Now we have the PID and the absolute or relative path of the core. We now call the do_coredump function with the appropriate parameters.
Signed-off-by: Janani Venkataraman <[email protected]> --- src/coredump.c | 60 ++++++++++++++++++++++++++++++++++++++++++++++++++++++++ 1 file changed, 60 insertions(+) diff --git a/src/coredump.c b/src/coredump.c index 599a912..72ba8d8 100755 --- a/src/coredump.c +++ b/src/coredump.c @@ -446,6 +446,61 @@ int get_client_pid(struct ucred *client_info) return 0; } +/* Dumps the client process */ +int dump_task(struct ucred *client_info, char *core_file) +{ + + char filename[40], cwd[CORE_FILE_NAME_SZ], corefile[CORE_FILE_NAME_SZ]; + memset(filename, 0, 40); + memset(cwd, 0, CORE_FILE_NAME_SZ); + memset(corefile, 0, CORE_FILE_NAME_SZ); + + if (setgid(client_info->gid)) { + send_reply(errno); + gencore_log("[%d]: Could not change GID:%s\n", + pid_log, strerror(errno)); + return -1; + } + + if (setuid(client_info->uid)) { + send_reply(errno); + gencore_log("[%d]: Could not change UID:%s\n", + pid_log, strerror(errno)); + return -1; + } + + /* Checking if UID was changed */ + if (geteuid() != client_info->uid) { + send_reply(errno); + gencore_log("[%d]: Could not change UID:%s\n", + pid_log, strerror(errno)); + return -1; + } + + /* Converting the path to absolute path */ + if (core_file[0] != '/') { + snprintf(filename, 40, "/proc/%d/cwd", client_info->pid); + readlink(filename, cwd, CORE_FILE_NAME_SZ); + snprintf(corefile, CORE_FILE_NAME_SZ, "%s/%s", cwd, core_file); + } else + strcpy(corefile, core_file); + + if (do_coredump(client_info->pid, (char *)corefile)) { + send_reply(errno); + gencore_log("[%d]: Could not create core file %s.\n", + pid_log, corefile); + fflush(fp_log); + return -1; + } + + gencore_log("[%d]: Core file %s created.\n", pid_log, + corefile); + + send_reply(0); + + return 0; +} + /* Services requests */ int service_request(void) { @@ -463,6 +518,11 @@ int service_request(void) if (ret) goto cleanup; + /* Dump process */ + ret = dump_task(&client_info, core_file); + if (ret) + goto cleanup; + cleanup: close(new_sock); if (ret == -1) -- 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/
