Move non-Java commands over from frameworks/base
Change-Id: I0571813c1cfcf66abd36eb9f178fc49b618e88a6
Signed-off-by: Mike Lockwood <lockwood@google.com>
diff --git a/cmds/servicemanager/service_manager.c b/cmds/servicemanager/service_manager.c
new file mode 100644
index 0000000..3314dc3
--- /dev/null
+++ b/cmds/servicemanager/service_manager.c
@@ -0,0 +1,285 @@
+/* Copyright 2008 The Android Open Source Project
+ */
+
+#include <stdio.h>
+#include <stdlib.h>
+#include <errno.h>
+#include <fcntl.h>
+
+#include <private/android_filesystem_config.h>
+
+#include "binder.h"
+
+#if 0
+#define ALOGI(x...) fprintf(stderr, "svcmgr: " x)
+#define ALOGE(x...) fprintf(stderr, "svcmgr: " x)
+#else
+#define LOG_TAG "ServiceManager"
+#include <cutils/log.h>
+#endif
+
+/* TODO:
+ * These should come from a config file or perhaps be
+ * based on some namespace rules of some sort (media
+ * uid can register media.*, etc)
+ */
+static struct {
+ unsigned uid;
+ const char *name;
+} allowed[] = {
+ { AID_MEDIA, "media.audio_flinger" },
+ { AID_MEDIA, "media.player" },
+ { AID_MEDIA, "media.camera" },
+ { AID_MEDIA, "media.audio_policy" },
+ { AID_DRM, "drm.drmManager" },
+ { AID_NFC, "nfc" },
+ { AID_BLUETOOTH, "bluetooth" },
+ { AID_RADIO, "radio.phone" },
+ { AID_RADIO, "radio.sms" },
+ { AID_RADIO, "radio.phonesubinfo" },
+ { AID_RADIO, "radio.simphonebook" },
+/* TODO: remove after phone services are updated: */
+ { AID_RADIO, "phone" },
+ { AID_RADIO, "sip" },
+ { AID_RADIO, "isms" },
+ { AID_RADIO, "iphonesubinfo" },
+ { AID_RADIO, "simphonebook" },
+ { AID_MEDIA, "common_time.clock" },
+ { AID_MEDIA, "common_time.config" },
+};
+
+void *svcmgr_handle;
+
+const char *str8(uint16_t *x)
+{
+ static char buf[128];
+ unsigned max = 127;
+ char *p = buf;
+
+ if (x) {
+ while (*x && max--) {
+ *p++ = *x++;
+ }
+ }
+ *p++ = 0;
+ return buf;
+}
+
+int str16eq(uint16_t *a, const char *b)
+{
+ while (*a && *b)
+ if (*a++ != *b++) return 0;
+ if (*a || *b)
+ return 0;
+ return 1;
+}
+
+int svc_can_register(unsigned uid, uint16_t *name)
+{
+ unsigned n;
+
+ if ((uid == 0) || (uid == AID_SYSTEM))
+ return 1;
+
+ for (n = 0; n < sizeof(allowed) / sizeof(allowed[0]); n++)
+ if ((uid == allowed[n].uid) && str16eq(name, allowed[n].name))
+ return 1;
+
+ return 0;
+}
+
+struct svcinfo
+{
+ struct svcinfo *next;
+ void *ptr;
+ struct binder_death death;
+ int allow_isolated;
+ unsigned len;
+ uint16_t name[0];
+};
+
+struct svcinfo *svclist = 0;
+
+struct svcinfo *find_svc(uint16_t *s16, unsigned len)
+{
+ struct svcinfo *si;
+
+ for (si = svclist; si; si = si->next) {
+ if ((len == si->len) &&
+ !memcmp(s16, si->name, len * sizeof(uint16_t))) {
+ return si;
+ }
+ }
+ return 0;
+}
+
+void svcinfo_death(struct binder_state *bs, void *ptr)
+{
+ struct svcinfo *si = ptr;
+ ALOGI("service '%s' died\n", str8(si->name));
+ if (si->ptr) {
+ binder_release(bs, si->ptr);
+ si->ptr = 0;
+ }
+}
+
+uint16_t svcmgr_id[] = {
+ 'a','n','d','r','o','i','d','.','o','s','.',
+ 'I','S','e','r','v','i','c','e','M','a','n','a','g','e','r'
+};
+
+
+void *do_find_service(struct binder_state *bs, uint16_t *s, unsigned len, unsigned uid)
+{
+ struct svcinfo *si;
+ si = find_svc(s, len);
+
+// ALOGI("check_service('%s') ptr = %p\n", str8(s), si ? si->ptr : 0);
+ if (si && si->ptr) {
+ if (!si->allow_isolated) {
+ // If this service doesn't allow access from isolated processes,
+ // then check the uid to see if it is isolated.
