*
* @APPLE_APACHE_LICENSE_HEADER_END@
*/
+
+#include "config.h"
+#include "liblaunch_public.h"
+#include "liblaunch_private.h"
+#include "liblaunch_internal.h"
+
#include <mach/mach.h>
#include <libkern/OSByteOrder.h>
#include <sys/types.h>
#include <unistd.h>
#include <errno.h>
#include <pwd.h>
+#include <assert.h>
-#include "launch.h"
-#include "launch_priv.h"
-#include "bootstrap_public.h"
-#include "bootstrap_private.h"
+#include "libbootstrap_public.h"
+#include "libvproc_public.h"
+#include "libvproc_private.h"
+#include "libvproc_internal.h"
/* __OSBogusByteSwap__() must not really exist in the symbol namespace
* in order for the following to generate an error at build time.
mach_port_t mp;
int err;
long long number;
- bool boolean;
+ uint32_t boolean; /* We'd use 'bool' but this struct needs to be used under Rosetta, and sizeof(bool) is different between PowerPC and Intel */
double float_num;
};
};
int fd;
};
-static void make_msg_and_cmsg(launch_data_t, void **, size_t *, int **, size_t *);
-static launch_data_t make_data(launch_t, size_t *, size_t *);
static launch_data_t launch_data_array_pop_first(launch_data_t where);
static int _fd(int fd);
static void launch_client_init(void);
static launch_data_t launch_msg_internal(launch_data_t d);
static void launch_mach_checkin_service(launch_data_t obj, const char *key, void *context);
+static launch_t in_flight_msg_recv_client;
static pthread_once_t _lc_once = PTHREAD_ONCE_INIT;
static struct _launch_client {
char *where = getenv(LAUNCHD_SOCKET_ENV);
char *_launchd_fd = getenv(LAUNCHD_TRUSTED_FD_ENV);
int dfd, lfd = -1;
+ name_t spath;
_lc = calloc(1, sizeof(struct _launch_client));
if (where && where[0] != '\0') {
strncpy(sun.sun_path, where, sizeof(sun.sun_path));
- } else if (getuid() == 0) {
- strncpy(sun.sun_path, LAUNCHD_SOCK_PREFIX "/sock", sizeof(sun.sun_path));
+ } else if (!getenv("SUDO_COMMAND") && _vprocmgr_getsocket(spath) == 0) {
+ size_t min_len;
+
+ min_len = sizeof(sun.sun_path) < sizeof(spath) ? sizeof(sun.sun_path) : sizeof(spath);
+
+ strncpy(sun.sun_path, spath, min_len);
} else {
- goto out_bad;
+ strncpy(sun.sun_path, LAUNCHD_SOCK_PREFIX "/sock", sizeof(sun.sun_path));
}
if ((lfd = _fd(socket(AF_UNIX, SOCK_STREAM, 0))) == -1)
return;
out_bad:
if (_lc->l)
- launchd_close(_lc->l);
+ launchd_close(_lc->l, close);
else if (lfd != -1)
close(lfd);
if (_lc)
launch_data_array_set_index(launch_data_t where, launch_data_t what, size_t ind)
{
if ((ind + 1) >= where->_array_cnt) {
- where->_array = realloc(where->_array, (ind + 1) * sizeof(launch_data_t));
+ where->_array = reallocf(where->_array, (ind + 1) * sizeof(launch_data_t));
memset(where->_array + where->_array_cnt, 0, (ind + 1 - where->_array_cnt) * sizeof(launch_data_t));
where->_array_cnt = ind + 1;
}
launch_data_array_pop_first(launch_data_t where)
{
launch_data_t r = NULL;
-
+
if (where->_array_cnt > 0) {
r = where->_array[0];
memmove(where->_array, where->_array + 1, (where->_array_cnt - 1) * sizeof(launch_data_t));
launch_t
launchd_fdopen(int fd)
{
- launch_t c;
+ launch_t c;
- c = calloc(1, sizeof(struct _launch));
+ c = calloc(1, sizeof(struct _launch));
if (!c)
return NULL;
- c->fd = fd;
+ c->fd = fd;
fcntl(fd, F_SETFL, O_NONBLOCK);
- if ((c->sendbuf = malloc(0)) == NULL)
+ if ((c->sendbuf = malloc(0)) == NULL)
goto out_bad;
- if ((c->sendfds = malloc(0)) == NULL)
