Hi, After all files are opened ripd(8) can have the fs access disabled just before each process main loop. Its 2 childs already run under chroot, but since they are still not pledged at least they have no way to read/write/create files within the chroot. No loads or reloads of the config file happen through any signal, nor can we do it via ripctl(8).
I was able to run a simple daemon with the example file. Comments? OK? Index: rde.c =================================================================== RCS file: /cvs/src/usr.sbin/ripd/rde.c,v retrieving revision 1.21 diff -u -p -u -r1.21 rde.c --- rde.c 3 Sep 2016 10:28:08 -0000 1.21 +++ rde.c 30 Oct 2018 15:09:44 -0000 @@ -151,6 +151,11 @@ rde(struct ripd_conf *xconf, int pipe_pa free(r); } + if (unveil("/", "") == -1) + fatal("unveil"); + if (unveil(NULL, NULL) == -1) + fatal("unveil"); + event_dispatch(); rde_shutdown(); Index: ripd.c =================================================================== RCS file: /cvs/src/usr.sbin/ripd/ripd.c,v retrieving revision 1.30 diff -u -p -u -r1.30 ripd.c --- ripd.c 3 Sep 2016 10:28:08 -0000 1.30 +++ ripd.c 30 Oct 2018 15:09:44 -0000 @@ -251,6 +251,11 @@ main(int argc, char *argv[]) conf->rdomain) == -1) fatalx("kr_init failed"); + if (unveil("/", "") == -1) + fatal("unveil"); + if (unveil(NULL, NULL) == -1) + fatal("unveil"); + event_dispatch(); ripd_shutdown(); Index: ripe.c =================================================================== RCS file: /cvs/src/usr.sbin/ripd/ripe.c,v retrieving revision 1.22 diff -u -p -u -r1.22 ripe.c --- ripe.c 3 Sep 2016 10:28:08 -0000 1.22 +++ ripe.c 30 Oct 2018 15:09:44 -0000 @@ -201,6 +201,11 @@ ripe(struct ripd_conf *xconf, int pipe_p ripe_imsg_compose_rde(IMSG_FULL_REQUEST, 0, 0, NULL, 0); + if (unveil("/", "") == -1) + fatal("unveil"); + if (unveil(NULL, NULL) == -1) + fatal("unveil"); + event_dispatch(); ripe_shutdown();