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r13827@catbus: nickm | 2007-07-19 14:42:25 -0400
Merge in some generic address manipulation code from croup. Needs some work. svn:r10880
This commit is contained in:
Nick Mathewson
parent
70aef18db1
commit
bbbf504281
@ -30,6 +30,10 @@ Changes in version 0.2.0.3-alpha - 2007-??-??
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expiry information. addr-mappings/* is now deprecated.
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expiry information. addr-mappings/* is now deprecated.
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(Patch from Tup.)
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(Patch from Tup.)
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o Minor features (IPv6):
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- Merge in some (as-yet-unused) IPv6 address manipulation code. (Patch
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from croup.)
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o Performance improvements (win32):
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o Performance improvements (win32):
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- Use Critical Sections rather than Mutexes for synchronizing threads
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- Use Critical Sections rather than Mutexes for synchronizing threads
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on win32; Mutexes are heavier-weight, and designed for synchronizing
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on win32; Mutexes are heavier-weight, and designed for synchronizing
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@ -329,7 +329,7 @@ AC_CHECK_SIZEOF(size_t)
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AC_CHECK_TYPES([uint, u_char])
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AC_CHECK_TYPES([uint, u_char])
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AC_CHECK_TYPES([struct in6_addr, struct sockaddr_storage], , ,
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AC_CHECK_TYPES([struct in6_addr, struct sockaddr_in6, struct sockaddr_storage], , ,
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[#ifdef HAVE_SYS_TYPES_H
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[#ifdef HAVE_SYS_TYPES_H
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#include <sys/types.h>
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#include <sys/types.h>
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#endif
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#endif
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@ -1004,7 +1004,7 @@ tor_inet_pton(int af, const char *src, void *dst)
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}
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}
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/** Similar behavior to Unix gethostbyname: resolve <b>name</b>, and set
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/** Similar behavior to Unix gethostbyname: resolve <b>name</b>, and set
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* *addr to the proper IP address, in network byte order. Returns 0
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* *<b>addr</b> to the proper IP address, in host byte order. Returns 0
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* on success, -1 on failure; 1 on transient failure.
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* on success, -1 on failure; 1 on transient failure.
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*
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*
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* (This function exists because standard windows gethostbyname
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* (This function exists because standard windows gethostbyname
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@ -1012,39 +1012,91 @@ tor_inet_pton(int af, const char *src, void *dst)
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*/
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*/
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int
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int
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tor_lookup_hostname(const char *name, uint32_t *addr)
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tor_lookup_hostname(const char *name, uint32_t *addr)
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{
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tor_addr_t myaddr;
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int ret;
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if ((ret = tor_addr_lookup(name, AF_INET, &myaddr)))
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return ret;
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if (IN_FAMILY(&myaddr) == AF_INET) {
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*addr = IPV4IPh(&myaddr);
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return ret;
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}
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return -1;
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}
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/** Similar behavior to Unix gethostbyname: resolve <b>name</b>, and set
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* *<b>addr</b> to the proper IP address and family.
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* Return 0 on success, -1 on failure; 1 on transient failure.
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* DOCDOC family argument.
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*/
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int
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tor_addr_lookup(const char *name, uint16_t family, tor_addr_t *addr)
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{
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{
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/* Perhaps eventually this should be replaced by a tor_getaddrinfo or
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/* Perhaps eventually this should be replaced by a tor_getaddrinfo or
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* something.
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* something.
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*/
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*/
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struct in_addr iaddr;
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struct in_addr iaddr;
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struct in6_addr iaddr6;
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tor_assert(name);
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tor_assert(name);
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tor_assert(addr);
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tor_assert(addr);
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tor_assert(family == AF_INET || family == AF_UNSPEC);
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memset(addr, 0, sizeof(addr)); /* Clear the extraneous fields. */
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if (!*name) {
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if (!*name) {
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/* Empty address is an error. */
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/* Empty address is an error. */
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return -1;
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return -1;
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} else if (tor_inet_aton(name, &iaddr)) {
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} else if (tor_inet_pton(AF_INET, name, &iaddr)) {
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/* It's an IP. */
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/* It's an IPv4 IP. */
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memcpy(addr, &iaddr.s_addr, 4);
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addr->sa.sin_family = AF_INET;
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memcpy(&addr->sa.sin_addr, &iaddr, sizeof(struct in_addr));
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return 0;
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} else if (tor_inet_pton(AF_INET6, name, &iaddr6)) {
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addr->sa6.sin6_family = AF_INET6;
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memcpy(&addr->sa6.sin6_addr, &iaddr6, sizeof(struct in6_addr));
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return 0;
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return 0;
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} else {
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} else {
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#ifdef HAVE_GETADDRINFO
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#ifdef HAVE_GETADDRINFO
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int err;
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int err;
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struct addrinfo *res=NULL, *res_p;
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struct addrinfo *res=NULL, *res_p;
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struct addrinfo *best=NULL;
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struct addrinfo hints;
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struct addrinfo hints;
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int result = -1;
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int result = -1;
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memset(&hints, 0, sizeof(hints));
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memset(&hints, 0, sizeof(hints));
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hints.ai_family = PF_INET;
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hints.ai_family = family;
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hints.ai_socktype = SOCK_STREAM;
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hints.ai_socktype = SOCK_STREAM;
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err = getaddrinfo(name, NULL, &hints, &res);
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err = getaddrinfo(name, NULL, &hints, &res);
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if (!err) {
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if (!err) {
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best = NULL;
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for (res_p = res; res_p; res_p = res_p->ai_next) {
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for (res_p = res; res_p; res_p = res_p->ai_next) {
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if (res_p->ai_family == AF_INET) {
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if (family == AF_UNSPEC) {
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struct sockaddr_in *sin = (struct sockaddr_in *)res_p->ai_addr;
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if (res_p->ai_family == AF_INET) {
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memcpy(addr, &sin->sin_addr, 4);
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best = res_p;
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result = 0;
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break;
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} else if (res_p->ai_family == AF_INET6 && !best) {
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best = res_p;
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}
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} else if (family == res_p->ai_family) {
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best = res_p;
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break;
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break;
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}
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}
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}
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}
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if (!best)
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best = res;
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if (best->ai_family == AF_INET) {
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addr->sa.sin_family = AF_INET;
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memcpy(&addr->sa.sin_addr,
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&((struct sockaddr_in*)best->ai_addr)->sin_addr,
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sizeof(struct in_addr));
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result = 0;
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} else if (best->ai_family == AF_INET6) {
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addr->sa6.sin6_family = AF_INET6;
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memcpy(&addr->sa6.sin6_addr,
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&((struct sockaddr_in6*)best->ai_addr)->sin6_addr,
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sizeof(struct in6_addr));
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result = 0;
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}
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freeaddrinfo(res);
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freeaddrinfo(res);
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return result;
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return result;
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}
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}
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@ -1074,14 +1126,19 @@ tor_lookup_hostname(const char *name, uint32_t *addr)
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#else
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#else
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err = h_errno;
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err = h_errno;
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#endif
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#endif
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#endif
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#endif /* endif HAVE_GETHOSTBYNAME_R_6_ARG. */
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if (ent) {
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if (ent) {
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/* break to remind us if we move away from IPv4 */
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addr->sa.sin_family = ent->h_addrtype;
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tor_assert(ent->h_length == 4);
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if (ent->h_addrtype == AF_INET) {
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memcpy(addr, ent->h_addr, 4);
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memcpy(addr->sa.sin_addr, ent->h_addr, sizeof(struct in_addr));
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} else if (ent->h_addrtype == AF_INET6) {
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memcpy(addr->sa.sin6_addr, ent->h_addr, sizeof(struct in6_addr));
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} else {
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tor_assert(0) /* gethostbyname() returned a bizarre addrtype */
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}
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return 0;
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return 0;
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}
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}
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memset(addr, 0, 4);
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memset(addr, 0, sizeof(tor_addr_t)); /* XXXX020 is this redundant? */
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#ifdef MS_WINDOWS
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#ifdef MS_WINDOWS
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return (err == WSATRY_AGAIN) ? 1 : -1;
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return (err == WSATRY_AGAIN) ? 1 : -1;
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#else
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#else
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@ -36,6 +36,15 @@
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#include <ctype.h>
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#include <ctype.h>
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#endif
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#endif
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#include <stdarg.h>
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#include <stdarg.h>
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#ifdef HAVE_SYS_SOCKET_H
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#include <sys/socket.h>
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#endif
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#ifdef HAVE_NETINET_IN_H
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#include <netinet/in.h>
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#endif
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#ifdef HAVE_NETINET_IN6_H
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#include <netinet/in6.h>
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#endif
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#ifndef NULL_REP_IS_ZERO_BYTES
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#ifndef NULL_REP_IS_ZERO_BYTES
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#error "It seems your platform does not represent NULL as zero. We can't cope."
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#error "It seems your platform does not represent NULL as zero. We can't cope."
