diff options
Diffstat (limited to 'src/lib/sandbox/sandbox.c')
| -rw-r--r-- | src/lib/sandbox/sandbox.c | 42 |
1 files changed, 29 insertions, 13 deletions
diff --git a/src/lib/sandbox/sandbox.c b/src/lib/sandbox/sandbox.c index 8f577b0660..b917912f4d 100644 --- a/src/lib/sandbox/sandbox.c +++ b/src/lib/sandbox/sandbox.c @@ -1,7 +1,7 @@ /* Copyright (c) 2001 Matej Pfajfar. * Copyright (c) 2001-2004, Roger Dingledine. * Copyright (c) 2004-2006, Roger Dingledine, Nick Mathewson. - * Copyright (c) 2007-2019, The Tor Project, Inc. */ + * Copyright (c) 2007-2020, The Tor Project, Inc. */ /* See LICENSE for licensing information */ /** @@ -38,13 +38,12 @@ #include "lib/err/torerr.h" #include "lib/log/log.h" #include "lib/cc/torint.h" -#include "lib/net/resolve.h" #include "lib/malloc/malloc.h" #include "lib/string/scanf.h" -#include "tor_queue.h" -#include "ht.h" -#include "siphash.h" +#include "ext/tor_queue.h" +#include "ext/ht.h" +#include "ext/siphash.h" #define DEBUGGING_CLOSE @@ -83,7 +82,7 @@ #if defined(HAVE_EXECINFO_H) && defined(HAVE_BACKTRACE) && \ defined(HAVE_BACKTRACE_SYMBOLS_FD) && defined(HAVE_SIGACTION) #define USE_BACKTRACE -#define EXPOSE_CLEAN_BACKTRACE +#define BACKTRACE_PRIVATE #include "lib/err/backtrace.h" #endif /* defined(HAVE_EXECINFO_H) && defined(HAVE_BACKTRACE) && ... */ @@ -144,6 +143,7 @@ static int filter_nopar_gen[] = { SCMP_SYS(clock_gettime), SCMP_SYS(close), SCMP_SYS(clone), + SCMP_SYS(dup), SCMP_SYS(epoll_create), SCMP_SYS(epoll_wait), #ifdef __NR_epoll_pwait @@ -166,6 +166,7 @@ static int filter_nopar_gen[] = { #ifdef __NR_fstat64 SCMP_SYS(fstat64), #endif + SCMP_SYS(fsync), SCMP_SYS(futex), SCMP_SYS(getdents), SCMP_SYS(getdents64), @@ -265,6 +266,11 @@ static int filter_nopar_gen[] = { SCMP_SYS(listen), SCMP_SYS(connect), SCMP_SYS(getsockname), +#ifdef ENABLE_NSS +#ifdef __NR_getpeername + SCMP_SYS(getpeername), +#endif +#endif SCMP_SYS(recvmsg), SCMP_SYS(recvfrom), SCMP_SYS(sendto), @@ -295,6 +301,7 @@ sb_rt_sigaction(scmp_filter_ctx ctx, sandbox_cfg_t *filter) unsigned i; int rc; int param[] = { SIGINT, SIGTERM, SIGPIPE, SIGUSR1, SIGUSR2, SIGHUP, SIGCHLD, + SIGSEGV, SIGILL, SIGFPE, SIGBUS, SIGSYS, SIGIO, #ifdef SIGXFSZ SIGXFSZ #endif @@ -444,7 +451,7 @@ libc_uses_openat_for_everything(void) return 1; else return 0; -#else /* !(defined(CHECK_LIBC_VERSION)) */ +#else /* !defined(CHECK_LIBC_VERSION) */ return 0; #endif /* defined(CHECK_LIBC_VERSION) */ } @@ -647,6 +654,15 @@ sb_socket(scmp_filter_ctx ctx, sandbox_cfg_t *filter) } } +#ifdef ENABLE_NSS + rc = seccomp_rule_add_3(ctx, SCMP_ACT_ALLOW, SCMP_SYS(socket), + SCMP_CMP(0, SCMP_CMP_EQ, PF_INET), + SCMP_CMP(1, SCMP_CMP_EQ, SOCK_STREAM), + SCMP_CMP(2, SCMP_CMP_EQ, IPPROTO_IP)); + if (rc) + return rc; +#endif + rc = seccomp_rule_add_3(ctx, SCMP_ACT_ALLOW, SCMP_SYS(socket), SCMP_CMP(0, SCMP_CMP_EQ, PF_UNIX), SCMP_CMP_MASKED(1, SOCK_CLOEXEC|SOCK_NONBLOCK, SOCK_STREAM), @@ -798,6 +814,12 @@ sb_getsockopt(scmp_filter_ctx ctx, sandbox_cfg_t *filter) if (rc) return rc; + rc = seccomp_rule_add_2(ctx, SCMP_ACT_ALLOW, SCMP_SYS(getsockopt), + SCMP_CMP(1, SCMP_CMP_EQ, SOL_SOCKET), + SCMP_CMP(2, SCMP_CMP_EQ, SO_ACCEPTCONN)); + if (rc) + return rc; + #ifdef HAVE_SYSTEMD rc = seccomp_rule_add_2(ctx, SCMP_ACT_ALLOW, SCMP_SYS(getsockopt), SCMP_CMP(1, SCMP_CMP_EQ, SOL_SOCKET), @@ -1517,7 +1539,6 @@ install_syscall_filter(sandbox_cfg_t* cfg) // marking the sandbox as active sandbox_active = 1; - tor_make_getaddrinfo_cache_active(); end: seccomp_release(ctx); @@ -1764,9 +1785,4 @@ sandbox_is_active(void) return 0; } -void -sandbox_disable_getaddrinfo_cache(void) -{ -} - #endif /* !defined(USE_LIBSECCOMP) */ |