tequilaOS/platform_system_sepolicy
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Generalize levelFromUid support.

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Introduce a levelFrom=none|app|user|all syntax for specifying
per-app, per-user, or per-combination level assignment.
levelFromUid=true|false remains valid syntax but is deprecated.
levelFromUid=true is equivalent to levelFrom=app.

Update check_seapp to accept the new syntax.
Update seapp_contexts to document the new syntax and switch
from levelFromUid=true to levelFrom=app.  No change in behavior.

Change-Id: Ibaddeed9bc3e2586d524efc2f1faa5ce65dea470
Signed-off-by: Stephen Smalley <sds@tycho.nsa.gov>
This commit is contained in:
Stephen Smalley 2012-11-28 10:46:18 -05:00 committed by Gerrit Code Review
parent ae0fcf1fb6
commit 38084146e0
2 changed files with 14 additions and 3 deletions
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7
seapp_contexts
View file

@ -24,11 +24,12 @@
# Outputs:
# domain (string)
# type (string)
# levelFromUid (boolean)
# levelFrom (string; one of none, all, app, or user)
# level (string)
# Only entries that specify domain= will be used for app process labeling.
# Only entries that specify type= will be used for app directory labeling.
# levelfromUid is only supported for app UIDs presently.
# levelFrom=user is only supported for _app or _isolated UIDs.
# levelFrom=app or levelFrom=all is only supported for _app UIDs.
# level may be used to specify a fixed level for any UID.
#
isSystemServer=true domain=system
@ -36,7 +37,7 @@ user=system domain=system_app type=system_data_file
user=bluetooth domain=bluetooth type=bluetooth_data_file
user=nfc domain=nfc type=nfc_data_file
user=radio domain=radio type=radio_data_file
user=_app domain=untrusted_app type=app_data_file levelFromUid=true
user=_app domain=untrusted_app type=app_data_file levelFrom=app
user=_app seinfo=platform domain=platform_app type=platform_app_data_file
user=_app seinfo=shared domain=shared_app type=platform_app_data_file
user=_app seinfo=media domain=media_app type=platform_app_data_file

10
tools/check_seapp.c
View file

@ -162,6 +162,7 @@ key_map rules[] = {
{ .name = "domain", .type = dt_string, .dir = dir_out, .data = NULL },
{ .name = "type", .type = dt_string, .dir = dir_out, .data = NULL },
{ .name = "levelFromUid", .type = dt_bool, .dir = dir_out, .data = NULL },
{ .name = "levelFrom", .type = dt_string, .dir = dir_out, .data = NULL },
{ .name = "level", .type = dt_string, .dir = dir_out, .data = NULL },
};
@ -256,6 +257,15 @@ static int key_map_validate(key_map *m, int lineno) {
goto out;
}
if (!strcasecmp(key, "levelFrom") &&
(strcasecmp(value, "none") && strcasecmp(value, "all") &&
strcasecmp(value, "app") && strcasecmp(value, "user"))) {
log_error("Unknown levelFrom=%s on line: %d in file: %s\n",
value, lineno, out_file_name);
rc = 0;
goto out;
}
/*
* If their is no policy file present,
* then it is not in strict mode so just return.