by: Liam Crilly <liam.crilly@nginx.com>
Reviewed-by: Zhidao Hong <z.hong@f5.com>
Signed-off-by: Andrew Clayton <a.clayton@nginx.com>
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This wraps chown(2) but takes the user/owner and group as strings.
It's a little long winded as it uses the thread safe versions of
getpwnam()/getgrname() which require a little more work.
This function will be used by the following commit that allows to set
the permissions of the Unix domain control socket.
We need to cast uid & gid to long in the call to nxt_thread_log_alert()
to appease clang-ast as it's adamant that uid/gid are unsigned ints, but
chown(2) takes -1 for these values to indicate don't change this item,
and it'd be nice to show them in the error message.
Note that getpwnam()/getgrname() don't define "not found" as an error as
per their man page
The formulation given above under "RETURN VALUE" is from POSIX.1-2001.
It does not call "not found" an error, and hence does not specify what
value errno might have in this situation. But that makes it impossible
to recognize errors. One might argue that according to POSIX errno
should be left unchanged if an entry is not found. Experiments on var‐
ious UNIX-like systems show that lots of different values occur in this
situation: 0, ENOENT, EBADF, ESRCH, EWOULDBLOCK, EPERM, and probably
others.
Thus if we log an error from these functions we can end up with the
slightly humorous error message
2024/02/12 15:15:12 [alert] 99404#99404 getpwnam_r("noddy", ...) failed (0: Success) (User not found) while creating listening socket on unix:/opt/unit/control.unit.sock
Reviewed-by: Zhidao Hong <z.hong@f5.com>
Signed-off-by: Andrew Clayton <a.clayton@nginx.com>
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* Take options as well as requestListener
Unit-http have not kept up with the signature of nodejs's http package
development. Nodejs allows an optional `options` object to be passed to
the `createServer` function, we didn't. This resulted in function
signature errors when user code that did make use of the options arg
tried to call unit's replaced function.
This change changes the signature to be more in line with how nodejs
does it discarding it and printing a message to stdout.
* Add test file to start node application with options
* Add changes to docs/changes.xml
Closes: https://github.com/nginx/unit/issues/1043
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It's an integer, not a floating number.
Fixes: 68c6b67ffc84 ("Configuration: support for rational numbers.")
Closes: https://github.com/nginx/unit/issues/1115
Link: <https://github.com/nginx/unit/pull/1116>
Reviewed-by: Zhidao Hong <z.hong@f5.com>
Reviewed-by: Andrew Clayton <a.clayton@nginx.com>
Cc: Dan Callahan <d.callahan@f5.com>
Cc: Valentin Bartenev <vbartenev@gmail.com>
Signed-off-by: Alejandro Colomar <alx@kernel.org>
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The commit that added support for Unix sockets accepts abstract sockets
using '@' in the config, but we stored it internally using '\0'.
We want to support abstract sockets transparently to the user, so that
if the user configures unitd with '@', if we receive a query about the
current configuration, the user should see the same exact thing that was
configured. So, this commit avoids the transformation in the internal
state file, storing user input pristine, and we only transform the '@'
in temporary strings.
This commit fixes another bug, where we try to connect to abstract
sockets with a trailing '\0' in their name due to calling twice
nxt_sockaddr_parse() on the same string. By calling that function only
once with each copy of the string, we have fixed that bug.
The following code was responsible for this bug, which the second time
it was called, considered these sockets as file-backed (not abstract)
Unix socket, and so appended a '\0' to the socket name.
$ grepc -tfd nxt_sockaddr_unix_parse . | grep -A10 @
if (path[0] == '@') {
path[0] = '\0';
socklen--;
#if !(NXT_LINUX)
nxt_thread_log_error(NXT_LOG_ERR,
"abstract unix domain sockets are not supported");
return NULL;
#endif
}
sa = nxt_sockaddr_alloc(mp, socklen, addr->length);
This bug was found thanks to some experiment about using 'const' for
some strings.
And here's some history:
- 9041d276fc6a ("nxt_sockaddr_parse() introducted.")
This commit introduced support for abstract Unix sockets, but they
only worked as "servers", and not as "listeners". We corrupted the
JSON config file, and stored a \u0000. This also caused calling
connect(2) with a bogus trailing null byte, which tried to connect to
a different abstract socket.
- d8e0768a5bae ("Fixed support for abstract Unix sockets.")
This commit (partially) fixed support for abstract Unix sockets, so
they they worked also as listeners. We still corrupted the JSON
config file, and stored a \u0000. This caused calling connect(2)
(and now bind(2) too) with a bogus trailing null byte.