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@ -263,11 +272,88 @@ typedef int socklen_t;
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#if !defined(HAVE_STRUCT_IN6_ADDR) && !defined(MS_WINDOWS)
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#if !defined(HAVE_STRUCT_IN6_ADDR) && !defined(MS_WINDOWS)
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struct in6_addr
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struct in6_addr
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{
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{
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uint8_t s6_addr[16];
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union {
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uint8_t u6_addr8[16];
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uint16_t u6_addr16[8];
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uint32_t u6_addr32[4];
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} in6_u;
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#define s6_addr in6_u.u6_addr8
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#define s6_addr16 in6_u.u6_addr16
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#define s6_addr32 in6_u.u6_addr32
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};
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};
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#endif
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#endif
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#if !defined(HAVE_STRUCT_SOCKADDR_IN6)
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struct sockaddr_in6 {
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uint16_t sin6_family; /* XXXX020 right size???? */
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uint16_t sin6_port;
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// uint32_t sin6_flowinfo;
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struct in6_addr sin6_addr;
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// uint32_t sin6_scope_id;
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};
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#endif
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typedef uint8_t maskbits_t;
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struct in_addr;
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struct in_addr;
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typedef union tor_addr_t
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{
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/* XXXX020 There are extra fields in sockaddr_in and sockaddr_in6 that
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* make this union waste space. Do we care? */
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struct sockaddr_in sa;
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struct sockaddr_in6 sa6;
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} tor_addr_t;
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/* XXXX020 rename these. */
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static INLINE uint32_t IPV4IP(const tor_addr_t *a);
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static INLINE uint32_t IPV4IPh(const tor_addr_t *a);
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static INLINE uint32_t IPV4MAPh(const tor_addr_t *a);
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static INLINE uint16_t IN_FAMILY(const tor_addr_t *a);
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static INLINE const struct in_addr *IN_ADDR(const tor_addr_t *a);
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static INLINE const struct in6_addr *IN6_ADDR(const tor_addr_t *a);
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static INLINE uint16_t IN_PORT(const tor_addr_t *a);
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static INLINE uint32_t
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IPV4IP(const tor_addr_t *a)
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{
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return a->sa.sin_addr.s_addr;
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}
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static INLINE uint32_t IPV4IPh(const tor_addr_t *a)
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{
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/*XXXX020 remove this function */
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return ntohl(IPV4IP(a));
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}
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static INLINE uint32_t
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IPV4MAPh(const tor_addr_t *a)
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{
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return ntohl(a->sa6.sin6_addr.s6_addr32[3]);
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}
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static INLINE uint16_t
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IN_FAMILY(const tor_addr_t *a)
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{
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return a->sa.sin_family;
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}
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static INLINE const struct in_addr *
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IN_ADDR(const tor_addr_t *a)
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{
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return &a->sa.sin_addr;
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}
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static INLINE const struct in6_addr *
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IN6_ADDR(const tor_addr_t *a)
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{
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return &a->sa6.sin6_addr;
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}
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static INLINE uint16_t
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IN_PORT(const tor_addr_t *a)
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{
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if (IN_FAMILY(a) == AF_INET)
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return a->sa.sin_port;
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else
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return a->sa6.sin6_port;
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}
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#define INET_NTOA_BUF_LEN 16 /* 255.255.255.255 */
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#define TOR_ADDR_BUF_LEN 46 /* ffff:ffff:ffff:ffff:ffff:ffff:255.255.255.255 */
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int tor_inet_aton(const char *cp, struct in_addr *addr) ATTR_NONNULL((1,2));
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int tor_inet_aton(const char *cp, struct in_addr *addr) ATTR_NONNULL((1,2));
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const char *tor_inet_ntop(int af, const void *src, char *dst, size_t len);
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const char *tor_inet_ntop(int af, const void *src, char *dst, size_t len);
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int tor_inet_pton(int af, const char *src, void *dst);
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int tor_inet_pton(int af, const char *src, void *dst);
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@ -275,6 +361,9 @@ int tor_lookup_hostname(const char *name, uint32_t *addr) ATTR_NONNULL((1,2));
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void set_socket_nonblocking(int socket);
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void set_socket_nonblocking(int socket);
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int tor_socketpair(int family, int type, int protocol, int fd[2]);
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int tor_socketpair(int family, int type, int protocol, int fd[2]);
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int network_init(void);
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int network_init(void);
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int tor_addr_lookup(const char *name, uint16_t family, tor_addr_t *addr_out);
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/* For stupid historical reasons, windows sockets have an independent
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/* For stupid historical reasons, windows sockets have an independent
|
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* set of errnos, and an independent way to get them. Also, you can't
|
* set of errnos, and an independent way to get them. Also, you can't
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* always believe WSAEWOULDBLOCK. Use the macros below to compare
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* always believe WSAEWOULDBLOCK. Use the macros below to compare
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@ -1828,18 +1828,96 @@ path_is_relative(const char *filename)
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int
|
int
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is_internal_IP(uint32_t ip, int for_listening)
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is_internal_IP(uint32_t ip, int for_listening)
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{
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{
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if (for_listening && !ip) /* special case for binding to 0.0.0.0 */
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tor_addr_t myaddr;
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return 0;
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myaddr.sa.sin_family = AF_INET;
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if (((ip & 0xff000000) == 0x0a000000) || /* 10/8 */
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myaddr.sa.sin_addr.s_addr = htonl(ip);
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((ip & 0xff000000) == 0x00000000) || /* 0/8 */
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((ip & 0xff000000) == 0x7f000000) || /* 127/8 */
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return tor_addr_is_internal(&myaddr, for_listening);
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((ip & 0xffff0000) == 0xa9fe0000) || /* 169.254/16 */
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((ip & 0xfff00000) == 0xac100000) || /* 172.16/12 */
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((ip & 0xffff0000) == 0xc0a80000)) /* 192.168/16 */
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return 1;
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return 0;
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}
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}
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|
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/** Return true iff <b>ip</b> is an IP reserved to localhost or local networks
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|
* in RFC1918 or RFC4193 or RFC4291. (fec0::/10, deprecated by RFC3879, is
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* also treated as internal for now.)
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*/
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int
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tor_addr_is_internal(const tor_addr_t *addr, int for_listening)
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{
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uint32_t iph4;
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uint32_t iph6[4];
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|
sa_family_t v_family;
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v_family = IN_FAMILY(addr);
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|
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if (v_family == AF_INET) {
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iph4 = IPV4IPh(addr);
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} else if (v_family == AF_INET6) {
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if (tor_addr_is_v4(addr)) { /* v4-mapped */
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v_family = AF_INET;
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iph4 = ntohl(IN6_ADDR(addr)->s6_addr32[3]);
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}
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}
|
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|
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|
if (v_family == AF_INET6) {
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iph6[0] = ntohl(IN6_ADDR(addr)->s6_addr32[0]);
|
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iph6[1] = ntohl(IN6_ADDR(addr)->s6_addr32[1]);
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iph6[2] = ntohl(IN6_ADDR(addr)->s6_addr32[2]);
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iph6[3] = ntohl(IN6_ADDR(addr)->s6_addr32[3]);
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if (for_listening && !iph6[0] && !iph6[1] && !iph6[2] && !iph6[3]) /* :: */
|
||||||
|
return 0;
|
||||||
|
|
||||||
|
if (((iph6[0] & 0xfe000000) == 0xfc000000) || /* fc00/7 - RFC4193 */
|
||||||
|
((iph6[0] & 0xffc00000) == 0xfe800000) || /* fe80/10 - RFC4291 */
|
||||||
|
((iph6[0] & 0xffc00000) == 0xfec00000)) /* fec0/10 D- RFC3879 */
|
||||||
|
return 1;
|
||||||
|
|
||||||
|
if (!iph6[0] && !iph6[1] && !iph6[2] &&
|
||||||
|
((iph6[3] & 0xfffffffe) == 0x00000000)) /* ::/127 */
|
||||||
|
return 1;
|
||||||
|
|
||||||
|
return 0;
|
||||||
|
} else if (v_family == AF_INET) {
|
||||||
|
if (for_listening && !iph4) /* special case for binding to 0.0.0.0 */
|
||||||
|
return 0;
|
||||||
|
if (((iph4 & 0xff000000) == 0x0a000000) || /* 10/8 */
|
||||||
|
((iph4 & 0xff000000) == 0x00000000) || /* 0/8 */
|
||||||
|
((iph4 & 0xff000000) == 0x7f000000) || /* 127/8 */
|
||||||
|
((iph4 & 0xffff0000) == 0xa9fe0000) || /* 169.254/16 */
|
||||||
|
((iph4 & 0xfff00000) == 0xac100000) || /* 172.16/12 */
|
||||||
|
((iph4 & 0xffff0000) == 0xc0a80000)) /* 192.168/16 */
|
||||||
|
return 1;
|
||||||
|
return 0;
|
||||||
|
}
|
||||||
|
|
||||||
|
/* unknown address family... assume it's not safe for external use */
|
||||||
|
/* rather than tor_assert(0) */
|
||||||
|
log_warn(LD_BUG, "tor_addr_is_internal() called with a non-IP address.");
|
||||||
|
return 1;
|
||||||
|
}
|
||||||
|
|
||||||
|
#if 0
|
||||||
|
/** Convert a tor_addr_t <b>addr</b> into a string, and store it in
|
||||||
|
* <b>dest</b> of size <b>len</b>. Returns a pointer to dest on success,
|
||||||
|
* or NULL on failure.
