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-rw-r--r--src/core/unit-printf.c168
-rw-r--r--src/shared/install-printf.c52
-rw-r--r--src/shared/install.c31
-rw-r--r--src/shared/install.h1
-rw-r--r--src/test/test-unit-file.c51
-rw-r--r--src/test/test-unit-name.c27
6 files changed, 78 insertions, 252 deletions
diff --git a/src/core/unit-printf.c b/src/core/unit-printf.c
index 721c8ccce9..f587a5a141 100644
--- a/src/core/unit-printf.c
+++ b/src/core/unit-printf.c
@@ -159,162 +159,43 @@ static int specifier_runtime(char specifier, void *data, void *userdata, char **
}
static int specifier_user_name(char specifier, void *data, void *userdata, char **ret) {
- char *printed = NULL;
- Unit *u = userdata;
- ExecContext *c;
- int r = 0;
-
- assert(u);
-
- c = unit_get_exec_context(u);
- if (!c)
- return -EOPNOTSUPP;
-
- if (u->manager->running_as == MANAGER_SYSTEM) {
-
- /* We cannot use NSS from PID 1, hence try to make the
- * best of it in that case, and fail if we can't help
- * it */
-
- if (!c->user || streq(c->user, "root") || streq(c->user, "0"))
- printed = strdup(specifier == 'u' ? "root" : "0");
- else {
- if (specifier == 'u')
- printed = strdup(c->user);
- else {
- uid_t uid;
+ char *t;
- r = parse_uid(c->user, &uid);
- if (r < 0)
- return -ENODATA;
-
- r = asprintf(&printed, UID_FMT, uid);
- }
- }
-
- } else {
- _cleanup_free_ char *tmp = NULL;
- const char *username = NULL;
- uid_t uid;
-
- if (c->user)
- username = c->user;
- else
- /* get USER env from env or our own uid */
- username = tmp = getusername_malloc();
-
- /* fish username from passwd */
- r = get_user_creds(&username, &uid, NULL, NULL, NULL);
- if (r < 0)
- return r;
-
- if (specifier == 'u')
- printed = strdup(username);
- else
- r = asprintf(&printed, UID_FMT, uid);
- }
+ /* If we are UID 0 (root), this will not result in NSS,
+ * otherwise it might. This is good, as we want to be able to
+ * run this in PID 1, where our user ID is 0, but where NSS
+ * lookups are not allowed. */
- if (r < 0 || !printed)
+ t = getusername_malloc();
+ if (!t)
return -ENOMEM;
- *ret = printed;
+ *ret = t;
return 0;
}
-static int specifier_user_home(char specifier, void *data, void *userdata, char **ret) {
- Unit *u = userdata;
- ExecContext *c;
- char *n;
- int r;
-
- assert(u);
-
- c = unit_get_exec_context(u);
- if (!c)
- return -EOPNOTSUPP;
-
- if (u->manager->running_as == MANAGER_SYSTEM) {
-
- /* We cannot use NSS from PID 1, hence try to make the
- * best of it if we can, but fail if we can't */
-
- if (!c->user || streq(c->user, "root") || streq(c->user, "0"))
- n = strdup("/root");
- else
- return -EOPNOTSUPP;
-
- } else {
+static int specifier_user_id(char specifier, void *data, void *userdata, char **ret) {
- /* return HOME if set, otherwise from passwd */
- if (!c || !c->user) {
- r = get_home_dir(&n);
- if (r < 0)
- return r;
- } else {
- const char *username, *home;
-
- username = c->user;
- r = get_user_creds(&username, NULL, NULL, &home, NULL);
- if (r < 0)
- return r;
-
- n = strdup(home);
- }
- }
-
- if (!n)
+ if (asprintf(ret, UID_FMT, getuid()) < 0)
return -ENOMEM;
- *ret = n;
return 0;
}
-static int specifier_user_shell(char specifier, void *data, void *userdata, char **ret) {
- Unit *u = userdata;
- ExecContext *c;
- char *n;
- int r;
-
- assert(u);
-
- c = unit_get_exec_context(u);
- if (!c)
- return -EOPNOTSUPP;
-
- if (u->manager->running_as == MANAGER_SYSTEM) {
-
- /* We cannot use NSS from PID 1, hence try to make the
- * best of it if we can, but fail if we can't */
-
- if (!c->user || streq(c->user, "root") || streq(c->user, "0"))
- n = strdup("/bin/sh");
- else
- return -EOPNOTSUPP;
-
- } else {
