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-rw-r--r--src/core/dbus-execute.c19
-rw-r--r--src/core/execute.c62
-rw-r--r--src/core/execute.h3
-rw-r--r--src/core/load-fragment-gperf.gperf.m42
-rw-r--r--src/core/load-fragment.c33
-rw-r--r--src/core/load-fragment.h1
6 files changed, 7 insertions, 113 deletions
diff --git a/src/core/dbus-execute.c b/src/core/dbus-execute.c
index f2fc301f8e..973a60187d 100644
--- a/src/core/dbus-execute.c
+++ b/src/core/dbus-execute.c
@@ -312,7 +312,7 @@ static int property_get_ambient_capabilities(
return sd_bus_message_append(reply, "t", c->capability_ambient_set);
}
-static int property_get_capabilities(
+static int property_get_empty_string(
sd_bus *bus,
const char *path,
const char *interface,
@@ -321,23 +321,10 @@ static int property_get_capabilities(
void *userdata,
sd_bus_error *error) {
- ExecContext *c = userdata;
- _cleanup_cap_free_charp_ char *t = NULL;
- const char *s;
-
assert(bus);
assert(reply);
- assert(c);
-
- if (c->capabilities)
- s = t = cap_to_text(c->capabilities, NULL);
- else
- s = "";
-
- if (!s)
- return -ENOMEM;
- return sd_bus_message_append(reply, "s", s);
+ return sd_bus_message_append(reply, "s", "");
}
static int property_get_syscall_filter(
@@ -700,7 +687,7 @@ const sd_bus_vtable bus_exec_vtable[] = {
SD_BUS_PROPERTY("SyslogLevelPrefix", "b", bus_property_get_bool, offsetof(ExecContext, syslog_level_prefix), SD_BUS_VTABLE_PROPERTY_CONST),
SD_BUS_PROPERTY("SyslogLevel", "i", property_get_syslog_level, 0, SD_BUS_VTABLE_PROPERTY_CONST),
SD_BUS_PROPERTY("SyslogFacility", "i", property_get_syslog_facility, 0, SD_BUS_VTABLE_PROPERTY_CONST),
- SD_BUS_PROPERTY("Capabilities", "s", property_get_capabilities, 0, SD_BUS_VTABLE_PROPERTY_CONST),
+ SD_BUS_PROPERTY("Capabilities", "s", property_get_empty_string, 0, SD_BUS_VTABLE_PROPERTY_CONST|SD_BUS_VTABLE_HIDDEN),
SD_BUS_PROPERTY("SecureBits", "i", bus_property_get_int, offsetof(ExecContext, secure_bits), SD_BUS_VTABLE_PROPERTY_CONST),
SD_BUS_PROPERTY("CapabilityBoundingSet", "t", property_get_capability_bounding_set, 0, SD_BUS_VTABLE_PROPERTY_CONST),
SD_BUS_PROPERTY("AmbientCapabilities", "t", property_get_ambient_capabilities, 0, SD_BUS_VTABLE_PROPERTY_CONST),
diff --git a/src/core/execute.c b/src/core/execute.c
index 30f7e05b90..184c72dbe7 100644
--- a/src/core/execute.c
+++ b/src/core/execute.c
@@ -746,10 +746,10 @@ static int enforce_groups(const ExecContext *context, const char *username, gid_
static int enforce_user(const ExecContext *context, uid_t uid) {
assert(context);
- /* Sets (but doesn't lookup) the uid and make sure we keep the
+ /* Sets (but doesn't look up) the uid and make sure we keep the
* capabilities while doing so. */
- if (context->capabilities || context->capability_ambient_set != 0) {
+ if (context->capability_ambient_set != 0) {
/* First step: If we need to keep capabilities but
* drop privileges we need to make sure we keep our
@@ -761,31 +761,9 @@ static int enforce_user(const ExecContext *context, uid_t uid) {
if (prctl(PR_SET_SECUREBITS, sb) < 0)
return -errno;
}
-
- /* Second step: set the capabilities. This will reduce
- * the capabilities to the minimum we need. */
-
- if (context->capabilities) {
- _cleanup_cap_free_ cap_t d = NULL;
- static const cap_value_t bits[] = {
- CAP_SETUID, /* Necessary so that we can run setresuid() below */
- CAP_SETPCAP /* Necessary so that we can set PR_SET_SECUREBITS later on */
- };
-
- d = cap_dup(context->capabilities);
- if (!d)
- return -errno;
-
- if (cap_set_flag(d, CAP_EFFECTIVE, ELEMENTSOF(bits), bits, CAP_SET) < 0 ||
- cap_set_flag(d, CAP_PERMITTED, ELEMENTSOF(bits), bits, CAP_SET) < 0)
- return -errno;
-
- if (cap_set_proc(d) < 0)
- return -errno;
- }
}
- /* Third step: actually set the uids */
+ /* Second step: actually set the uids */
if (setresuid(uid, uid, uid) < 0)
return -errno;
@@ -1874,21 +1852,6 @@ static int exec_child(
*exit_status = EXIT_CAPABILITIES;
return r;
}
-
- if (context->capabilities) {
-
- /* The capabilities in ambient set need to be also in the inherited
- * set. If they aren't, trying to get them will fail. Add the ambient
- * set inherited capabilities to the capability set in the context.