- e2aec6686a4d ("Storing abstract sockets with @ internally.")
This commit fixed the problem by which we were corrupting the config
file, but only for "listeners", not for "servers". (It also fixes
the issue about the terminating '\0'.) We completely forgot about
"servers", and other callers of the same function.
To reproduce the problem, I used the following config:
```json
{
"listeners": {
"*:80": {
"pass": "routes/u"
},
"unix:@abstract": {
"pass": "routes/a"
}
},
"routes": {
"u": [{
"action": {
"pass": "upstreams/u"
}
}],
"a": [{
"action": {
"return": 302,
"location": "/i/am/not/at/home/"
}
}]
},
"upstreams": {
"u": {
"servers": {
"unix:@abstract": {}
}
}
}
}
```
And then check the state file:
$ sudo cat /opt/local/nginx/unit/master/var/lib/unit/conf.json \
| jq . \
| grep unix;
"unix:@abstract": {
"unix:\u0000abstract": {}
After this patch, the state file has a '@' as expected:
$ sudo cat /opt/local/nginx/unit/unix/var/lib/unit/conf.json \
| jq . \
| grep unix;
"unix:@abstract": {
"unix:@abstract": {}
Regarding the trailing null byte, here are some tests:
$ sudo strace -f -e 'bind,connect' /opt/local/nginx/unit/d8e0/sbin/unitd \
|& grep abstract;
[pid 22406] bind(10, {sa_family=AF_UNIX, sun_path=@"abstract\0"}, 12) = 0
[pid 22410] connect(134, {sa_family=AF_UNIX, sun_path=@"abstract\0"}, 12) = 0
^C
$ sudo killall unitd
$ sudo strace -f -e 'bind,connect' /opt/local/nginx/unit/master/sbin/unitd \
|& grep abstract;
[pid 22449] bind(10, {sa_family=AF_UNIX, sun_path=@"abstract"}, 11) = 0
[pid 22453] connect(134, {sa_family=AF_UNIX, sun_path=@"abstract\0"}, 12) = -1 ECONNREFUSED (Connection refused)
^C
$ sudo killall unitd
$ sudo strace -f -e 'bind,connect' /opt/local/nginx/unit/unix/sbin/unitd \
|& grep abstract;
[pid 22488] bind(10, {sa_family=AF_UNIX, sun_path=@"abstract"}, 11) = 0
[pid 22492] connect(134, {sa_family=AF_UNIX, sun_path=@"abstract"}, 11) = 0
^C
Fixes: 9041d276fc6a ("nxt_sockaddr_parse() introducted.")
Fixes: d8e0768a5bae ("Fixed support for abstract Unix sockets.")
Fixes: e2aec6686a4d ("Storing abstract sockets with @ internally.")
Link: <https://github.com/nginx/unit/pull/1108>
Reviewed-by: Andrew Clayton <a.clayton@nginx.com>
Cc: Liam Crilly <liam.crilly@nginx.com>
Cc: Zhidao Hong <z.hong@f5.com>
Signed-off-by: Alejandro Colomar <alx@kernel.org>
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Refactor.
Reviewed-by: Andrew Clayton <a.clayton@nginx.com>
Cc: Zhidao Hong <z.hong@f5.com>
Signed-off-by: Alejandro Colomar <alx@kernel.org>
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This function is like nxt_conf_get_string(), but creates a new copy,
so that it can be modified without corrupting the configuration string.
Reviewed-by: Andrew Clayton <a.clayton@nginx.com>
Cc: Zhidao Hong <z.hong@f5.com>
Signed-off-by: Alejandro Colomar <alx@kernel.org>
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With the previous commit which introduced the use of the
NXT_CONF_VLDT_REQUIRED flag, we no longer need to do this separate
validation, it's only purpose was to check if the three uidmap/gidmap
settings had been provided.
Reviewed-by: Zhidao Hong <z.hong@f5.com>
Signed-off-by: Andrew Clayton <a.clayton@nginx.com>
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Use the NXT_CONF_VLDT_REQUIRED flag on the app_procmap members. These
three settings are required.
These are for the uidmap & gidmap settings in the config.
Suggested-by: Zhidao HONG <z.hong@f5.com>
Reviewed-by: Zhidao Hong <z.hong@f5.com>
Signed-off-by: Andrew Clayton <a.clayton@nginx.com>
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Andrei reported an issue on arm64 where he was seeing the following
error message when running the tests
2024/01/17 18:32:31.109 [error] 54904#54904 "gidmap" field has an entry with "size": 1, but for unprivileged unit it must be 1.