+ if ((c->sendfds = malloc(0)) == NULL)
goto out_bad;
- if ((c->recvbuf = malloc(0)) == NULL)
+ if ((c->recvbuf = malloc(0)) == NULL)
goto out_bad;
- if ((c->recvfds = malloc(0)) == NULL)
+ if ((c->recvfds = malloc(0)) == NULL)
goto out_bad;
return c;
}
void
-launchd_close(launch_t lh)
+launchd_close(launch_t lh, typeof(close) closefunc)
{
+ if (in_flight_msg_recv_client == lh) {
+ in_flight_msg_recv_client = NULL;
+ }
+
if (lh->sendbuf)
free(lh->sendbuf);
if (lh->sendfds)
free(lh->recvbuf);
if (lh->recvfds)
free(lh->recvfds);
- close(lh->fd);
+ closefunc(lh->fd);
free(lh);
}
-void
-make_msg_and_cmsg(launch_data_t d, void **where, size_t *len, int **fd_where, size_t *fdcnt)
+#define ROUND_TO_64BIT_WORD_SIZE(x) ((x + 7) & ~7)
+
+size_t
+launch_data_pack(launch_data_t d, void *where, size_t len, int *fd_where, size_t *fd_cnt)
{
- launch_data_t o_in_w;
- size_t i;
+ launch_data_t o_in_w = where;
+ size_t i, rsz, total_data_len = sizeof(struct _launch_data);
- *where = realloc(*where, *len + sizeof(struct _launch_data));
+ if (total_data_len > len) {
+ return 0;
+ }
- o_in_w = *where + *len;
- memset(o_in_w, 0, sizeof(struct _launch_data));
- *len += sizeof(struct _launch_data);
+ where += total_data_len;
o_in_w->type = host2big(d->type);
break;
case LAUNCH_DATA_FD:
o_in_w->fd = host2big(d->fd);
- if (d->fd != -1) {
- *fd_where = realloc(*fd_where, (*fdcnt + 1) * sizeof(int));
- (*fd_where)[*fdcnt] = d->fd;
- (*fdcnt)++;
+ if (fd_where && d->fd != -1) {
+ fd_where[*fd_cnt] = d->fd;
+ (*fd_cnt)++;
}
break;
case LAUNCH_DATA_STRING:
o_in_w->string_len = host2big(d->string_len);
- *where = realloc(*where, *len + strlen(d->string) + 1);
- memcpy(*where + *len, d->string, strlen(d->string) + 1);
- *len += strlen(d->string) + 1;
+ total_data_len += ROUND_TO_64BIT_WORD_SIZE(strlen(d->string) + 1);
+ if (total_data_len > len) {
+ return 0;
+ }
+ memcpy(where, d->string, strlen(d->string) + 1);
break;
case LAUNCH_DATA_OPAQUE:
o_in_w->opaque_size = host2big(d->opaque_size);
- *where = realloc(*where, *len + d->opaque_size);
- memcpy(*where + *len, d->opaque, d->opaque_size);
- *len += d->opaque_size;
+ total_data_len += ROUND_TO_64BIT_WORD_SIZE(d->opaque_size);
+ if (total_data_len > len) {
+ return 0;
+ }
+ memcpy(where, d->opaque, d->opaque_size);
break;
case LAUNCH_DATA_DICTIONARY:
case LAUNCH_DATA_ARRAY:
o_in_w->_array_cnt = host2big(d->_array_cnt);
- *where = realloc(*where, *len + (d->_array_cnt * sizeof(launch_data_t)));
- memcpy(*where + *len, d->_array, d->_array_cnt * sizeof(launch_data_t));
- *len += d->_array_cnt * sizeof(launch_data_t);
+ total_data_len += d->_array_cnt * sizeof(uint64_t);
+ if (total_data_len > len) {
+ return 0;
+ }
- for (i = 0; i < d->_array_cnt; i++)
- make_msg_and_cmsg(d->_array[i], where, len, fd_where, fdcnt);
+ where += d->_array_cnt * sizeof(uint64_t);
+
+ for (i = 0; i < d->_array_cnt; i++) {
+ rsz = launch_data_pack(d->_array[i], where, len - total_data_len, fd_where, fd_cnt);
+ if (rsz == 0) {
+ return 0;
+ }
+ where += rsz;
+ total_data_len += rsz;
+ }
break;
default:
break;
}
+
+ return total_data_len;
}
-static launch_data_t make_data(launch_t conn, size_t *data_offset, size_t *fdoffset)
+launch_data_t
+launch_data_unpack(void *data, size_t data_size, int *fds, size_t fd_cnt, size_t *data_offset, size_t *fdoffset)
{
- launch_data_t r = conn->recvbuf + *data_offset;
+ launch_data_t r = data + *data_offset;