+static int specifier_user_home(char specifier, void *data, void *userdata, char **ret) {
- /* return /bin/sh for root, otherwise the value from passwd */
- if (!c->user) {
- r = get_shell(&n);
- if (r < 0)
- return r;
- } else {
- const char *username, *shell;
+ /* On PID 1 (which runs as root) this will not result in NSS,
+ * which is good. See above */
- username = c->user;
- r = get_user_creds(&username, NULL, NULL, NULL, &shell);
- if (r < 0)
- return r;
+ return get_home_dir(ret);
+}
- n = strdup(shell);
- }
- }
+static int specifier_user_shell(char specifier, void *data, void *userdata, char **ret) {
- if (!n)
- return -ENOMEM;
+ /* On PID 1 (which runs as root) this will not result in NSS,
+ * which is good. See above */
- *ret = n;
- return 0;
+ return get_shell(ret);
}
int unit_name_printf(Unit *u, const char* format, char **ret) {
@@ -354,10 +235,10 @@ int unit_full_printf(Unit *u, const char *format, char **ret) {
* %r where units in this slice are placed in the cgroup tree
* %R the root of this systemd's instance tree
* %t the runtime directory to place sockets in (e.g. "/run" or $XDG_RUNTIME_DIR)
- * %U the UID of the configured user or running user
- * %u the username of the configured user or running user
- * %h the homedir of the configured user or running user
- * %s the shell of the configured user or running user
+ * %U the UID of the running user
+ * %u the username of the running user
+ * %h the homedir of the running user
+ * %s the shell of the running user
* %m the machine ID of the running system
* %H the host name of the running system
* %b the boot ID of the running system
@@ -377,7 +258,8 @@ int unit_full_printf(Unit *u, const char *format, char **ret) {
{ 'r', specifier_cgroup_slice, NULL },
{ 'R', specifier_cgroup_root, NULL },
{ 't', specifier_runtime, NULL },
- { 'U', specifier_user_name, NULL },
+
+ { 'U', specifier_user_id, NULL },
{ 'u', specifier_user_name, NULL },
{ 'h', specifier_user_home, NULL },
{ 's', specifier_user_shell, NULL },
diff --git a/src/shared/install-printf.c b/src/shared/install-printf.c
index e1cb5d27ff..74b909d34d 100644
--- a/src/shared/install-printf.c
+++ b/src/shared/install-printf.c
@@ -67,42 +67,28 @@ static int specifier_instance(char specifier, void *data, void *userdata, char *
}
static int specifier_user_name(char specifier, void *data, void *userdata, char **ret) {
- UnitFileInstallInfo *i = userdata;
- const char *username;
- _cleanup_free_ char *tmp = NULL;
- char *printed = NULL;
-
- assert(i);
+ char *t;
- if (i->user)
- username = i->user;
- else
- /* get USER env from env or our own uid */
- username = tmp = getusername_malloc();
-
- switch (specifier) {
- case 'u':
- printed = strdup(username);
- break;
- case 'U': {
- /* fish username from passwd */
- uid_t uid;
- int r;
-
- r = get_user_creds(&username, &uid, NULL, NULL, NULL);
- if (r < 0)
- return r;
-
- if (asprintf(&printed, UID_FMT, uid) < 0)
- return -ENOMEM;
- break;
- }}
+ /* If we are UID 0 (root), this will not result in NSS,
+ * otherwise it might. This is good, as we want to be able to
+ * run this in PID 1, where our user ID is 0, but where NSS
+ * lookups are not allowed. */
+ t = getusername_malloc();
+ if (!t)
+ return -ENOMEM;
- *ret = printed;
+ *ret = t;
return 0;
}
+static int specifier_user_id(char specifier, void *data, void *userdata, char **ret) {
+
+ if (asprintf(ret, UID_FMT, getuid()) < 0)
+ return -ENOMEM;
+
+ return 0;
+}
int install_full_printf(UnitFileInstallInfo *i, const char *format, char **ret) {
@@ -114,8 +100,8 @@ int install_full_printf(UnitFileInstallInfo *i, const char *format, char **ret)
* %p: the prefix (foo)
* %i: the instance (bar)
- * %U the UID of the configured user or running user