This error message is guarded by the following if statement
if (nxt_slow_path(m.size > 1)
Turns out size was indeed > 1, in this case it was 289356276058554369,
m.size is defined as a nxt_int_t, which on arm64 is actually 8 bytes,
but was being printed as a signed int (4 bytes) and by chance/undefined
behaviour comes out as 1.
But why is size so big? In this case it should have just been 1 with a
config of
'gidmap': [{'container': 0, 'host': os.getegid(), 'size': 1}],
This is due to nxt_int_t being 64bits on arm64 but using a conf type of
NXT_CONF_MAP_INT which means in nxt_conf_map_object() we would do (using
our m.size variable as an example)
ptr = nxt_pointer_to(data, map[i].offset);
...
ptr->i = num;
Where ptr is a union pointer and is now pointing at our m.size
Next we set m.size to the value of num (which is 1 in this case), via
ptr->i where i is a member of that union of type int.
So here we are setting a 64bit memory location (nxt_int_t on arm64)
through a 32bit (int) union alias, this means we are only setting the
lower half (4) of the bytes.
Whatever happens to be in the upper 4 bytes will remain, giving us our
exceptionally large value.
This is demonstrated by this program
#include <stdio.h>
#include <stdint.h>
int main(void)
{
int64_t num = -1; /* All 1's in two's complement */
union {
int32_t i32;
int64_t i64;
} *ptr;
ptr = (void *)#
ptr->i32 = 1;
printf("num : %lu / %ld\n", num, num);
ptr->i64 = 1;
printf("num : %ld\n", num);
return 0;
}
$ make union-32-64-issue
cc union-32-64-issue.c -o union-32-64-issue
$ ./union-32-64-issue
num : 18446744069414584321 / -4294967295
num : 1
However that is not the only issue, because the members of
nxt_clone_map_entry_t were specified as nxt_int_t's on the likes of
x86_64 this would be a 32bit signed integer. However uid/gids on Linux
at least are defined as unsigned integers, so a nxt_int_t would not be
big enough to hold all potential values.
We could make the nxt_uint_t's but then we're back to the above union
aliasing problem.
We could just set the memory for these variables to 0 and that would
work, however that's really just papering over the problem.
The right thing is to use a large enough sized type to store these
things, hence the previously introduced nxt_cred_t. This is an int64_t
which is plenty large enough.
So we switch the nxt_clone_map_entry_t structure members over to
nxt_cred_t's and use NXT_CONF_MAP_INT64 as the conf type, which then
uses the right sized union member in nxt_conf_map_object() to set these
variables.
Reported-by: Andrei Zeliankou <zelenkov@nginx.com>
Reviewed-by: Zhidao Hong <z.hong@f5.com>
Signed-off-by: Andrew Clayton <a.clayton@nginx.com>
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This is a generic type to represent a uid_t/gid_t on Linux when user
namespaces are in use.
Technically this only needs to be an unsigned int, but we make it an
int64_t so we can make use of the existing NXT_CONF_MAP_INT64 type.
This will be used in subsequent commits.
Reviewed-by: Zhidao Hong <z.hong@f5.com>
Signed-off-by: Andrew Clayton <a.clayton@nginx.com>
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Conditional access logging was introduced here:
https://github.com/nginx/unit/commit/4c91bebb50d06b28e369d68b23022caa072cf62d
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This feature allows users to specify conditions to control if access log
should be recorded. The "if" option supports a string and JavaScript code.
If its value is empty, 0, false, null, or undefined, the logs will not be
recorded. And the '!' as a prefix inverses the condition.
Example 1: Only log requests that sent a session cookie.
{
"access_log": {
"if": "$cookie_session",
"path": "..."
}
}
Example 2: Do not log health check requests.
{
"access_log": {
"if": "`${uri == '/health' ? false : true}`",
"path": "..."
}
}
Example 3: Only log requests when the time is before 22:00.
{
"access_log": {
"if": "`${new Date().getHours() < 22}`",
"path": "..."
}
}
or
{
"access_log": {
"if": "!`${new Date().getHours() >= 22}`",
"path": "..."
}
}
Closes: https://github.com/nginx/unit/issues/594
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This is in preparation for adding conditional access logging.
No functional changes.
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According to the Node.js documenation this variable
should only include numbering scheme.
Thanks to @dbit-xia.
Closes: https://github.com/nginx/unit/issues/1085
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I hate having to type so much just for the useful help.
Reviewed-by: Andrew Clayton <a.clayton@nginx.com>
Signed-off-by: Alejandro Colomar <alx@kernel.org>
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