Using ConditionSecurity a unit can depend on a security module being enabled/disabled. For now the only recognized security module is SELinux.
I'd like to use this feature for a unit that creates /.autorelabel if SELinux is disabled, to ensure a relabel is done automatically when the system is later rebooted with SELinux enabled. --- src/condition.c | 16 ++++++++++++++++ src/condition.h | 1 + src/load-fragment.c | 1 + 3 files changed, 18 insertions(+), 0 deletions(-) diff --git a/src/condition.c b/src/condition.c index 5ab77d8..ee0809f 100644 --- a/src/condition.c +++ b/src/condition.c @@ -24,6 +24,10 @@ #include <string.h> #include <unistd.h> +#ifdef HAVE_SELINUX +#include <selinux/selinux.h> +#endif + #include "util.h" #include "condition.h" @@ -128,6 +132,14 @@ static bool test_virtualization(const char *parameter) { return streq(parameter, id); } +static bool test_security(const char *parameter) { +#ifdef HAVE_SELINUX + if (!strcasecmp(parameter, "SELinux")) + return is_selinux_enabled() > 0; +#endif + return false; +} + bool condition_test(Condition *c) { assert(c); @@ -157,6 +169,9 @@ bool condition_test(Condition *c) { case CONDITION_VIRTUALIZATION: return test_virtualization(c->parameter) == !c->negate; + case CONDITION_SECURITY: + return test_security(c->parameter) == !c->negate; + case CONDITION_NULL: return !c->negate; @@ -220,6 +235,7 @@ static const char* const condition_type_table[_CONDITION_TYPE_MAX] = { [CONDITION_DIRECTORY_NOT_EMPTY] = "ConditionDirectoryNotEmpty", [CONDITION_KERNEL_COMMAND_LINE] = "ConditionKernelCommandLine", [CONDITION_VIRTUALIZATION] = "ConditionVirtualization", + [CONDITION_SECURITY] = "ConditionSecurity", [CONDITION_NULL] = "ConditionNull" }; diff --git a/src/condition.h b/src/condition.h index 9913c8c..8402802 100644 --- a/src/condition.h +++ b/src/condition.h @@ -32,6 +32,7 @@ typedef enum ConditionType { CONDITION_DIRECTORY_NOT_EMPTY, CONDITION_KERNEL_COMMAND_LINE, CONDITION_VIRTUALIZATION, + CONDITION_SECURITY, CONDITION_NULL, _CONDITION_TYPE_MAX, _CONDITION_TYPE_INVALID = -1 diff --git a/src/load-fragment.c b/src/load-fragment.c index cb8c250..eea545c 100644 --- a/src/load-fragment.c +++ b/src/load-fragment.c @@ -1853,6 +1853,7 @@ static int load_from_path(Unit *u, const char *path) { { "ConditionDirectoryNotEmpty", config_parse_condition_path, CONDITION_DIRECTORY_NOT_EMPTY, u, "Unit" }, { "ConditionKernelCommandLine", config_parse_condition_string, CONDITION_KERNEL_COMMAND_LINE, u, "Unit" }, { "ConditionVirtualization", config_parse_condition_string, CONDITION_VIRTUALIZATION, u, "Unit" }, + { "ConditionSecurity", config_parse_condition_string, CONDITION_SECURITY, u, "Unit" }, { "ConditionNull", config_parse_condition_null, 0, u, "Unit" }, { "PIDFile", config_parse_path, 0, &u->service.pid_file, "Service" }, _______________________________________________ systemd-devel mailing list systemd-devel@lists.freedesktop.org http://lists.freedesktop.org/mailman/listinfo/systemd-devel