diff --git a/ChangeLog b/ChangeLog index 5f86b6a..11a1e9d 100644 --- a/ChangeLog +++ b/ChangeLog @@ -5,6 +5,12 @@ vNEXT: first incoming packet. (Ondrej Kuzník) + Libcap support: Keep only CAP_NET_ADMIN if started + as root with transparent proxying and dropping + priviledges (enable USELIBCAP in Makefile). This + avoids having to mess with filesystem capabilities. + (Sebastian Schmidt/yath) + Fixed bugs related to getpeername that would cause sslh to quit erroneously (getpeername can return actual errors if connections are dropped before diff --git a/common.c b/common.c index fefc33e..72c351a 100644 --- a/common.c +++ b/common.c @@ -37,11 +37,6 @@ struct addrinfo *addr_listen = NULL; /* what addresses do we listen to? */ int allow_severity =0, deny_severity = 0; #endif -#ifdef LIBCAP -#include -#include -#endif - /* check result and die, printing the offending address and error */ void check_res_dumpdie(int res, struct addrinfo *addr, char* syscall) { diff --git a/common.h b/common.h index 3d09d71..db0ccc5 100644 --- a/common.h +++ b/common.h @@ -27,6 +27,12 @@ #include #include #include + +#ifdef LIBCAP +#include +#include +#endif + #include "version.h" #define CHECK_RES_DIE(res, str) \ diff --git a/sslh-main.c b/sslh-main.c index 2a6ad9c..907969f 100644 --- a/sslh-main.c +++ b/sslh-main.c @@ -91,6 +91,23 @@ static void print_usage(void) fprintf(stderr, USAGE_STRING, prots); } +static void printcaps(void) { +#ifdef LIBCAP + cap_t caps; + char* desc; + ssize_t len; + + caps = cap_get_proc(); + + desc = cap_to_text(caps, &len); + + fprintf(stderr, "capabilities: %s\n", desc); + + cap_free(caps); + cap_free(desc); +#endif +} + static void printsettings(void) { char buf[NI_MAXHOST]; @@ -508,9 +525,13 @@ int main(int argc, char *argv[]) if (user_name) drop_privileges(user_name); + /* Open syslog connection */ setup_syslog(argv[0]); + if (verbose) + printcaps(); + main_loop(listen_sockets, num_addr_listen); return 0;