diff options
-rw-r--r-- | src/basic/terminal-util.c | 80 | ||||
-rw-r--r-- | src/basic/terminal-util.h | 3 | ||||
-rw-r--r-- | src/basic/util.c | 80 | ||||
-rw-r--r-- | src/basic/util.h | 4 | ||||
-rw-r--r-- | src/machine/machine-dbus.h | 2 | ||||
-rw-r--r-- | src/machine/machine.c | 17 | ||||
-rw-r--r-- | src/run/run.c | 1 |
7 files changed, 95 insertions, 92 deletions
diff --git a/src/basic/terminal-util.c b/src/basic/terminal-util.c index 22ee6ad83f..50a86a331c 100644 --- a/src/basic/terminal-util.c +++ b/src/basic/terminal-util.c @@ -1054,6 +1054,33 @@ int get_ctty(pid_t pid, dev_t *_devnr, char **r) { return 0; } +int ptsname_malloc(int fd, char **ret) { + size_t l = 100; + + assert(fd >= 0); + assert(ret); + + for (;;) { + char *c; + + c = new(char, l); + if (!c) + return -ENOMEM; + + if (ptsname_r(fd, c, l) == 0) { + *ret = c; + return 0; + } + if (errno != ERANGE) { + free(c); + return -errno; + } + + free(c); + l *= 2; + } +} + int ptsname_namespace(int pty, char **ret) { int no = -1, r; @@ -1072,3 +1099,56 @@ int ptsname_namespace(int pty, char **ret) { return 0; } + +int openpt_in_namespace(pid_t pid, int flags) { + _cleanup_close_ int pidnsfd = -1, mntnsfd = -1, usernsfd = -1, rootfd = -1; + _cleanup_close_pair_ int pair[2] = { -1, -1 }; + siginfo_t si; + pid_t child; + int r; + + assert(pid > 0); + + r = namespace_open(pid, &pidnsfd, &mntnsfd, NULL, &usernsfd, &rootfd); + if (r < 0) + return r; + + if (socketpair(AF_UNIX, SOCK_DGRAM, 0, pair) < 0) + return -errno; + + child = fork(); + if (child < 0) + return -errno; + + if (child == 0) { + int master; + + pair[0] = safe_close(pair[0]); + + r = namespace_enter(pidnsfd, mntnsfd, -1, usernsfd, rootfd); + if (r < 0) + _exit(EXIT_FAILURE); + + master = posix_openpt(flags|O_NOCTTY|O_CLOEXEC); + if (master < 0) + _exit(EXIT_FAILURE); + + if (unlockpt(master) < 0) + _exit(EXIT_FAILURE); + + if (send_one_fd(pair[1], master, 0) < 0) + _exit(EXIT_FAILURE); + + _exit(EXIT_SUCCESS); + } + + pair[1] = safe_close(pair[1]); + + r = wait_for_terminate(child, &si); + if (r < 0) + return r; + if (si.si_code != CLD_EXITED || si.si_status != EXIT_SUCCESS) + return -EIO; + + return receive_one_fd(pair[0], 0); +} diff --git a/src/basic/terminal-util.h b/src/basic/terminal-util.h index da2a5b8897..050d0524a5 100644 --- a/src/basic/terminal-util.h +++ b/src/basic/terminal-util.h @@ -120,4 +120,7 @@ int get_ctty(pid_t, dev_t *_devnr, char **r); int getttyname_malloc(int fd, char **r); int getttyname_harder(int fd, char **r); +int ptsname_malloc(int fd, char **ret); int ptsname_namespace(int pty, char **ret); + +int openpt_in_namespace(pid_t pid, int flags); diff --git a/src/basic/util.c b/src/basic/util.c index f845e2dabb..ca5e4befa0 100644 --- a/src/basic/util.c +++ b/src/basic/util.c @@ -6087,86 +6087,6 @@ int free_and_strdup(char **p, const char *s) { return 1; } -int ptsname_malloc(int fd, char **ret) { - size_t l = 100; - - assert(fd >= 0); - assert(ret); - - for (;;) { - char *c; - - c = new(char, l); - if (!c) - return -ENOMEM; - - if (ptsname_r(fd, c, l) == 0) { - *ret = c; - return 0; - } - if (errno != ERANGE) { - free(c); - return -errno; - } - - free(c); - l *= 2; - } -} - -int openpt_in_namespace(pid_t pid, int flags) { - _cleanup_close_ int pidnsfd = -1, mntnsfd = -1, usernsfd = -1, rootfd = -1; - _cleanup_close_pair_ int pair[2] = { -1, -1 }; - siginfo_t si; - pid_t child; - int r; - - assert(pid > 0); - - r = namespace_open(pid, &pidnsfd, &mntnsfd, NULL, &usernsfd, &rootfd); - if (r < 0) - return r; - - if (socketpair(AF_UNIX, SOCK_DGRAM, 0, pair) < 0) - return -errno; - - child = fork(); - if (child < 0) - return -errno; - - if (child == 0) { - int master; - - pair[0] = safe_close(pair[0]); - - r = namespace_enter(pidnsfd, mntnsfd, -1, usernsfd, rootfd); - if (r < 0) - _exit(EXIT_FAILURE); - - master = posix_openpt(flags|O_NOCTTY|O_CLOEXEC); - if (master < 0) - _exit(EXIT_FAILURE); - - if (unlockpt(master) < 0) - _exit(EXIT_FAILURE); - - if (send_one_fd(pair[1], master, 0) < 0) - _exit(EXIT_FAILURE); - - _exit(EXIT_SUCCESS); - } - - pair[1] = safe_close(pair[1]); - - r = wait_for_terminate(child, &si); - if (r < 0) - return r; - if (si.si_code != CLD_EXITED || si.si_status != EXIT_SUCCESS) - return -EIO; - - return receive_one_fd(pair[0], 0); -} - ssize_t fgetxattrat_fake(int dirfd, const char *filename, const char *attribute, void *value, size_t size, int flags) { char fn[strlen("/proc/self/fd/") + DECIMAL_STR_MAX(int) + 1]; _cleanup_close_ int fd = -1; diff --git a/src/basic/util.h b/src/basic/util.h index 034410b8a8..79c7ad1b39 100644 --- a/src/basic/util.h +++ b/src/basic/util.h @@ -891,10 +891,6 @@ union inotify_event_buffer { #define laccess(path, mode) faccessat(AT_FDCWD, (path), (mode), AT_SYMLINK_NOFOLLOW) -int ptsname_malloc(int fd, char **ret); - -int openpt_in_namespace(pid_t pid, int flags); - ssize_t fgetxattrat_fake(int dirfd, const char *filename, const char *attribute, void *value, size_t size, int flags); int fd_setcrtime(int fd, usec_t usec); diff --git a/src/machine/machine-dbus.h b/src/machine/machine-dbus.h index 38b46ad936..194e680e05 100644 --- a/src/machine/machine-dbus.h +++ b/src/machine/machine-dbus.h @@ -23,6 +23,8 @@ #include "sd-bus.h" +#include "machine.h" + extern const sd_bus_vtable machine_vtable[]; char *machine_bus_path(Machine *s); diff --git a/src/machine/machine.c b/src/machine/machine.c index b52ecd015c..0f1942d1f4 100644 --- a/src/machine/machine.c +++ b/src/machine/machine.c @@ -19,23 +19,24 @@ along with systemd; If not, see <http://www.gnu.org/licenses/>. ***/ +#include <errno.h> #include <string.h> #include <unistd.h> -#include <errno.h> #include "sd-messages.h" -#include "util.h" -#include "mkdir.h" -#include "hashmap.h" +#include "bus-error.h" +#include "bus-util.h" #include "fileio.h" +#include "formats-util.h" +#include "hashmap.h" +#include "mkdir.h" #include "special.h" +#include "terminal-util.h" #include "unit-name.h" -#include "bus-util.h" -#include "bus-error.h" -#include "machine.h" +#include "util.h" #include "machine-dbus.h" -#include "formats-util.h" +#include "machine.h" Machine* machine_new(Manager *manager, MachineClass class, const char *name) { Machine *m; diff --git a/src/run/run.c b/src/run/run.c index bb18dd4383..1f89bfd6fb 100644 --- a/src/run/run.c +++ b/src/run/run.c @@ -36,6 +36,7 @@ #include "signal-util.h" #include "spawn-polkit-agent.h" #include "strv.h" +#include "terminal-util.h" #include "unit-name.h" static bool arg_ask_password = true; |