+ unsigned appid = uid % AID_USER;
+ if (appid >= AID_ISOLATED_START && appid <= AID_ISOLATED_END) {
+ return 0;
+ }
+ }
+ return si->ptr;
+ } else {
+ return 0;
+ }
+}
+
+int do_add_service(struct binder_state *bs,
+ uint16_t *s, unsigned len,
+ void *ptr, unsigned uid, int allow_isolated)
+{
+ struct svcinfo *si;
+ //ALOGI("add_service('%s',%p,%s) uid=%d\n", str8(s), ptr,
+ // allow_isolated ? "allow_isolated" : "!allow_isolated", uid);
+
+ if (!ptr || (len == 0) || (len > 127))
+ return -1;
+
+ if (!svc_can_register(uid, s)) {
+ ALOGE("add_service('%s',%p) uid=%d - PERMISSION DENIED\n",
+ str8(s), ptr, uid);
+ return -1;
+ }
+
+ si = find_svc(s, len);
+ if (si) {
+ if (si->ptr) {
+ ALOGE("add_service('%s',%p) uid=%d - ALREADY REGISTERED, OVERRIDE\n",
+ str8(s), ptr, uid);
+ svcinfo_death(bs, si);
+ }
+ si->ptr = ptr;
+ } else {
+ si = malloc(sizeof(*si) + (len + 1) * sizeof(uint16_t));
+ if (!si) {
+ ALOGE("add_service('%s',%p) uid=%d - OUT OF MEMORY\n",
+ str8(s), ptr, uid);
+ return -1;
+ }
+ si->ptr = ptr;
+ si->len = len;
+ memcpy(si->name, s, (len + 1) * sizeof(uint16_t));
+ si->name[len] = '\0';
+ si->death.func = svcinfo_death;
+ si->death.ptr = si;
+ si->allow_isolated = allow_isolated;
+ si->next = svclist;
+ svclist = si;
+ }
+
+ binder_acquire(bs, ptr);
+ binder_link_to_death(bs, ptr, &si->death);
+ return 0;
+}
+
+int svcmgr_handler(struct binder_state *bs,
+ struct binder_txn *txn,
+ struct binder_io *msg,
+ struct binder_io *reply)
+{
+ struct svcinfo *si;
+ uint16_t *s;
+ unsigned len;
+ void *ptr;
+ uint32_t strict_policy;
+ int allow_isolated;
+
+// ALOGI("target=%p code=%d pid=%d uid=%d\n",
+// txn->target, txn->code, txn->sender_pid, txn->sender_euid);
+
+ if (txn->target != svcmgr_handle)
+ return -1;
+
+ // Equivalent to Parcel::enforceInterface(), reading the RPC
+ // header with the strict mode policy mask and the interface name.
+ // Note that we ignore the strict_policy and don't propagate it
+ // further (since we do no outbound RPCs anyway).
+ strict_policy = bio_get_uint32(msg);
+ s = bio_get_string16(msg, &len);
+ if ((len != (sizeof(svcmgr_id) / 2)) ||
+ memcmp(svcmgr_id, s, sizeof(svcmgr_id))) {
+ fprintf(stderr,"invalid id %s\n", str8(s));
+ return -1;
+ }
+
+ switch(txn->code) {
+ case SVC_MGR_GET_SERVICE:
+ case SVC_MGR_CHECK_SERVICE:
+ s = bio_get_string16(msg, &len);
+ ptr = do_find_service(bs, s, len, txn->sender_euid);
+ if (!ptr)
+ break;
+ bio_put_ref(reply, ptr);
+ return 0;
+
+ case SVC_MGR_ADD_SERVICE:
+ s = bio_get_string16(msg, &len);
+ ptr = bio_get_ref(msg);
+ allow_isolated = bio_get_uint32(msg) ? 1 : 0;
+ if (do_add_service(bs, s, len, ptr, txn->sender_euid, allow_isolated))
+ return -1;
+ break;
+
+ case SVC_MGR_LIST_SERVICES: {
+ unsigned n = bio_get_uint32(msg);
+
+ si = svclist;
+ while ((n-- > 0) && si)
+ si = si->next;
+ if (si) {
+ bio_put_string16(reply, si->name);
+ return 0;
+ }
+ return -1;
+ }
+ default:
+ ALOGE("unknown code %d\n", txn->code);
+ return -1;
+ }
+
+ bio_put_uint32(reply, 0);
+ return 0;
+}
+
+int main(int argc, char **argv)
+{
+ struct binder_state *bs;
+ void *svcmgr = BINDER_SERVICE_MANAGER;
+
+ bs = binder_open(128*1024);
+
+ if (binder_become_context_manager(bs)) {
+ ALOGE("cannot become context manager (%s)\n", strerror(errno));
+ return -1;
+ }
+
+ svcmgr_handle = svcmgr;
+ binder_loop(bs, svcmgr_handler);
+ return 0;
+}