|
||||||
|
*/
|
||||||
|
void
|
||||||
|
tor_addr_to_str(char *dest, const tor_addr_t *addr, int len)
|
||||||
|
{
|
||||||
|
const char *ptr;
|
||||||
|
tor_assert(addr && dest);
|
||||||
|
|
||||||
|
switch (IN_FAMILY(addr)) {
|
||||||
|
case AF_INET:
|
||||||
|
ptr = tor_inet_ntop(AF_INET, &addr->sa.sin_addr, dest, len);
|
||||||
|
break;
|
||||||
|
case AF_INET6:
|
||||||
|
ptr = tor_inet_ntop(AF_INET6, &addr->sa6.sin6_addr, dest, len);
|
||||||
|
break;
|
||||||
|
default:
|
||||||
|
return NULL;
|
||||||
|
}
|
||||||
|
return ptr;
|
||||||
|
}
|
||||||
|
#endif
|
||||||
|
|
||||||
/** Parse a string of the form "host[:port]" from <b>addrport</b>. If
|
/** Parse a string of the form "host[:port]" from <b>addrport</b>. If
|
||||||
* <b>address</b> is provided, set *<b>address</b> to a copy of the
|
* <b>address</b> is provided, set *<b>address</b> to a copy of the
|
||||||
* host portion of the string. If <b>addr</b> is provided, try to
|
* host portion of the string. If <b>addr</b> is provided, try to
|
||||||
@ -1889,7 +1967,6 @@ parse_addr_port(int severity, const char *addrport, char **address,
|
|||||||
ok = 0;
|
ok = 0;
|
||||||
*addr = 0;
|
*addr = 0;
|
||||||
}
|
}
|
||||||
*addr = ntohl(*addr);
|
|
||||||
}
|
}
|
||||||
|
|
||||||
if (address && ok) {
|
if (address && ok) {
|
||||||
@ -2055,9 +2132,244 @@ parse_addr_and_port_range(const char *s, uint32_t *addr_out,
|
|||||||
return -1;
|
return -1;
|
||||||
}
|
}
|
||||||
|
|
||||||
/** Given an IPv4 address <b>in</b> (in network order, as usual),
|
/** Parse a string <b>s</b> containing an IPv4/IPv6 address, and possibly
|
||||||
* write it as a string into the <b>buf_len</b>-byte buffer in
|
* a mask and port or port range. Store the parsed address in
|
||||||
* <b>buf</b>.
|
* <b>addr_out</b>, a mask (if any) in <b>mask_out</b>, and port(s) (if any)
|
||||||
|
* in <b>port_min_out</b> and <b>port_max_out</b>.
|
||||||
|
*
|
||||||
|
* DOCDOC exact syntax.
|
||||||
|
*
|
||||||
|
* - If mask, minport, or maxport are NULL, avoid storing those elements.
|
||||||
|
* - If the string has no mask, the mask is set to /32 (IPv4) or /128 (IPv6).
|
||||||
|
* - If the string has one port, it is placed in both min and max port
|
||||||
|
* variables.
|
||||||
|
* - If the string has no port(s), port_(min|max)_out are set to 1 and 65535.
|
||||||
|
*
|
||||||
|
* Return an address family on success, or -1 if an invalid address string is
|
||||||
|
* provided.
|
||||||
|
*/
|
||||||
|
int
|
||||||
|
tor_addr_parse_mask_ports(const char *s, tor_addr_t *addr_out,
|
||||||
|
maskbits_t *maskbits_out,
|
||||||
|
uint16_t *port_min_out, uint16_t *port_max_out)
|
||||||
|
{
|
||||||
|
char *base = NULL, *address, *mask = NULL, *port = NULL, *rbracket = NULL;
|
||||||
|
char *endptr;
|
||||||
|
int any_flag=0, v4map=0;
|
||||||
|
|
||||||
|
tor_assert(s);
|
||||||
|
tor_assert(addr_out);
|
||||||
|
|
||||||
|
/* IP, [], /mask, ports */
|
||||||
|
#define MAX_ADDRESS_LENGTH (TOR_ADDR_BUF_LEN+2+(1+INET_NTOA_BUF_LEN)+12+1)
|
||||||
|
|
||||||
|
if (strlen(s) > MAX_ADDRESS_LENGTH) {
|
||||||
|
log_warn(LD_GENERAL, "Impossibly long IP %s; rejecting", escaped(s));
|
||||||
|
goto err;
|
||||||
|
}
|
||||||
|
base = tor_strdup(s);
|
||||||
|
|
||||||
|
/* Break 'base' into separate strings. */
|
||||||
|
address = base;
|
||||||
|
if (*address == '[') { /* Probably IPv6 */
|
||||||
|
address++;
|
||||||
|
rbracket = strchr(address, ']');
|
||||||
|
if (!rbracket) {
|
||||||
|
log_warn(LD_GENERAL,
|
||||||
|
"No closing IPv6 bracket in address pattern; rejecting.");
|
||||||
|
goto err;
|
||||||
|
}
|
||||||
|
}
|
||||||
|
mask = strchr((rbracket?rbracket:address),'/');
|
||||||
|
port = strchr((mask?mask:(rbracket?rbracket:address)), ':');
|
||||||
|
if (port)
|
||||||
|
*port++ = '\0';
|
||||||
|
if (mask)
|
||||||
|
*mask++ = '\0';
|
||||||
|
if (rbracket)
|
||||||
|
*rbracket = '\0';
|
||||||
|
if (port && mask)
|
||||||
|
tor_assert(port > mask);
|
||||||
|
if (mask && rbracket)
|
||||||
|
tor_assert(mask > rbracket);
|
||||||
|
|
||||||
|
/* Now "address" is the a.b.c.d|'*'|abcd::1 part...
|
||||||
|
* "mask" is the Mask|Maskbits part...
|
||||||
|
* and "port" is the *|port|min-max part.
|
||||||
|
*/
|
||||||
|
|
||||||
|
/* Process the address portion */
|
||||||
|
memset(addr_out, 0, sizeof(tor_addr_t));
|
||||||
|
|
||||||
|
if (!strcmp(address, "*")) {
|
||||||
|
addr_out->sa.sin_family = AF_INET; /* AF_UNSPEC ???? XXXXX020 */
|
||||||
|
any_flag = 1;
|
||||||
|
} else if (tor_inet_pton(AF_INET6, address, &addr_out->sa6.sin6_addr) > 0) {
|
||||||
|
addr_out->sa6.sin6_family = AF_INET6;
|
||||||
|
} else if (tor_inet_pton(AF_INET, address, &addr_out->sa.sin_addr) > 0) {
|
||||||
|
addr_out->sa.sin_family = AF_INET;
|
||||||
|
} else {
|
||||||
|
log_warn(LD_GENERAL, "Malformed IP %s in address pattern; rejecting.",
|
||||||
|
escaped(address));
|
||||||
|
goto err;
|
||||||
|
}
|
||||||
|
|
||||||
|
v4map = tor_addr_is_v4(addr_out);
|
||||||
|
|
||||||
|
/*
|
||||||
|
#ifdef ALWAYS_V6_MAP
|
||||||
|
if (v_family == AF_INET) {
|
||||||
|
v_family = AF_INET6;
|
||||||
|
IN_ADDR6(addr_out).s6_addr32[3] = IN6_ADDR(addr_out).s_addr;
|
||||||
|
memset(&IN6_ADDR(addr_out), 0, 10);
|
||||||
|
IN_ADDR6(addr_out).s6_addr16[5] = 0xffff;
|
||||||
|
}
|
||||||
|
#else
|
||||||
|
if (v_family == AF_INET6 && v4map) {
|
||||||
|
v_family = AF_INET;
|
||||||
|
IN_ADDR(addr_out).s_addr = IN6_ADDR(addr_out).s6_addr32[3];
|
||||||
|
}
|
||||||
|
#endif
|
||||||
|
*/
|
||||||
|
|
||||||
|
/* Parse mask */
|
||||||
|
if (maskbits_out) {
|
||||||
|
int bits = 0;
|
||||||
|
struct in_addr v4mask;
|
||||||
|
|
||||||
|
if (mask) { /* the caller (tried to) specify a mask */
|
||||||
|
bits = (int) strtol(mask, &endptr, 10);
|
||||||
|
if (!*endptr) { /* strtol converted everything, so it was an integer */
|
||||||
|
if ((bits<0 || bits>128) ||
|
||||||
|
((IN_FAMILY(addr_out) == AF_INET) && bits > 32)) {
|
||||||
|
log_warn(LD_GENERAL,
|
||||||
|
"Bad number of mask bits (%d) on address range; rejecting.",
|
||||||
|
bits);
|
||||||
|
goto err;
|
||||||
|
}
|
||||||
|
} else { /* mask might still be an address-style mask */
|
||||||
|
if (tor_inet_pton(AF_INET, mask, &v4mask) > 0) {
|
||||||
|
bits = addr_mask_get_bits(ntohl(v4mask.s_addr));
|
||||||
|
if (bits < 0) {
|
||||||
|
log_warn(LD_GENERAL,
|
||||||
|
"IPv4-style mask %s is not a prefix address; rejecting.",
|
||||||
|
escaped(mask));
|
||||||
|
goto err;
|
||||||
|
}
|
||||||
|
} else { /* Not IPv4; we don't do address-style IPv6 masks. */
|
||||||
|
log_warn(LD_GENERAL,
|
||||||
|
"Malformed mask on address range %s; rejecting.",
|
||||||
|
escaped(s));
|
||||||
|
goto err;
|
||||||
|
}
|
||||||
|
}
|
||||||
|
if (IN_FAMILY(addr_out) == AF_INET6 && v4map) {
|
||||||
|
if (bits > 32 && bits < 96) { /* Crazy */
|
||||||
|
log_warn(LD_GENERAL,
|
||||||
|
"Bad mask bits %i for V4-mapped V6 address; rejecting.",
|
||||||
|
bits);
|
||||||
|
goto err;
|
||||||
|
}
|
||||||
|
/* XXXX020 is this really what we want? */
|
||||||
|
bits = 96 + bits%32; /* map v4-mapped masks onto 96-128 bits */
|
||||||
|
}
|
||||||
|
} else { /* pick an appropriate mask, as none was given */
|
||||||
|
if (any_flag)
|
||||||
|
bits = 0; /* This is okay whether it's V6 or V4 (FIX V4-mapped V6!) */
|
||||||
|
else if (IN_FAMILY(addr_out) == AF_INET)
|
||||||
|
bits = 32;
|
||||||
|
else if (IN_FAMILY(addr_out) == AF_INET6)
|
||||||
|
bits = 128;
|
||||||
|
}
|
||||||
|
*maskbits_out = (maskbits_t) bits;
|
||||||
|
} else {
|
||||||
|
if (mask) {
|
||||||
|
log_warn(LD_GENERAL,
|
||||||
|
"Unexpected mask in addrss %s; rejecting", escaped(s));
|
||||||
|
goto err;
|
||||||
|
}
|
||||||
|
}
|
||||||
|
|
||||||
|
/* Parse port(s) */
|
||||||
|
if (port_min_out) {
|
||||||
|
uint16_t port2;
|
||||||
|
if (!port_max_out) /* caller specified one port; fake the second one */
|
||||||
|
port_max_out = &port2;
|
||||||
|
|
||||||
|
if (parse_port_range(port, port_min_out, port_max_out) < 0) {
|
||||||
|
goto err;
|
||||||
|
} else if ((*port_min_out != *port_max_out) && port_max_out == &port2) {
|
||||||
|
log_warn(LD_GENERAL,
|
||||||
|
"Wanted one port from address range, but there are two.");
|
||||||
|
|
||||||
|
port_max_out = NULL; /* caller specified one port, so set this back */
|
||||||
|
goto err;
|
||||||
|
}
|
||||||
|
} else {
|
||||||
|
if (port) {
|
||||||
|
log_warn(LD_GENERAL,
|
||||||
|
"Unexpected ports in addrss %s; rejecting", escaped(s));
|
||||||
|
goto err;
|
||||||
|
}
|
||||||
|
}
|
||||||
|
|
||||||
|
tor_free(base);
|
||||||
|
return IN_FAMILY(addr_out);
|
||||||
|
err:
|
||||||
|
tor_free(base);
|
||||||
|
return -1;
|
||||||
|
}
|
||||||
|
|
||||||
|
/** Determine whether an address is IPv4, either native or ipv4-mapped ipv6.