- * This is needed because if capabilities are set (using "Capabilities="
- * keyword), they will override whatever we set now. */
-
- r = capability_update_inherited_set(context->capabilities, context->capability_ambient_set);
- if (r < 0) {
- *exit_status = EXIT_CAPABILITIES;
- return r;
- }
- }
}
if (context->user) {
@@ -1927,12 +1890,6 @@ static int exec_child(
return -errno;
}
- if (context->capabilities)
- if (cap_set_proc(context->capabilities) < 0) {
- *exit_status = EXIT_CAPABILITIES;
- return -errno;
- }
-
if (context->no_new_privileges)
if (prctl(PR_SET_NO_NEW_PRIVS, 1, 0, 0, 0) < 0) {
*exit_status = EXIT_NO_NEW_PRIVILEGES;
@@ -2175,11 +2132,6 @@ void exec_context_done(ExecContext *c) {
c->pam_name = mfree(c->pam_name);
- if (c->capabilities) {
- cap_free(c->capabilities);
- c->capabilities = NULL;
- }
-
c->read_only_dirs = strv_free(c->read_only_dirs);
c->read_write_dirs = strv_free(c->read_write_dirs);
c->inaccessible_dirs = strv_free(c->inaccessible_dirs);
@@ -2538,14 +2490,6 @@ void exec_context_dump(ExecContext *c, FILE* f, const char *prefix) {
prefix, strna(lvl_str));
}
- if (c->capabilities) {
- _cleanup_cap_free_charp_ char *t;
-
- t = cap_to_text(c->capabilities, NULL);
- if (t)
- fprintf(f, "%sCapabilities: %s\n", prefix, t);
- }
-
if (c->secure_bits)
fprintf(f, "%sSecure Bits:%s%s%s%s%s%s\n",
prefix,
diff --git a/src/core/execute.h b/src/core/execute.h
index f7205701f4..41148bcea2 100644
--- a/src/core/execute.h
+++ b/src/core/execute.h
@@ -155,10 +155,7 @@ struct ExecContext {
unsigned long mount_flags;
uint64_t capability_bounding_set;
-
uint64_t capability_ambient_set;
-
- cap_t capabilities;
int secure_bits;
int syslog_priority;
diff --git a/src/core/load-fragment-gperf.gperf.m4 b/src/core/load-fragment-gperf.gperf.m4
index fde64c9747..5568b4696f 100644
--- a/src/core/load-fragment-gperf.gperf.m4
+++ b/src/core/load-fragment-gperf.gperf.m4
@@ -45,7 +45,7 @@ $1.SyslogIdentifier, config_parse_unit_string_printf, 0,
$1.SyslogFacility, config_parse_log_facility, 0, offsetof($1, exec_context.syslog_priority)
$1.SyslogLevel, config_parse_log_level, 0, offsetof($1, exec_context.syslog_priority)
$1.SyslogLevelPrefix, config_parse_bool, 0, offsetof($1, exec_context.syslog_level_prefix)
-$1.Capabilities, config_parse_exec_capabilities, 0, offsetof($1, exec_context)
+$1.Capabilities, config_parse_warn_compat, DISABLED_LEGACY, offsetof($1, exec_context)
$1.SecureBits, config_parse_exec_secure_bits, 0, offsetof($1, exec_context)
$1.CapabilityBoundingSet, config_parse_capability_set, 0, offsetof($1, exec_context.capability_bounding_set)
$1.AmbientCapabilities, config_parse_capability_set, 0, offsetof($1, exec_context.capability_ambient_set)
diff --git a/src/core/load-fragment.c b/src/core/load-fragment.c
index ba551fb41d..b31bf83f47 100644
--- a/src/core/load-fragment.c
+++ b/src/core/load-fragment.c
@@ -951,38 +951,6 @@ int config_parse_exec_cpu_affinity(const char *unit,
return 0;
}
-int config_parse_exec_capabilities(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) {
-
- ExecContext *c = data;
- cap_t cap;
-
- assert(filename);
- assert(lvalue);
- assert(rvalue);
- assert(data);
-
- cap = cap_from_text(rvalue);
- if (!cap) {
- log_syntax(unit, LOG_ERR, filename, line, errno, "Failed to parse capabilities, ignoring: %s", rvalue);
- return 0;
- }
-
- if (c->capabilities)
- cap_free(c->capabilities);
- c->capabilities = cap;
-
- return 0;
-}
-
int config_parse_exec_secure_bits(const char *unit,
const char *filename,
unsigned line,
@@ -3797,7 +3765,6 @@ void unit_dump_config_items(FILE *f) {
{ config_parse_input, "INPUT" },
{ config_parse_log_facility, "FACILITY" },
{ config_parse_log_level, "LEVEL" },
- { config_parse_exec_capabilities, "CAPABILITIES" },
{ config_parse_exec_secure_bits, "SECUREBITS" },
{ config_parse_capability_set, "BOUNDINGSET" },
{ config_parse_limit, "LIMIT" },
diff --git a/src/core/load-fragment.h b/src/core/load-fragment.h
index 372d05a61d..34f15afa62 100644
--- a/src/core/load-fragment.h
+++ b/src/core/load-fragment.h
@@ -52,7 +52,6 @@ int config_parse_exec_io_priority(const char *unit, const char *filename, unsign
int config_parse_exec_cpu_sched_policy(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);
int config_parse_exec_cpu_sched_prio(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);
int config_parse_exec_cpu_affinity(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);
-int config_parse_exec_capabilities(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);
int config_parse_exec_secure_bits(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);
int config_parse_capability_set(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);
int config_parse_limit(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);
generated by cgit v1.2.3-54-g00ecf (git 2.45.2) at 2024-12-18 21:55:27 +0000