size_t i, tmpcnt;
- if ((conn->recvlen - *data_offset) < sizeof(struct _launch_data))
+ if ((data_size - *data_offset) < sizeof(struct _launch_data))
return NULL;
*data_offset += sizeof(struct _launch_data);
case LAUNCH_DATA_DICTIONARY:
case LAUNCH_DATA_ARRAY:
tmpcnt = big2host(r->_array_cnt);
- if ((conn->recvlen - *data_offset) < (tmpcnt * sizeof(launch_data_t))) {
+ if ((data_size - *data_offset) < (tmpcnt * sizeof(uint64_t))) {
errno = EAGAIN;
return NULL;
}
- r->_array = conn->recvbuf + *data_offset;
- *data_offset += tmpcnt * sizeof(launch_data_t);
+ r->_array = data + *data_offset;
+ *data_offset += tmpcnt * sizeof(uint64_t);
for (i = 0; i < tmpcnt; i++) {
- r->_array[i] = make_data(conn, data_offset, fdoffset);
+ r->_array[i] = launch_data_unpack(data, data_size, fds, fd_cnt, data_offset, fdoffset);
if (r->_array[i] == NULL)
return NULL;
}
break;
case LAUNCH_DATA_STRING:
tmpcnt = big2host(r->string_len);
- if ((conn->recvlen - *data_offset) < (tmpcnt + 1)) {
+ if ((data_size - *data_offset) < (tmpcnt + 1)) {
errno = EAGAIN;
return NULL;
}
- r->string = conn->recvbuf + *data_offset;
+ r->string = data + *data_offset;
r->string_len = tmpcnt;
- *data_offset += tmpcnt + 1;
+ *data_offset += ROUND_TO_64BIT_WORD_SIZE(tmpcnt + 1);
break;
case LAUNCH_DATA_OPAQUE:
tmpcnt = big2host(r->opaque_size);
- if ((conn->recvlen - *data_offset) < tmpcnt) {
+ if ((data_size - *data_offset) < tmpcnt) {
errno = EAGAIN;
return NULL;
}
- r->opaque = conn->recvbuf + *data_offset;
+ r->opaque = data + *data_offset;
r->opaque_size = tmpcnt;
- *data_offset += tmpcnt;
+ *data_offset += ROUND_TO_64BIT_WORD_SIZE(tmpcnt);
break;
case LAUNCH_DATA_FD:
- if (r->fd != -1) {
- r->fd = _fd(conn->recvfds[*fdoffset]);
+ if (r->fd != -1 && fd_cnt > *fdoffset) {
+ r->fd = _fd(fds[*fdoffset]);
*fdoffset += 1;
}
break;
memset(&mh, 0, sizeof(mh));
+ /* confirm that the next hack works */
+ assert((d && lh->sendlen == 0) || (!d && lh->sendlen));
+
if (d) {
- uint64_t msglen = lh->sendlen;
+ size_t fd_slots_used = 0;
+ size_t good_enough_size = 10 * 1024 * 1024;
+ uint64_t msglen;
+
+ /* hack, see the above assert to verify "correctness" */
+ free(lh->sendbuf);
+ lh->sendbuf = malloc(good_enough_size);
+ free(lh->sendfds);
+ lh->sendfds = malloc(4 * 1024);
+
+ lh->sendlen = launch_data_pack(d, lh->sendbuf, good_enough_size, lh->sendfds, &fd_slots_used);
+
+ if (lh->sendlen == 0) {
+ errno = ENOMEM;
+ return -1;
+ }
- make_msg_and_cmsg(d, &lh->sendbuf, &lh->sendlen, &lh->sendfds, &lh->sendfdcnt);
+ lh->sendfdcnt = fd_slots_used;
- msglen = (lh->sendlen - msglen) + sizeof(struct launch_msg_header);
+ msglen = lh->sendlen + sizeof(struct launch_msg_header); /* type promotion to make the host2big() macro work right */
lmh.len = host2big(msglen);
lmh.magic = host2big(LAUNCH_MSG_HEADER_MAGIC);
iov[0].iov_base = &lmh;
iov[0].iov_len = sizeof(lmh);
mh.msg_iov = iov;
- mh.msg_iovlen = 2;
+ mh.msg_iovlen = 2;
} else {
mh.msg_iov = iov + 1;
- mh.msg_iovlen = 1;
+ mh.msg_iovlen = 1;
}
iov[1].iov_base = lh->sendbuf;
{
launch_data_t resp = NULL;
+ if (d && (launch_data_get_type(d) == LAUNCH_DATA_STRING)
+ && (strcmp(launch_data_get_string(d), LAUNCH_KEY_GETJOBS) == 0)
+ && vproc_swap_complex(NULL, VPROC_GSK_ALLJOBS, NULL, &resp) == NULL) {
+ return resp;
+ }
+
pthread_once(&_lc_once, launch_client_init);
if (!_lc) {
goto out;
