gfwleak/zhangyang-libzt
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A patch for a patch, formatting in selftest.cpp

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This commit is contained in:
Joseph Henry
2017-09-29 16:25:26 -07:00
parent a4b0457c58
commit 2d70336ee4
3 changed files with 32 additions and 28 deletions
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44
src/libzt.cpp
View File

@@ -54,7 +54,7 @@ void sys2lwip(int fd, const struct sockaddr *orig, struct sockaddr *modified)
lwIP seems to lose track of the sa_family for the socket internally, when lwip_connect()
is called, it thus receives an AF_UNSPEC socket which fails. Here we use lwIP's own facilities
to get the sa_family ourselves and rebuild the address structure and pass it to lwip_connect().
I suspect this is due to a struct memory alignment issue. */
I suspect this is due to a struct memory alignment issue or my own misuse of the API */
struct sockaddr_storage ss;
socklen_t namelen = sizeof(ss);
int err = 0;
@@ -62,28 +62,34 @@ void sys2lwip(int fd, const struct sockaddr *orig, struct sockaddr *modified)
DEBUG_ERROR("error while determining socket family");
return;
}
if (ss.ss_family == AF_INET) {
#if defined(__linux__)
struct sockaddr_in *modified_ptr = (struct sockaddr_in *)modified;
struct sockaddr_in *addr4 = (struct sockaddr_in*)orig;
modified_ptr->sin_len = sizeof(struct sockaddr_in);
modified_ptr->sin_family = ss.ss_family;
modified_ptr->sin_port = addr4->sin_port;
modified_ptr->sin_addr.s_addr = addr4->sin_addr.s_addr;
#else
#if defined(LIBZT_IPV4)
memcpy(modified, orig, sizeof(struct sockaddr_in));
#endif
#if defined(LIBZT_IPV6)
memcpy(modified, orig, sizeof(struct sockaddr_in6));
#endif
#endif
}
if (ss.ss_family == AF_INET) {
#if defined(__linux__)
#else
#endif
struct sockaddr_in *p4 = (struct sockaddr_in *)modified;
struct sockaddr_in *addr4 = (struct sockaddr_in*)orig;
p4->sin_len = sizeof(struct sockaddr_in);
p4->sin_family = ss.ss_family;
p4->sin_port = addr4->sin_port;
p4->sin_addr.s_addr = addr4->sin_addr.s_addr;
#endif // __linux__
memcpy(modified, orig, sizeof(struct sockaddr_in));
}
#endif // LIBZT_IPV4
#if defined(LIBZT_IPV6)
if (ss.ss_family == AF_INET6) {
#if defined(__linux__)
struct sockaddr_in6 *p6 = (struct sockaddr_in6 *)modified;
struct sockaddr_in6 *addr6 = (struct sockaddr_in6*)orig;
p6->sin6_len = sizeof(struct sockaddr_in6);
p6->sin6_family = ss.ss_family;
p6->sin6_port = addr6->sin6_port;
//p6->sin6_addr.s6_addr = addr6->sin6_addr.s6_addr;
#endif // __linux__
memcpy(modified, orig, sizeof(struct sockaddr_in6));
}
#endif // LIBZT_IPV6
}
#endif // STACK_LWIP

2
src/lwIP.cpp
View File

@@ -62,7 +62,7 @@ ZeroTier::Mutex driver_m;
err_t tapif_init(struct netif *netif)
{
// we do the actual initialization in lwip_init_interface
// we do the actual initialization in elsewhere
return ERR_OK;
}

2
test/selftest.cpp
View File

@@ -3088,5 +3088,3 @@ for (int i=0; i<num_repeats; i++)
}
return err;
}
// FCNTL(client_fd, F_SETFL, O_NONBLOCK);