- * %u the username of the configured user or running user
+ * %U the UID of the running user
+ * %u the username of running user
* %m the machine ID of the running system
* %H the host name of the running system
* %b the boot ID of the running system
@@ -128,7 +114,7 @@ int install_full_printf(UnitFileInstallInfo *i, const char *format, char **ret)
{ 'p', specifier_prefix, NULL },
{ 'i', specifier_instance, NULL },
- { 'U', specifier_user_name, NULL },
+ { 'U', specifier_user_id, NULL },
{ 'u', specifier_user_name, NULL },
{ 'm', specifier_machine_id, NULL },
diff --git a/src/shared/install.c b/src/shared/install.c
index 17e4ea0b85..9b6464ba9d 100644
--- a/src/shared/install.c
+++ b/src/shared/install.c
@@ -855,36 +855,6 @@ static int config_parse_also(
return 0;
}
-static int config_parse_user(
- const char *unit,
- const char *filename,
- unsigned line,
- const char *section,
- unsigned section_line,
- const char *lvalue,
- int ltype,
- const char *rvalue,
- void *data,
- void *userdata) {
-
- UnitFileInstallInfo *i = data;
- char *printed;
- int r;
-
- assert(filename);
- assert(lvalue);
- assert(rvalue);
-
- r = install_full_printf(i, rvalue, &printed);
- if (r < 0)
- return r;
-
- free(i->user);
- i->user = printed;
-
- return 0;
-}
-
static int config_parse_default_instance(
const char *unit,
const char *filename,
@@ -933,7 +903,6 @@ static int unit_file_load(
{ "Install", "RequiredBy", config_parse_strv, 0, &info->required_by },
{ "Install", "DefaultInstance", config_parse_default_instance, 0, info },
{ "Install", "Also", config_parse_also, 0, c },
- { "Exec", "User", config_parse_user, 0, info },
{}
};
diff --git a/src/shared/install.h b/src/shared/install.h
index b1ab66f0d4..45a417df92 100644
--- a/src/shared/install.h
+++ b/src/shared/install.h
@@ -95,7 +95,6 @@ enum UnitFileType {
struct UnitFileInstallInfo {
char *name;
char *path;
- char *user;
char **aliases;
char **wanted_by;
diff --git a/src/test/test-unit-file.c b/src/test/test-unit-file.c
index a8e5b6feee..c3973a316e 100644
--- a/src/test/test-unit-file.c
+++ b/src/test/test-unit-file.c
@@ -40,6 +40,7 @@
#include "string-util.h"
#include "strv.h"
#include "test-helper.h"
+#include "user-util.h"
#include "util.h"
static int test_unit_file_get_set(void) {
@@ -558,76 +559,66 @@ static void test_load_env_file_5(void) {
static void test_install_printf(void) {
char name[] = "name.service",
- path[] = "/run/systemd/system/name.service",
- user[] = "xxxx-no-such-user";
- UnitFileInstallInfo i = {name, path, user};
- UnitFileInstallInfo i2 = {name, path, NULL};
+ path[] = "/run/systemd/system/name.service";
+ UnitFileInstallInfo i = { .name = name, .path = path, };
+ UnitFileInstallInfo i2 = { .name= name, .path = path, };
char name3[] = "name@inst.service",
path3[] = "/run/systemd/system/name.service";
- UnitFileInstallInfo i3 = {name3, path3, user};
- UnitFileInstallInfo i4 = {name3, path3, NULL};
+ UnitFileInstallInfo i3 = { .name = name3, .path = path3, };
+ UnitFileInstallInfo i4 = { .name = name3, .path = path3, };
- _cleanup_free_ char *mid, *bid, *host;
+ _cleanup_free_ char *mid = NULL, *bid = NULL, *host = NULL, *uid = NULL, *user = NULL;
assert_se(specifier_machine_id('m', NULL, NULL, &mid) >= 0 && mid);
assert_se(specifier_boot_id('b', NULL, NULL, &bid) >= 0 && bid);
assert_se((host = gethostname_malloc()));
+ assert_se((user = getusername_malloc()));
+ assert_se(asprintf(&uid, UID_FMT, getuid()) >= 0);
#define expect(src, pattern, result) \
do { \
_cleanup_free_ char *t = NULL; \
_cleanup_free_ char \
*d1 = strdup(i.name), \
- *d2 = strdup(i.path), \
- *d3 = strdup(i.user); \
+ *d2 = strdup(i.path); \
assert_se(install_full_printf(&src, pattern, &t) >= 0 || !result); \