|
||||||
|
* Note that this is about representation only, as any decent stack will
|
||||||
|
* reject ipv4-mapped addresses received on the wire (and won't use them
|
||||||
|
* on the wire either).
|
||||||
|
*/
|
||||||
|
int
|
||||||
|
tor_addr_is_v4(const tor_addr_t *addr)
|
||||||
|
{
|
||||||
|
tor_assert(addr);
|
||||||
|
|
||||||
|
if (IN_FAMILY(addr) == AF_INET)
|
||||||
|
return 1;
|
||||||
|
|
||||||
|
if (IN_FAMILY(addr) == AF_INET6) { /* First two don't need to be ordered */
|
||||||
|
if ((IN6_ADDR(addr)->s6_addr32[0] == 0) &&
|
||||||
|
(IN6_ADDR(addr)->s6_addr32[1] == 0) &&
|
||||||
|
(ntohl(IN6_ADDR(addr)->s6_addr32[2]) == 0x0000ffffu))
|
||||||
|
return 1;
|
||||||
|
}
|
||||||
|
|
||||||
|
return 0; /* Not IPv4 - unknown family or a full-blood IPv6 address */
|
||||||
|
}
|
||||||
|
|
||||||
|
/** Determine whether an address <b>addr</b> is null, either all zeroes or
|
||||||
|
* belonging to family AF_UNSPEC.
|
||||||
|
*/
|
||||||
|
int
|
||||||
|
tor_addr_is_null(const tor_addr_t *addr)
|
||||||
|
{
|
||||||
|
tor_assert(addr);
|
||||||
|
|
||||||
|
switch(IN_FAMILY(addr)) {
|
||||||
|
case AF_INET6:
|
||||||
|
if (!IN6_ADDR(addr)->s6_addr32[0] && !IN6_ADDR(addr)->s6_addr32[1] &&
|
||||||
|
!IN6_ADDR(addr)->s6_addr32[2] && !IN6_ADDR(addr)->s6_addr32[3])
|
||||||
|
return 1;
|
||||||
|
return 0;
|
||||||
|
case AF_INET:
|
||||||
|
if (!IN_ADDR(addr)->s_addr)
|
||||||
|
return 1;
|
||||||
|
return 0;
|
||||||
|
default:
|
||||||
|
return 1;
|
||||||
|
}
|
||||||
|
//return 1;
|
||||||
|
}
|
||||||
|
|
||||||
|
/** Given an IPv4 in_addr struct *<b>in</b> (in network order, as usual),
|
||||||
|
* write it as a string into the <b>buf_len</b>-byte buffer in
|
||||||
|
* <b>buf</b>.
|
||||||
*/
|
*/
|
||||||
int
|
int
|
||||||
tor_inet_ntoa(const struct in_addr *in, char *buf, size_t buf_len)
|
tor_inet_ntoa(const struct in_addr *in, char *buf, size_t buf_len)
|
||||||
@ -2070,20 +2382,251 @@ tor_inet_ntoa(const struct in_addr *in, char *buf, size_t buf_len)
|
|||||||
(int)(uint8_t)((a )&0xff));
|
(int)(uint8_t)((a )&0xff));
|
||||||
}
|
}
|
||||||
|
|
||||||
/** Given a host-order <b>addr</b>, call tor_inet_ntoa() on it
|
/** Take a 32-bit host-order ipv4 address <b>v4addr</b> and store it in the
|
||||||
* and return a strdup of the resulting address.
|
* tor_addr *<b>dest</b>.
|
||||||
|
*
|
||||||
|
* XXXX020 Temporary, for use while 32-bit int addresses are still being
|
||||||
|
* passed around.
|
||||||
|
*/
|
||||||
|
void
|
||||||
|
tor_addr_from_ipv4(tor_addr_t *dest, uint32_t v4addr)
|
||||||
|
{
|
||||||
|
tor_assert(dest);
|
||||||
|
memset(dest, 0, sizeof(dest));
|
||||||
|
dest->sa.sin_family = AF_INET;
|
||||||
|
dest->sa.sin_addr.s_addr = htonl(v4addr);
|
||||||
|
}
|
||||||
|
|
||||||
|
/** Copy a tor_addr_t from <b>src</b> to <b>dest</b>.
|
||||||
|
*/
|
||||||
|
void
|
||||||
|
tor_addr_copy(tor_addr_t *dest, const tor_addr_t *src)
|
||||||
|
{
|
||||||
|
tor_assert(src && dest);
|
||||||
|
memcpy(dest, src, sizeof(tor_addr_t));
|
||||||
|
}
|
||||||
|
|
||||||
|
/** DOCDOC */
|
||||||
|
int
|
||||||
|
tor_addr_compare(const tor_addr_t *addr1, const tor_addr_t *addr2)
|
||||||
|
{
|
||||||
|
return tor_addr_compare_masked(addr1, addr2, 128);
|
||||||
|
}
|
||||||
|
|
||||||
|
/** Given two addresses <b>addr1</b> and <b>addr2</b>, return 0 if the two
|
||||||
|
* addresses are equivalent under the mask mbits, or nonzero if not.
|
||||||
|
*
|
||||||
|
* Different address families (IPv4 vs IPv6) are always considered unequal.
|
||||||
|
*
|
||||||
|
* Reduce over-specific masks (>128 for ipv6, >32 for ipv4) to 128 or 32.
