#include <fcntl.h>
#include <unistd.h>
#include <errno.h>
+#include <fnmatch.h>
#include <sys/poll.h>
#include <sys/types.h>
+#include <sys/wait.h>
#include <sys/time.h>
#include <netinet/in.h>
#include <arpa/inet.h>
/* from process.c */
extern void start_signal_handling(void);
+void afterfork(void);
+/* Must be called before exec in every child made after
+ start_signal_handling. Safe to call in earlier children too. */
+
+void childpersist_closefd_hook(void *fd_p, uint32_t newphase);
+/* Convenience hook function for use with add_hook PHASE_CHILDPERSIST.
+ With `int fd' in your state struct, pass fd_p=&fd. The hook checks
+ whether fd>=0, so you can use it for an fd which is only sometimes
+ open. This function will set fd to -1, so it is idempotent. */
+
/***** CONFIGURATION support *****/
extern bool_t just_check_config; /* If True then we're going to exit after
const char *message);
void setcloexec(int fd); /* cannot fail */
+void setnonblock(int fd); /* cannot fail */
void pipe_cloexec(int fd[2]); /* pipe(), setcloexec() twice; cannot fail */
extern int sys_cmd(const char *file, const char *argc, ...);
PHASE_DROPPRIV, /* Last chance for privileged operations */
PHASE_RUN,
PHASE_SHUTDOWN, /* About to die; delete key material, etc. */
+ PHASE_CHILDPERSIST, /* Forked long-term child: close fds, etc. */
/* Keep this last: */
NR_PHASES,
};
+/* Each module should, in its CHILDPERSIST hooks, close all fds which
+ constitute ownership of important operating system resources, or
+ which are used for IPC with other processes who want to get the
+ usual disconnection effects if the main secnet process dies.
+ CHILDPERSIST hooks are not run if the child is going to exec;
+ so fds such as described above should be CLOEXEC too. */
+
typedef void hook_fn(void *self, uint32_t newphase);
bool_t add_hook(uint32_t phase, hook_fn *f, void *state);
bool_t remove_hook(uint32_t phase, hook_fn *f, void *state);
extern uint32_t current_phase;
extern void enter_phase(uint32_t new_phase);
+void phase_hooks_init(void); /* for main() only */
+void clear_phase_hooks(uint32_t phase); /* for afterfork() */
+
/* Some features (like netlink 'soft' routes) require that secnet
retain root privileges. They should indicate that here when
appropriate. */
extern bool_t require_root_privileges;
extern cstring_t require_root_privileges_explanation;
+/* Some modules may want to know whether secnet is going to drop
+ privilege, so that they know whether to do privsep. Call only
+ in phases SETUP and later. */
+bool_t will_droppriv(void);
+
/***** END of program lifetime support *****/
/***** MODULE support *****/
extern init_module resolver_module;
extern init_module random_module;
extern init_module udp_module;
+extern init_module polypath_module;
extern init_module util_module;
extern init_module site_module;
extern init_module transform_eax_module;
void lg_perror(struct log_if *lg, const char *desc, struct cloc *loc,
int class, int errnoval, const char *fmt, ...)
FORMAT(printf,6,7);
+void lg_exitstatus(struct log_if *lg, const char *desc, struct cloc *loc,
+ int class, int status, const char *progname);
/* The cfgfatal() family of functions require messages that end in '\n' */
extern NORETURN(cfgfatal(struct cloc loc, cstring_t facility,