} while (launchd_msg_send(_lc->l, NULL) == -1);
}
-
+
while (resp == NULL) {
if (d == NULL && launch_data_array_get_count(_lc->async_resp) > 0) {
resp = launch_data_array_pop_first(_lc->async_resp);
struct cmsghdr *cm = alloca(4096);
launch_data_t rmsg = NULL;
size_t data_offset, fd_offset;
- struct msghdr mh;
- struct iovec iov;
+ struct msghdr mh;
+ struct iovec iov;
int r;
- memset(&mh, 0, sizeof(mh));
- mh.msg_iov = &iov;
- mh.msg_iovlen = 1;
+ memset(&mh, 0, sizeof(mh));
+ mh.msg_iov = &iov;
+ mh.msg_iovlen = 1;
- lh->recvbuf = realloc(lh->recvbuf, lh->recvlen + 8*1024);
+ lh->recvbuf = reallocf(lh->recvbuf, lh->recvlen + 8*1024);
iov.iov_base = lh->recvbuf + lh->recvlen;
iov.iov_len = 8*1024;
}
lh->recvlen += r;
if (mh.msg_controllen > 0) {
- lh->recvfds = realloc(lh->recvfds, lh->recvfdcnt * sizeof(int) + mh.msg_controllen - sizeof(struct cmsghdr));
+ lh->recvfds = reallocf(lh->recvfds, lh->recvfdcnt * sizeof(int) + mh.msg_controllen - sizeof(struct cmsghdr));
memcpy(lh->recvfds + lh->recvfdcnt, CMSG_DATA(cm), mh.msg_controllen - sizeof(struct cmsghdr));
lh->recvfdcnt += (mh.msg_controllen - sizeof(struct cmsghdr)) / sizeof(int);
}
goto need_more_data;
}
- if ((rmsg = make_data(lh, &data_offset, &fd_offset)) == NULL) {
+ if ((rmsg = launch_data_unpack(lh->recvbuf, lh->recvlen, lh->recvfds, lh->recvfdcnt, &data_offset, &fd_offset)) == NULL) {
errno = EBADRPC;
goto out_bad;
}
+ in_flight_msg_recv_client = lh;
+
cb(rmsg, context);
+ /* launchd and only launchd can call launchd_close() as a part of the callback */
+ if (in_flight_msg_recv_client == NULL) {
+ r = 0;
+ break;
+ }
+
lh->recvlen -= data_offset;
if (lh->recvlen > 0) {
memmove(lh->recvbuf, lh->recvbuf + data_offset, lh->recvlen);
return r;
}
-void launchd_batch_enable(bool val)
+void
+launchd_batch_enable(bool b)
{
- launch_data_t resp, tmp, msg;
-
- tmp = launch_data_alloc(LAUNCH_DATA_BOOL);
- launch_data_set_bool(tmp, val);
-
- msg = launch_data_alloc(LAUNCH_DATA_DICTIONARY);
- launch_data_dict_insert(msg, tmp, LAUNCH_KEY_BATCHCONTROL);
-
- resp = launch_msg(msg);
+ int64_t val = b;
- launch_data_free(msg);
-
- if (resp)
- launch_data_free(resp);
+ vproc_swap_integer(NULL, VPROC_GSK_GLOBAL_ON_DEMAND, &val, NULL);
}
-bool launchd_batch_query(void)
+bool
+launchd_batch_query(void)
{
- launch_data_t resp, msg = launch_data_alloc(LAUNCH_DATA_STRING);
- bool rval = true;
-
- launch_data_set_string(msg, LAUNCH_KEY_BATCHQUERY);
-
- resp = launch_msg(msg);
-
- launch_data_free(msg);
+ int64_t val;
- if (resp) {
- if (launch_data_get_type(resp) == LAUNCH_DATA_BOOL)
- rval = launch_data_get_bool(resp);
- launch_data_free(resp);
+ if (vproc_swap_integer(NULL, VPROC_GSK_GLOBAL_ON_DEMAND, NULL, &val) == NULL) {
+ return (bool)val;
}
- return rval;
+
+ return false;
}
static int _fd(int fd)
launch_data_t r = launch_data_alloc(LAUNCH_DATA_ERRNO);
if (r)
- launch_data_set_errno(r, e);
+ launch_data_set_errno(r, e);
return r;
}
launch_data_t r = launch_data_alloc(LAUNCH_DATA_FD);
if (r)
- launch_data_set_fd(r, fd);
+ launch_data_set_fd(r, fd);
return r;
}
launch_data_t r = launch_data_alloc(LAUNCH_DATA_MACHPORT);
if (r)
- launch_data_set_machport(r, p);
+ launch_data_set_machport(r, p);
return r;
}
return r;
}
-static pid_t
-fexecv_as_user(const char *login, uid_t u, gid_t g, char *const argv[])
+void
+load_launchd_jobs_at_loginwindow_prompt(int flags __attribute__((unused)), ...)