|
||||||
|
*/
|
||||||
|
int
|
||||||
|
tor_addr_compare_masked(const tor_addr_t *addr1, const tor_addr_t *addr2,
|
||||||
|
maskbits_t mbits)
|
||||||
|
{
|
||||||
|
uint32_t ip4a=0, ip4b=0;
|
||||||
|
sa_family_t v_family[2];
|
||||||
|
int idx;
|
||||||
|
uint32_t masked_a, masked_b;
|
||||||
|
|
||||||
|
tor_assert(addr1 && addr2);
|
||||||
|
|
||||||
|
v_family[0] = IN_FAMILY(addr1);
|
||||||
|
v_family[1] = IN_FAMILY(addr2);
|
||||||
|
|
||||||
|
if (v_family[0] == AF_INET) { /* If this is native IPv4, note the address */
|
||||||
|
ip4a = IPV4IPh(addr1); /* Later we risk overwriting a v4-mapped address */
|
||||||
|
} else if ((v_family[0] == AF_INET6) && tor_addr_is_v4(addr1)) {
|
||||||
|
v_family[0] = AF_INET;
|
||||||
|
ip4a = IPV4MAPh(addr1);
|
||||||
|
}
|
||||||
|
|
||||||
|
if (v_family[1] == AF_INET) { /* If this is native IPv4, note the address */
|
||||||
|
ip4b = IPV4IPh(addr2); /* Later we risk overwriting a v4-mapped address */
|
||||||
|
} else if ((v_family[1] == AF_INET6) && tor_addr_is_v4(addr2)) {
|
||||||
|
v_family[1] = AF_INET;
|
||||||
|
ip4b = IPV4MAPh(addr2);
|
||||||
|
}
|
||||||
|
|
||||||
|
if (v_family[0] > v_family[1]) /* Comparison of virtual families */
|
||||||
|
return 1;
|
||||||
|
else if (v_family[0] < v_family[1])
|
||||||
|
return -1;
|
||||||
|
|
||||||
|
if (mbits == 0) /* Under a complete wildcard mask, consider them equal */
|
||||||
|
return 0;
|
||||||
|
|
||||||
|
if (v_family[0] == AF_INET) { /* Real or mapped IPv4 */
|
||||||
|
#if 0
|
||||||
|
if (mbits >= 32) {
|
||||||
|
masked_a = ip4a;
|
||||||
|
masked_b = ip4b;
|
||||||
|
} else {
|
||||||
|
masked_a = ip4a & (0xfffffffful << (32-mbits));
|
||||||
|
masked_b = ip4b & (0xfffffffful << (32-mbits));
|
||||||
|
}
|
||||||
|
#endif
|
||||||
|
if (mbits > 32)
|
||||||
|
mbits = 32;
|
||||||
|
masked_a = ip4a >> (32-mbits);
|
||||||
|
masked_b = ip4b >> (32-mbits);
|
||||||
|
if (masked_a < masked_b)
|
||||||
|
return -1;
|
||||||
|
else if (masked_a > masked_b)
|
||||||
|
return 1;
|
||||||
|
return 0;
|
||||||
|
} else if (v_family[0] == AF_INET6) { /* Real IPv6 */
|
||||||
|
maskbits_t lmbits;
|
||||||
|
const uint32_t *a1 = IN6_ADDR(addr1)->s6_addr32;
|
||||||
|
const uint32_t *a2 = IN6_ADDR(addr2)->s6_addr32;
|
||||||
|
for (idx = 0; idx < 4; ++idx) {
|
||||||
|
if (!mbits)
|
||||||
|
return 0; /* Mask covers both addresses from here on */
|
||||||
|
else if (mbits > 32)
|
||||||
|
lmbits = 32;
|
||||||
|
else
|
||||||
|
lmbits = mbits;
|
||||||
|
|
||||||
|
masked_a = ntohl(a1[idx]) >> (32-lmbits);
|
||||||
|
masked_b = ntohl(a2[idx]) >> (32-lmbits);
|
||||||
|
|
||||||
|
if (masked_a > masked_b)
|
||||||
|
return 1;
|
||||||
|
else if (masked_a < masked_b)
|
||||||
|
return -1;
|
||||||
|
|
||||||
|
if (mbits < 32)
|
||||||
|
return 0;
|
||||||
|
mbits -= 32;
|
||||||
|
}
|
||||||
|
#if 0
|
||||||
|
for (idx = 0; idx < 4; ++idx) {
|
||||||
|
if (mbits <= 32*idx) /* Mask covers both addresses from here on */
|
||||||
|
return 0;
|
||||||
|
if (mbits >= 32*(idx+1)) { /* Mask doesn't affect these 32 bits */
|
||||||
|
lmbits = 32;
|
||||||
|
} else {
|
||||||
|
lmbits = mbits % 32;
|
||||||
|
}
|
||||||
|
masked_a = ntohl(IN6_ADDR(addr1).s6_addr32[idx]) &
|
||||||
|
(0xfffffffful << (32-lmbits));
|
||||||
|
masked_b = ntohl(IN6_ADDR(addr2).s6_addr32[idx]) &
|
||||||
|
(0xfffffffful << (32-lmbits));
|
||||||
|
if (masked_a > masked_b)
|
||||||
|
return 1;
|
||||||
|
if (masked_a < masked_b)
|
||||||
|
return -1;
|
||||||
|
}
|
||||||
|
#endif
|
||||||
|
return 0;
|
||||||
|
}
|
||||||
|
|
||||||
|
tor_assert(0); /* Unknown address family */
|
||||||
|
return -1; /* unknown address family, return unequal? */
|
||||||
|
}
|
||||||
|
|
||||||
|
/** Given a host-order <b>addr</b>, call tor_inet_ntop() on it
|
||||||
|
* and return a strdup of the resulting address.
|
||||||
*/
|
*/
|
||||||
char *
|
char *
|
||||||
tor_dup_addr(uint32_t addr)
|
tor_dup_addr(uint32_t addr)
|
||||||
{
|
{
|
||||||
char buf[INET_NTOA_BUF_LEN];
|
char buf[TOR_ADDR_BUF_LEN];
|
||||||
struct in_addr in;
|
struct in_addr in;
|
||||||
|
|
||||||
in.s_addr = htonl(addr);
|
in.s_addr = htonl(addr);
|
||||||
tor_inet_ntoa(&in, buf, sizeof(buf));
|
tor_inet_ntop(AF_INET, &in, buf, sizeof(buf));
|
||||||
return tor_strdup(buf);
|
return tor_strdup(buf);
|
||||||
}
|
}
|
||||||
|
|
||||||
|
/** Convert the tor_addr_t *<b>addr</b> into string form and store it in
|
||||||
|
* <b>dest</b> (no more than <b>len</b> bytes). DOCDOC return value.
|
||||||
|
*/
|
||||||
|
const char *
|
||||||
|
tor_addr_to_str(char *dest, const tor_addr_t *addr, int len)
|
||||||
|
{
|
||||||
|
tor_assert(addr && dest);
|
||||||
|
|
||||||
|
if (IN_FAMILY(addr) == AF_INET) {
|
||||||
|
return tor_inet_ntop(AF_INET, IN_ADDR(addr), dest, len);
|
||||||
|
} else if (IN_FAMILY(addr) == AF_INET6) {
|
||||||
|
return tor_inet_ntop(AF_INET6, IN6_ADDR(addr), dest, len);
|
||||||
|
} else {
|
||||||
|
return NULL;
|
||||||
|
}
|
||||||
|
}
|
||||||
|
|
||||||
|
/** Convert the string in <b>src</b> to a tor_addr_t <b>addr</b>.
|
||||||
|
*/
|
||||||
|
int
|
||||||
|
tor_addr_from_str(tor_addr_t *addr, const char *src)
|
||||||
|
{
|
||||||
|
tor_assert(addr && src);
|
||||||
|
return tor_addr_parse_mask_ports(src, addr, NULL, NULL, NULL);
|
||||||
|
}
|
||||||
|
|
||||||
|
/** Set *<b>addr</b> to the IP address (if any) of whatever interface
|
||||||
|
* connects to the internet. This address should only be used in checking
|
||||||
|
* whether our address has changed. Return 0 on success, -1 on failure.
