The socket created by systemd, waits for connections. Once it accepts a connection, it starts the service which handles the request for a dump.
>From this service, we fetch the socket ID and perform the dump. This is not functional yet, due to the absence of the sd-daemon.h header file. For this we need to have the correct version of systemd which has this socket option enabled. Signed-off-by: Janani Venkataraman <[email protected]> --- src/coredump.c | 32 ++++++++++++++++++++++++++++++++ 1 file changed, 32 insertions(+) diff --git a/src/coredump.c b/src/coredump.c index ab120b9..98a7146 100755 --- a/src/coredump.c +++ b/src/coredump.c @@ -39,6 +39,9 @@ #include <sys/types.h> #include <sys/stat.h> #include <coredump.h> +#if HAVE_SYSTEMD_SOCKET_SUPPORT +#include <sd-daemon.h> +#endif /* Main Socket */ int socket_fd; @@ -670,6 +673,35 @@ cleanup: /* Systemd socket for self dump */ int socket_dump(void) { + int n, ret; + char core_file[CORE_FILE_NAME_SZ]; + struct ucred client_info; + + /* Fetching the Socket ID from systemd */ + n = sd_listen_fds(0); + if (n > 1) { + gencore_log("Too many file descriptors received.\n"); + return -1; + } else if (n == 1) + new_sock = SD_LISTEN_FDS_START + 0; + else + return -1; + + /* Receive the message */ + ret = receive_core_filename(core_file); + if (ret) + return -1; + + /* Fetch client PID */ + ret = get_client_pid(&client_info); + if (ret) + return -1; + + /* Dump process */ + ret = dump_task(&client_info, core_file); + if (ret) + return -1; + return 0; } #endif -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to [email protected] More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
