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Fix pledge.com interop with Go DNS

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Based on a pure analysis of the Go source code, it wants:

- SOL_SOCKET + SO_BROADCAST
- IPPROTO_IPV6 + IPV6_V6ONLY

Fixes #627
This commit is contained in:
Justine Tunney 2022-09-18 03:56:52 -07:00
parent e14ae1642e
commit be29b709b7
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GPG key ID: BE714B4575D6E328
3 changed files with 68 additions and 58 deletions
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6
test/libc/calls/pledge_test.c
View file

@ -49,7 +49,9 @@
#include "libc/sysv/consts/pr.h"
#include "libc/sysv/consts/prot.h"
#include "libc/sysv/consts/sig.h"
#include "libc/sysv/consts/so.h"
#include "libc/sysv/consts/sock.h"
#include "libc/sysv/consts/sol.h"
#include "libc/testlib/ezbench.h"
#include "libc/testlib/testlib.h"
#include "libc/thread/spawn.h"
@ -310,7 +312,7 @@ TEST(pledge, wpath_doesNotImplyRpath) {
TEST(pledge, inet_forbidsOtherSockets) {
if (IsOpenbsd()) return; // b/c testing linux bpf
int ws, pid;
int ws, pid, yes = 1;
ASSERT_NE(-1, (pid = fork()));
if (!pid) {
ASSERT_SYS(0, 0, pledge("stdio inet", 0));
@ -319,10 +321,12 @@ TEST(pledge, inet_forbidsOtherSockets) {
ASSERT_SYS(0, 5, socket(AF_INET, SOCK_STREAM, IPPROTO_TCP));
ASSERT_SYS(0, 6, socket(AF_INET6, SOCK_DGRAM, IPPROTO_UDP));
ASSERT_SYS(0, 7, socket(AF_INET6, SOCK_DGRAM | SOCK_NONBLOCK, IPPROTO_UDP));
ASSERT_SYS(0, 0, setsockopt(3, SOL_SOCKET, SO_BROADCAST, &yes, 4));
ASSERT_SYS(EPERM, -1, socket(AF_UNIX, SOCK_STREAM, 0));
ASSERT_SYS(EPERM, -1, socket(AF_BLUETOOTH, SOCK_DGRAM, IPPROTO_UDP));
ASSERT_SYS(EPERM, -1, socket(AF_INET, SOCK_RAW, IPPROTO_UDP));
ASSERT_SYS(EPERM, -1, socket(AF_INET, SOCK_DGRAM, IPPROTO_RAW));
ASSERT_SYS(EPERM, -1, setsockopt(3, SOL_SOCKET, SO_TIMESTAMP, &yes, 4));
struct sockaddr_in sin = {AF_INET, 0, {htonl(0x7f000001)}};
ASSERT_SYS(0, 0, bind(4, &sin, sizeof(sin)));
uint32_t az = sizeof(sin);