|
||||||
|
*/
|
||||||
|
int
|
||||||
|
get_interface_address6(int severity, sa_family_t family, tor_addr_t *addr)
|
||||||
|
{
|
||||||
|
int sock=-1, r=-1;
|
||||||
|
struct sockaddr_storage my_addr, target_addr;
|
||||||
|
socklen_t my_addr_len;
|
||||||
|
|
||||||
|
tor_assert(addr);
|
||||||
|
|
||||||
|
memset(addr, 0, sizeof(tor_addr_t));
|
||||||
|
memset(&target_addr, 0, sizeof(target_addr));
|
||||||
|
my_addr_len = sizeof(my_addr);
|
||||||
|
((struct sockaddr_in*)&target_addr)->sin_port = 9; /* DISGARD port */
|
||||||
|
/* Don't worry: no packets are sent. We just need to use a real address
|
||||||
|
* on the actual internet. */
|
||||||
|
if (family == AF_INET6) {
|
||||||
|
struct sockaddr_in6 *sin6 = (struct sockaddr_in6*)&target_addr;
|
||||||
|
sock = tor_open_socket(PF_INET6,SOCK_DGRAM,IPPROTO_UDP);
|
||||||
|
my_addr_len = sizeof(struct sockaddr_in6);
|
||||||
|
sin6->sin6_family = AF_INET6;
|
||||||
|
sin6->sin6_addr.s6_addr16[0] = htons(0x2002); /* 2002:: */
|
||||||
|
} else if (family == AF_INET) {
|
||||||
|
struct sockaddr_in *sin = (struct sockaddr_in*)&target_addr;
|
||||||
|
sock = tor_open_socket(PF_INET,SOCK_DGRAM,IPPROTO_UDP);
|
||||||
|
my_addr_len = sizeof(struct sockaddr_in);
|
||||||
|
sin->sin_family = AF_INET;
|
||||||
|
sin->sin_addr.s_addr = htonl(0x12000001); /* 18.0.0.1 */
|
||||||
|
} else {
|
||||||
|
return -1;
|
||||||
|
}
|
||||||
|
if (sock < 0) {
|
||||||
|
int e = tor_socket_errno(-1);
|
||||||
|
log_fn(severity, LD_NET, "unable to create socket: %s",
|
||||||
|
tor_socket_strerror(e));
|
||||||
|
goto err;
|
||||||
|
}
|
||||||
|
|
||||||
|
if (connect(sock,(struct sockaddr *)&target_addr,sizeof(target_addr))<0) {
|
||||||
|
int e = tor_socket_errno(sock);
|
||||||
|
log_fn(severity, LD_NET, "connect() failed: %s", tor_socket_strerror(e));
|
||||||
|
goto err;
|
||||||
|
}
|
||||||
|
|
||||||
|
if (getsockname(sock,(struct sockaddr*)&my_addr, &my_addr_len)) {
|
||||||
|
int e = tor_socket_errno(sock);
|
||||||
|
log_fn(severity, LD_NET, "getsockname() to determine interface failed: %s",
|
||||||
|
tor_socket_strerror(e));
|
||||||
|
goto err;
|
||||||
|
}
|
||||||
|
|
||||||
|
memcpy(addr, &my_addr, sizeof(tor_addr_t));
|
||||||
|
r=0;
|
||||||
|
err:
|
||||||
|
if (sock >= 0)
|
||||||
|
tor_close_socket(sock);
|
||||||
|
return r;
|
||||||
|
}
|
||||||
|
|
||||||
/**
|
/**
|
||||||
* Set *<b>addr</b> to the host-order IPv4 address (if any) of whatever
|
* Set *<b>addr</b> to the host-order IPv4 address (if any) of whatever
|
||||||
* interface connects to the internet. This address should only be used in
|
* interface connects to the internet. This address should only be used in
|
||||||
@ -2093,48 +2636,12 @@ tor_dup_addr(uint32_t addr)
|
|||||||
int
|
int
|
||||||
get_interface_address(int severity, uint32_t *addr)
|
get_interface_address(int severity, uint32_t *addr)
|
||||||
{
|
{
|
||||||
int sock=-1, r=-1;
|
tor_addr_t local_addr;
|
||||||
struct sockaddr_in target_addr, my_addr;
|
int r;
|
||||||
socklen_t my_addr_len = sizeof(my_addr);
|
|
||||||
|
|
||||||
tor_assert(addr);
|
r = get_interface_address6(severity, AF_INET, &local_addr);
|
||||||
*addr = 0;
|
if (r>=0)
|
||||||
|
*addr = IPV4IPh(&local_addr);
|
||||||
sock = tor_open_socket(PF_INET,SOCK_DGRAM,IPPROTO_UDP);
|
|
||||||
if (sock < 0) {
|
|
||||||
int e = tor_socket_errno(-1);
|
|
||||||
log_fn(severity, LD_NET, "unable to create socket: %s",
|
|
||||||
tor_socket_strerror(e));
|
|
||||||
goto err;
|
|
||||||
}
|
|
||||||
|
|
||||||
memset(&target_addr, 0, sizeof(target_addr));
|
|
||||||
target_addr.sin_family = AF_INET;
|
|
||||||
/* discard port */
|
|
||||||
target_addr.sin_port = 9;
|
|
||||||
/* 18.0.0.1 (Don't worry: no packets are sent. We just need a real address
|
|
||||||
* on the internet.) */
|
|
||||||
target_addr.sin_addr.s_addr = htonl(0x12000001);
|
|
||||||
|
|
||||||
if (connect(sock,(struct sockaddr *)&target_addr,sizeof(target_addr))<0) {
|
|
||||||
int e = tor_socket_errno(sock);
|
|
||||||
log_fn(severity, LD_NET, "connect() failed: %s", tor_socket_strerror(e));
|
|
||||||
goto err;
|
|
||||||
}
|
|
||||||
|
|
||||||
if (getsockname(sock, (struct sockaddr*)&my_addr, &my_addr_len)) {
|
|
||||||
int e = tor_socket_errno(sock);
|
|
||||||
log_fn(severity, LD_NET, "getsockname() to determine interface failed: %s",
|
|
||||||
tor_socket_strerror(e));
|
|
||||||
goto err;
|
|
||||||
}
|
|
||||||
|
|
||||||
*addr = ntohl(my_addr.sin_addr.s_addr);
|
|
||||||
|
|
||||||
r=0;
|
|
||||||
err:
|
|
||||||
if (sock >= 0)
|
|
||||||
tor_close_socket(sock);
|
|
||||||
return r;
|
return r;
|
||||||
}
|
}
|
||||||
|
|
||||||
|
|||||||
@ -254,11 +254,25 @@ int parse_addr_and_port_range(const char *s, uint32_t *addr_out,
|
|||||||
uint32_t *mask_out, uint16_t *port_min_out,
|
uint32_t *mask_out, uint16_t *port_min_out,
|
||||||
uint16_t *port_max_out);
|
uint16_t *port_max_out);
|
||||||
int addr_mask_get_bits(uint32_t mask);
|
int addr_mask_get_bits(uint32_t mask);
|
||||||
#define INET_NTOA_BUF_LEN 16
|
|
||||||
int tor_inet_ntoa(const struct in_addr *in, char *buf, size_t buf_len);
|
int tor_inet_ntoa(const struct in_addr *in, char *buf, size_t buf_len);
|
||||||
char *tor_dup_addr(uint32_t addr) ATTR_MALLOC;
|
char *tor_dup_addr(uint32_t addr) ATTR_MALLOC;
|
||||||
int get_interface_address(int severity, uint32_t *addr);
|
int get_interface_address(int severity, uint32_t *addr);
|
||||||
|
|
||||||
|
int get_interface_address6(int severity, sa_family_t family, tor_addr_t *addr);
|
||||||
|
int tor_addr_compare(const tor_addr_t *addr1, const tor_addr_t *addr2);
|
||||||
|
int tor_addr_compare_masked(const tor_addr_t *addr1, const tor_addr_t *addr2,
|
||||||
|
maskbits_t mask);
|
||||||
|
int tor_addr_is_v4(const tor_addr_t *addr);
|
||||||
|
int tor_addr_is_internal(const tor_addr_t *ip, int for_listening) ATTR_PURE;
|
||||||
|
int tor_addr_parse_mask_ports(const char *s,
|
||||||
|
tor_addr_t *addr_out, maskbits_t *mask_out,
|
||||||
|
uint16_t *port_min_out, uint16_t *port_max_out);
|
||||||
|
const char * tor_addr_to_str(char *dest, const tor_addr_t *addr, int len);
|
||||||
|
int tor_addr_from_str(tor_addr_t *addr, const char *src);
|
||||||
|
void tor_addr_copy(tor_addr_t *dest, const tor_addr_t *src);
|
||||||
|
void tor_addr_from_ipv4(tor_addr_t *dest, uint32_t v4addr);
|
||||||
|
int tor_addr_is_null(const tor_addr_t *addr);
|
||||||
|
|
||||||
/* Process helpers */
|
/* Process helpers */
|
||||||
void start_daemon(void);
|
void start_daemon(void);
|
||||||
void finish_daemon(const char *desired_cwd);
|
void finish_daemon(const char *desired_cwd);
|
||||||
|
|||||||
@ -3643,7 +3643,6 @@ add_trusted_dir_server(const char *nickname, const char *address,
|
|||||||
return;
|
return;
|
||||||
}
|
}
|
||||||
hostname = tor_strdup(address);
|
hostname = tor_strdup(address);
|
||||||
a = ntohl(a);
|
|
||||||
}
|
}
|
||||||
|
|
||||||
ent = tor_malloc_zero(sizeof(trusted_dir_server_t));