{
- int i, dtsz;
- pid_t p;
-
- if ((p = fork()) != 0)
- return p;
-
- chdir("/");
-
- seteuid(0);
- setegid(0);
- initgroups(login, g);
- setgid(g);
- setuid(u);
-
- dtsz = getdtablesize();
-
- for (i = STDERR_FILENO + 1; i < dtsz; i++)
- close(i);
-
- execv(argv[0], argv);
- _exit(EXIT_FAILURE);
+ _vprocmgr_init("LoginWindow");
}
pid_t
-create_and_switch_to_per_session_launchd(const char *login, int flags, ...)
+create_and_switch_to_per_session_launchd(const char *login __attribute__((unused)), int flags __attribute__((unused)), ...)
{
- static char *const ldargv[] = { "/sbin/launchd", "-S", "Aqua", NULL };
- char *largv[] = { "/bin/launchctl", "load", "-S", "Aqua", "-D", "all", "/etc/mach_init_per_user.d", NULL };
mach_port_t bezel_ui_server;
- struct passwd *pwe;
struct stat sb;
- int wstatus;
- name_t sp;
- pid_t p, ldp;
- uid_t u;
- gid_t g;
-
- if ((pwe = getpwnam(login)) == NULL)
- return -1;
-
- u = pwe->pw_uid;
- g = pwe->pw_gid;
-
- if ((ldp = fexecv_as_user(login, u, g, ldargv)) == -1)
- return -1;
-
- while (bootstrap_getsocket(bootstrap_port, sp) != BOOTSTRAP_SUCCESS)
- usleep(20000);
-
- setenv(LAUNCHD_SOCKET_ENV, sp, 1);
+ uid_t target_user = geteuid() ? geteuid() : getuid();
- if (flags & LOAD_ONLY_SAFEMODE_LAUNCHAGENTS)
- largv[5] = "system";
-
- if ((p = fexecv_as_user(login, u, g, largv)) == -1)
- return -1;
-
- if (waitpid(p, &wstatus, 0) != p)
- return -1;
-
- if (!(WIFEXITED(wstatus) && WEXITSTATUS(wstatus) == 0))
+ if (_vprocmgr_move_subset_to_user(target_user, "Aqua")) {
return -1;
+ }
#define BEZEL_UI_PATH "/System/Library/LoginPlugins/BezelServices.loginPlugin/Contents/Resources/BezelUI/BezelUIServer"
#define BEZEL_UI_PLIST "/System/Library/LaunchAgents/com.apple.BezelUIServer.plist"
#define BEZEL_UI_SERVICE "BezelUI"
if (!(stat(BEZEL_UI_PLIST, &sb) == 0 && S_ISREG(sb.st_mode))) {
- if (bootstrap_create_server(bootstrap_port, BEZEL_UI_PATH, u, true, &bezel_ui_server) == BOOTSTRAP_SUCCESS) {
+ if (bootstrap_create_server(bootstrap_port, BEZEL_UI_PATH, target_user, true, &bezel_ui_server) == BOOTSTRAP_SUCCESS) {
mach_port_t srv;
if (bootstrap_create_service(bezel_ui_server, BEZEL_UI_SERVICE, &srv) == BOOTSTRAP_SUCCESS) {
}
}
- return ldp;
+ return 1;
}
projects / apple / launchd.git / blobdiff