memzero(i.name, strlen(i.name)); \
memzero(i.path, strlen(i.path)); \
- memzero(i.user, strlen(i.user)); \
- assert_se(d1 && d2 && d3); \
+ assert_se(d1 && d2); \
if (result) { \
printf("%s\n", t); \
- assert_se(streq(t, result)); \
- } else assert_se(t == NULL); \
+ assert_se(streq(t, result)); \
+ } else assert_se(t == NULL); \
strcpy(i.name, d1); \
strcpy(i.path, d2); \
- strcpy(i.user, d3); \
} while(false)
- assert_se(setenv("USER", "root", 1) == 0);
-
expect(i, "%n", "name.service");
expect(i, "%N", "name");
expect(i, "%p", "name");
expect(i, "%i", "");
- expect(i, "%u", "xxxx-no-such-user");
-
- DISABLE_WARNING_NONNULL;
- expect(i, "%U", NULL);
- REENABLE_WARNING;
+ expect(i, "%u", user);
+ expect(i, "%U", uid);
expect(i, "%m", mid);
expect(i, "%b", bid);
expect(i, "%H", host);
- expect(i2, "%u", "root");
- expect(i2, "%U", "0");
+ expect(i2, "%u", user);
+ expect(i2, "%U", uid);
expect(i3, "%n", "name@inst.service");
expect(i3, "%N", "name@inst");
expect(i3, "%p", "name");
- expect(i3, "%u", "xxxx-no-such-user");
-
- DISABLE_WARNING_NONNULL;
- expect(i3, "%U", NULL);
- REENABLE_WARNING;
+ expect(i3, "%u", user);
+ expect(i3, "%U", uid);
expect(i3, "%m", mid);
expect(i3, "%b", bid);
expect(i3, "%H", host);
- expect(i4, "%u", "root");
- expect(i4, "%U", "0");
+ expect(i4, "%u", user);
+ expect(i4, "%U", uid);
}
static uint64_t make_cap(int cap) {
diff --git a/src/test/test-unit-name.c b/src/test/test-unit-name.c
index 9db7853dd4..842ca40102 100644
--- a/src/test/test-unit-name.c
+++ b/src/test/test-unit-name.c
@@ -37,6 +37,7 @@
#include "unit-name.h"
#include "unit-printf.h"
#include "unit.h"
+#include "user-util.h"
#include "util.h"
static void test_unit_name_is_valid(void) {
@@ -193,15 +194,15 @@ static int test_unit_printf(void) {
Unit *u, *u2;
int r;
- _cleanup_free_ char *mid, *bid, *host, *root_uid;
- struct passwd *root;
+ _cleanup_free_ char *mid = NULL, *bid = NULL, *host = NULL, *uid = NULL, *user = NULL, *shell = NULL, *home = NULL;
assert_se(specifier_machine_id('m', NULL, NULL, &mid) >= 0 && mid);
assert_se(specifier_boot_id('b', NULL, NULL, &bid) >= 0 && bid);
- assert_se((host = gethostname_malloc()));
-
- assert_se((root = getpwnam("root")));
- assert_se(asprintf(&root_uid, "%d", (int) root->pw_uid) > 0);
+ assert_se(host = gethostname_malloc());
+ assert_se(user = getusername_malloc());
+ assert_se(asprintf(&uid, UID_FMT, getuid()));
+ assert_se(get_home_dir(&home) >= 0);
+ assert_se(get_shell(&shell) >= 0);
r = manager_new(MANAGER_USER, true, &m);
if (r == -EPERM || r == -EACCES || r == -EADDRINUSE) {
@@ -222,8 +223,6 @@ static int test_unit_printf(void) {
assert_se(streq(t, expected)); \
}
- assert_se(setenv("USER", "root", 1) == 0);
- assert_se(setenv("HOME", "/root", 1) == 0);
assert_se(setenv("XDG_RUNTIME_DIR", "/run/user/1/", 1) == 0);
assert_se(u = unit_new(m, sizeof(Service)));
@@ -242,9 +241,9 @@ static int test_unit_printf(void) {
expect(u, "%p", "blah");
expect(u, "%P", "blah");
expect(u, "%i", "");
- expect(u, "%u", root->pw_name);
- expect(u, "%U", root_uid);
- expect(u, "%h", root->pw_dir);
+ expect(u, "%u", user);
+ expect(u, "%U", uid);
+ expect(u, "%h", home);
expect(u, "%m", mid);
expect(u, "%b", bid);
expect(u, "%H", host);
@@ -262,9 +261,9 @@ static int test_unit_printf(void) {
expect(u2, "%P", "blah");
expect(u2, "%i", "foo-foo");
expect(u2, "%I", "foo/foo");
- expect(u2, "%u", root->pw_name);
- expect(u2, "%U", root_uid);
- expect(u2, "%h", root->pw_dir);
+ expect(u2, "%u", user);
+ expect(u2, "%U", uid);
+ expect(u2, "%h", home);
expect(u2, "%m", mid);
expect(u2, "%b", bid);
expect(u2, "%H", host);
generated by cgit v1.2.3-54-g00ecf (git 2.45.2) at 2024-11-13 12:19:01 +0000