|
ent = tor_malloc_zero(sizeof(trusted_dir_server_t));
|
||||||
|
|||||||
207
src/or/test.c
207
src/or/test.c
@ -854,13 +854,14 @@ test_util(void)
|
|||||||
buf[0] = (char)1;
|
buf[0] = (char)1;
|
||||||
test_assert(!tor_mem_is_zero(buf, 10));
|
test_assert(!tor_mem_is_zero(buf, 10));
|
||||||
|
|
||||||
/* Test inet_ntoa */
|
/* Test inet_ntop */
|
||||||
{
|
{
|
||||||
char tmpbuf[INET_NTOA_BUF_LEN];
|
char tmpbuf[TOR_ADDR_BUF_LEN];
|
||||||
|
const char *ip = "176.192.208.224";
|
||||||
struct in_addr in;
|
struct in_addr in;
|
||||||
tor_inet_aton("18.244.0.188",&in);
|
tor_inet_pton(AF_INET, ip, &in);
|
||||||
tor_inet_ntoa(&in, tmpbuf, sizeof(tmpbuf));
|
tor_inet_ntop(AF_INET, &in, tmpbuf, sizeof(tmpbuf));
|
||||||
test_streq(tmpbuf, "18.244.0.188");
|
test_streq(tmpbuf, ip);
|
||||||
}
|
}
|
||||||
|
|
||||||
/* Test 'escaped' */
|
/* Test 'escaped' */
|
||||||
@ -1027,12 +1028,67 @@ _test_eq_ip6(struct in6_addr *a, struct in6_addr *b, const char *e1,
|
|||||||
test_eq_ip6(&a1, &a2); \
|
test_eq_ip6(&a1, &a2); \
|
||||||
STMT_END
|
STMT_END
|
||||||
|
|
||||||
|
/*XXXX020 make this macro give useful output on failure, and follow the
|
||||||
|
* conventions of the other test macros. */
|
||||||
|
#define test_internal_ip(a,b) STMT_BEGIN \
|
||||||
|
r = tor_inet_pton(AF_INET6, a, &t1.sa6.sin6_addr); \
|
||||||
|
test_assert(r==1); \
|
||||||
|
t1.sa6.sin6_family = AF_INET6; \
|
||||||
|
r = tor_addr_is_internal(&t1, b); \
|
||||||
|
test_assert(r==1); \
|
||||||
|
STMT_END
|
||||||
|
|
||||||
|
/*XXXX020 make this macro give useful output on failure, and follow the
|
||||||
|
* conventions of the other test macros. */
|
||||||
|
#define test_external_ip(a,b) STMT_BEGIN \
|
||||||
|
r = tor_inet_pton(AF_INET6, a, &t1.sa6.sin6_addr); \
|
||||||
|
test_assert(r==1); \
|
||||||
|
t1.sa6.sin6_family = AF_INET6; \
|
||||||
|
r = tor_addr_is_internal(&t1, b); \
|
||||||
|
test_assert(r==0); \
|
||||||
|
STMT_END
|
||||||
|
|
||||||
|
/*XXXX020 make this macro give useful output on failure, and follow the
|
||||||
|
* conventions of the other test macros. */
|
||||||
|
#define test_addr_convert6(a,b) STMT_BEGIN \
|
||||||
|
tor_inet_pton(AF_INET6, a, &t1.sa6.sin6_addr); \
|
||||||
|
tor_inet_pton(AF_INET6, b, &t2.sa6.sin6_addr); \
|
||||||
|
t1.sa6.sin6_family = AF_INET6; \
|
||||||
|
t2.sa6.sin6_family = AF_INET6; \
|
||||||
|
STMT_END
|
||||||
|
|
||||||
|
/*XXXX020 make this macro give useful output on failure, and follow the
|
||||||
|
* conventions of the other test macros. */
|
||||||
|
#define test_addr_parse(xx) STMT_BEGIN \
|
||||||
|
r=tor_addr_parse_mask_ports(xx, &t1, &mask, &port1, &port2); \
|
||||||
|
t2.sa6.sin6_family = AF_INET6; \
|
||||||
|
p1=tor_inet_ntop(AF_INET6, &t1.sa6.sin6_addr, bug, sizeof(bug)); \
|
||||||
|
STMT_END
|
||||||
|
|
||||||
|
/*XXXX020 make this macro give useful output on failure, and follow the
|
||||||
|
* conventions of the other test macros. */
|
||||||
|
#define test_addr_parse_check(ip1, ip2, ip3, ip4, mm, pt1, pt2) STMT_BEGIN \
|
||||||
|
test_assert(r>=0); \
|
||||||
|
test_eq(htonl(ip1), IN6_ADDR(&t1)->s6_addr32[0]); \
|
||||||
|
test_eq(htonl(ip2), IN6_ADDR(&t1)->s6_addr32[1]); \
|
||||||
|
test_eq(htonl(ip3), IN6_ADDR(&t1)->s6_addr32[2]); \
|
||||||
|
test_eq(htonl(ip4), IN6_ADDR(&t1)->s6_addr32[3]); \
|
||||||
|
test_eq(mask, mm); \
|
||||||
|
test_eq(port1, pt1); \
|
||||||
|
test_eq(port2, pt2); \
|
||||||
|
STMT_END
|
||||||
|
|
||||||
static void
|
static void
|
||||||
test_ip6_helpers(void)
|
test_ip6_helpers(void)
|
||||||
{
|
{
|
||||||
char buf[64];
|
char buf[TOR_ADDR_BUF_LEN], bug[TOR_ADDR_BUF_LEN];
|
||||||
struct in6_addr a1, a2;
|
struct in6_addr a1, a2;
|
||||||
|
tor_addr_t t1, t2;
|
||||||
int r, i;
|
int r, i;
|
||||||
|
uint16_t port1, port2;
|
||||||
|
maskbits_t mask;
|
||||||
|
const char *p1;
|
||||||
|
|
||||||
// struct in_addr b1, b2;
|
// struct in_addr b1, b2;
|
||||||
/* Test tor_inet_ntop and tor_inet_pton: IPv6 */
|
/* Test tor_inet_ntop and tor_inet_pton: IPv6 */
|
||||||
|
|
||||||
@ -1066,8 +1122,13 @@ test_ip6_helpers(void)
|
|||||||
test_ntop6_reduces("0001:0099:BEEF:0006:0123:FFFF:0001:0001",
|
test_ntop6_reduces("0001:0099:BEEF:0006:0123:FFFF:0001:0001",
|
||||||
"1:99:beef:6:123:ffff:1:1");
|
"1:99:beef:6:123:ffff:1:1");
|
||||||
|
|
||||||
test_ntop6_reduces("0:0:0:0:0:0:c0a8:0101", "::192.168.1.1");
|
//test_ntop6_reduces("0:0:0:0:0:0:c0a8:0101", "::192.168.1.1");
|
||||||
test_ntop6_reduces("0:0:0:0:0:ffff:c0a8:0101", "::ffff:192.168.1.1");
|
test_ntop6_reduces("0:0:0:0:0:ffff:c0a8:0101", "::ffff:192.168.1.1");
|
||||||
|
test_ntop6_reduces("002:0:0000:0:3::4", "2::3:0:0:4");
|
||||||
|
test_ntop6_reduces("0:0::3", "::3");
|
||||||
|
test_ntop6_reduces("008:0::0", "8::");
|
||||||
|
test_ntop6_reduces("0:0:0:0:0:ffff::1", "::ffff:0.0.0.1");
|
||||||
|
test_ntop6_reduces("abcd:0:0:0:0:0:7f00::", "abcd::7f00:0");
|
||||||
test_ntop6_reduces("0000:0000:0000:0000:0009:C0A8:0001:0001",
|
test_ntop6_reduces("0000:0000:0000:0000:0009:C0A8:0001:0001",
|
||||||
"::9:c0a8:1:1");
|
"::9:c0a8:1:1");
|
||||||
test_ntop6_reduces("fe80:0000:0000:0000:0202:1111:0001:0001",
|
test_ntop6_reduces("fe80:0000:0000:0000:0202:1111:0001:0001",
|
||||||
@ -1080,7 +1141,7 @@ test_ip6_helpers(void)
|
|||||||
test_pton6_bad("55555::");
|
test_pton6_bad("55555::");
|
||||||
test_pton6_bad("9:-60::");
|
test_pton6_bad("9:-60::");
|
||||||
test_pton6_bad("1:2:33333:4:0002:3::");
|
test_pton6_bad("1:2:33333:4:0002:3::");
|
||||||
// test_pton6_bad("1:2:3333:4:00002:3::"); //XXXX not bad.
|
//test_pton6_bad("1:2:3333:4:00002:3::");// BAD, but glibc doesn't say so.
|
||||||
test_pton6_bad("1:2:3333:4:fish:3::");
|
test_pton6_bad("1:2:3333:4:fish:3::");
|
||||||
test_pton6_bad("1:2:3:4:5:6:7:8:9");
|
test_pton6_bad("1:2:3:4:5:6:7:8:9");
|
||||||
test_pton6_bad("1:2:3:4:5:6:7");
|
test_pton6_bad("1:2:3:4:5:6:7");
|
||||||
@ -1090,6 +1151,130 @@ test_ip6_helpers(void)
|
|||||||
test_pton6_bad("::1.2.3.4.5");
|
test_pton6_bad("::1.2.3.4.5");
|
||||||
test_pton6_bad("99");
|
test_pton6_bad("99");
|
||||||
test_pton6_bad("");
|
test_pton6_bad("");
|
||||||
|
test_pton6_bad("1::2::3:4");
|
||||||
|
test_pton6_bad("a:::b:c");
|
||||||
|
test_pton6_bad(":::a:b:c");
|
||||||
|
test_pton6_bad("a:b:c:::");
|
||||||
|
|
||||||
|
/* test internal checking */
|
||||||
|
test_external_ip("fbff:ffff::2:7", 0);
|
||||||
|
test_internal_ip("fc01::2:7", 0);
|
||||||
|
test_internal_ip("fdff:ffff::f:f", 0);
|
||||||
|
test_external_ip("fe00::3:f", 0);
|
||||||
|
|
||||||
|
test_external_ip("fe7f:ffff::2:7", 0);
|
||||||
|
test_internal_ip("fe80::2:7", 0);
|
||||||
|
test_internal_ip("febf:ffff::f:f", 0);
|
||||||
|
|
||||||
|
test_internal_ip("fec0::2:7:7", 0);
|
||||||
|
test_internal_ip("feff:ffff::e:7:7", 0);
|
||||||
|
test_external_ip("ff00::e:7:7", 0);
|
||||||
|
|
||||||
|
test_internal_ip("::", 0);
|
||||||
|
test_internal_ip("::1", 0);
|
||||||
|
test_internal_ip("::1", 1);
|
||||||
|
test_internal_ip("::", 0);
|
||||||
|
test_external_ip("::", 1);
|
||||||
|
test_external_ip("::2", 0);
|
||||||
|
test_external_ip("2001::", 0);
|
||||||
|
test_external_ip("ffff::", 0);
|
||||||
|
|
||||||
|
test_external_ip("::ffff:0.0.0.0", 1);
|
||||||
|
test_internal_ip("::ffff:0.0.0.0", 0);
|
||||||
|
test_internal_ip("::ffff:0.255.255.255", 0);
|
||||||
|
test_external_ip("::ffff:1.0.0.0", 0);
|
||||||
|
|
||||||
|
test_external_ip("::ffff:9.255.255.255", 0);
|
||||||
|
test_internal_ip("::ffff:10.0.0.0", 0);
|
||||||
|
test_internal_ip("::ffff:10.255.255.255", 0);
|
||||||
|
test_external_ip("::ffff:11.0.0.0", 0);
|
||||||
|
|
||||||
|
test_external_ip("::ffff:126.255.255.255", 0);
|
||||||
|
test_internal_ip("::ffff:127.0.0.0", 0);
|
||||||
|
test_internal_ip("::ffff:127.255.255.255", 0);
|
||||||
|
test_external_ip("::ffff:128.0.0.0", 0);
|
||||||
|
|
||||||
|
test_external_ip("::ffff:172.15.255.255", 0);
|
||||||
|
test_internal_ip("::ffff:172.16.0.0", 0);
|
||||||
|
test_internal_ip("::ffff:172.31.255.255", 0);
|
||||||
|
test_external_ip("::ffff:172.32.0.0", 0);
|
||||||
|
|
||||||
|
test_external_ip("::ffff:192.167.255.255", 0);
|
||||||
|
test_internal_ip("::ffff:192.168.0.0", 0);
|
||||||
|
test_internal_ip("::ffff:192.168.255.255", 0);
|
||||||
|
test_external_ip("::ffff:192.169.0.0", 0);
|
||||||
|
|
||||||
|
test_external_ip("::ffff:169.253.255.255", 0);
|
||||||
|
test_internal_ip("::ffff:169.254.0.0", 0);
|
||||||
|
test_internal_ip("::ffff:169.254.255.255", 0);
|
||||||
|
test_external_ip("::ffff:169.255.0.0", 0);
|
||||||
|
|
||||||
|
/* tor_addr_compare(tor_addr_t x2) */
|
||||||
|
test_addr_convert6("ffff::", "ffff::0");
|
||||||
|
test_assert(tor_addr_compare(&t1, &t2) == 0);
|
||||||
|
test_addr_convert6("0::3:2:1", "0::ffff:0.3.2.1");
|
||||||
|
test_assert(tor_addr_compare(&t1, &t2) > 0);
|
||||||
|
test_addr_convert6("0::2:2:1", "0::ffff:0.3.2.1");
|
||||||
|
test_assert(tor_addr_compare(&t1, &t2) > 0);
|
||||||
|
test_addr_convert6("0::ffff:0.3.2.1", "0::0:0:0");
|
||||||
|
test_assert(tor_addr_compare(&t1, &t2) < 0);
|
||||||
|
test_addr_convert6("0::ffff:5.2.2.1", "::ffff:6.0.0.0");
|
||||||
|
test_assert(tor_addr_compare(&t1, &t2) < 0); /* XXXX wrong. */
|
||||||
|
tor_addr_parse_mask_ports("[::ffff:2.3.4.5]", &t1, NULL, NULL, NULL);
|
||||||
|
tor_addr_parse_mask_ports("2.3.4.5", &t2, NULL, NULL, NULL);
|
||||||
|
test_assert(tor_addr_compare(&t1, &t2) == 0);
|
||||||
|
tor_addr_parse_mask_ports("[::ffff:2.3.4.4]", &t1, NULL, NULL, NULL);
|
||||||
|
tor_addr_parse_mask_ports("2.3.4.5", &t2, NULL, NULL, NULL);
|
||||||
|
test_assert(tor_addr_compare(&t1, &t2) < 0);
|
||||||
|
|
||||||
|
/* XXXX020 test compare_masked */
|
||||||
|
|
||||||
|
/* test tor_addr_parse_mask_ports */
|
||||||
|
test_addr_parse("[::f]/17:47-95");
|
||||||
|
test_addr_parse_check(0, 0, 0, 0x0000000f, 17, 47, 95);
|
||||||
|
//test_addr_parse("[::fefe:4.1.1.7/120]:999-1000");
|
||||||
|
//test_addr_parse_check("::fefe:401:107", 120, 999, 1000);
|
||||||
|
test_addr_parse("[::ffff:4.1.1.7]/120:443");
|
||||||
|
test_addr_parse_check(0, 0, 0x0000ffff, 0x04010107, 120, 443, 443);
|
||||||
|
test_addr_parse("[abcd:2::44a:0]:2-65000");
|
||||||
|
test_addr_parse_check(0xabcd0002, 0, 0, 0x044a0000, 128, 2, 65000);
|
||||||
|
|
||||||
|
r=tor_addr_parse_mask_ports("[fefef::]/112", &t1, NULL, NULL, NULL);
|
||||||
|
test_assert(r == -1);
|
||||||
|
r=tor_addr_parse_mask_ports("efef::/112", &t1, NULL, NULL, NULL);
|
||||||
|
test_assert(r == -1);
|
||||||
|
r=tor_addr_parse_mask_ports("[f:f:f:f:f:f:f:f::]", &t1, NULL, NULL, NULL);
|
||||||
|
test_assert(r == -1);
|
||||||
|
r=tor_addr_parse_mask_ports("[::f:f:f:f:f:f:f:f]", &t1, NULL, NULL, NULL);
|
||||||
|
test_assert(r == -1);
|
||||||
|
r=tor_addr_parse_mask_ports("[f:f:f:f:f:f:f:f:f]", &t1, NULL, NULL, NULL);
|
||||||
|
test_assert(r == -1);
|
||||||
|
/* Test for V4-mapped address with mask < 96. (arguably not valid) */
|
||||||
|
r=tor_addr_parse_mask_ports("[::ffff:1.1.2.2/33]", &t1, &mask, NULL, NULL);
|
||||||
|
test_assert(r == -1);
|
||||||
|
r=tor_addr_parse_mask_ports("1.1.2.2/33", &t1, &mask, NULL, NULL);
|
||||||
|
test_assert(r == -1);
|
||||||
|
r=tor_addr_parse_mask_ports("1.1.2.2/31", &t1, &mask, NULL, NULL);
|
||||||
|
test_assert(r == AF_INET);
|
||||||
|
r=tor_addr_parse_mask_ports("[efef::]/112", &t1, &mask, &port1, &port2);
|
||||||
|
test_assert(r == AF_INET6);
|
||||||
|
test_assert(port1 == 1);
|
||||||
|
test_assert(port2 == 65535);
|
||||||
|
|
||||||
|
/* make sure inet address lengths >= max */
|
||||||
|
test_assert(INET_NTOA_BUF_LEN >= sizeof("255.255.255.255"));
|
||||||
|
test_assert(TOR_ADDR_BUF_LEN >=
|
||||||
|
sizeof("ffff:ffff:ffff:ffff:ffff:ffff:255.255.255.255"));
|
||||||
|
|
||||||
|
test_assert(sizeof(tor_addr_t) >= sizeof(struct sockaddr_in6));
|
||||||
|
|
||||||
|
/* get interface addresses */
|
||||||
|
r = get_interface_address6(0, AF_INET, &t1);
|
||||||
|
i = get_interface_address6(0, AF_INET6, &t2);
|
||||||
|
tor_inet_ntop(AF_INET, &t1.sa.sin_addr, buf, sizeof(buf));
|
||||||
|
printf("\nv4 address: %s (family=%i)", buf, IN_FAMILY(&t1));
|
||||||
|
tor_inet_ntop(AF_INET6, &t2.sa6.sin6_addr, buf, sizeof(buf));
|
||||||
|
printf("\nv6 address: %s (family=%i)", buf, IN_FAMILY(&t2));
|
||||||
}
|
}
|
||||||
|
|
||||||
static void
|
static void
|
||||||
@ -1915,7 +2100,7 @@ test_dir_format(void)
|
|||||||
ex1.next = &ex2;
|
ex1.next = &ex2;
|
||||||
ex2.policy_type = ADDR_POLICY_REJECT;
|
ex2.policy_type = ADDR_POLICY_REJECT;
|
||||||
ex2.addr = 18 << 24;
|
ex2.addr = 18 << 24;
|
||||||
ex2.msk = 0xFF000000u;
|
ex2.msk = 0xff000000u;
|
||||||
ex2.prt_min = ex2.prt_max = 24;
|
ex2.prt_min = ex2.prt_max = 24;
|
||||||
ex2.next = NULL;
|
ex2.next = NULL;
|
||||||
r2.address = tor_strdup("1.1.1.1");
|
r2.address = tor_strdup("1.1.1.1");
|
||||||
@ -2526,12 +2711,14 @@ static void
|
|||||||
test_policies(void)
|
test_policies(void)
|
||||||
{
|
{
|
||||||
addr_policy_t *policy, *policy2;
|
addr_policy_t *policy, *policy2;
|
||||||
|
tor_addr_t tar;
|
||||||
config_line_t line;
|
config_line_t line;
|
||||||
|
|
||||||
policy = router_parse_addr_policy_from_string("reject 192.168.0.0/16:*",-1);
|
policy = router_parse_addr_policy_from_string("reject 192.168.0.0/16:*",-1);
|
||||||
test_eq(NULL, policy->next);
|
test_eq(NULL, policy->next);
|
||||||
test_eq(ADDR_POLICY_REJECT, policy->policy_type);
|
test_eq(ADDR_POLICY_REJECT, policy->policy_type);
|
||||||
test_eq(0xc0a80000u, policy->addr);
|
tor_addr_from_ipv4(&tar, 0xc0a80000u);
|
||||||
|
test_assert(policy->addr == 0xc0a80000u);
|
||||||
test_eq(0xffff0000u, policy->msk);
|
test_eq(0xffff0000u, policy->msk);
|
||||||
test_eq(1, policy->prt_min);
|
test_eq(1, policy->prt_min);
|
||||||
test_eq(65535, policy->prt_max);
|
test_eq(65535, policy->prt_max);
|
||||||
|
|||||||
Loading…
Reference in New Issue
Block a user