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-rw-r--r--src/or/buffers.c178
1 files changed, 93 insertions, 85 deletions
diff --git a/src/or/buffers.c b/src/or/buffers.c
index 0a1c3de8d..71a018595 100644
--- a/src/or/buffers.c
+++ b/src/or/buffers.c
@@ -88,7 +88,7 @@ buf_normalize(buf_t *buf)
} else {
char *newmem, *oldmem;
size_t sz = (buf->mem+buf->len)-buf->cur;
- warn(LD_BUG, "Unexpected non-normalized buffer.");
+ log_warn(LD_BUG, "Unexpected non-normalized buffer.");
newmem = GUARDED_MEM(tor_malloc(ALLOC_LEN(buf->len)));
SET_GUARDS(newmem, buf->len);
memcpy(newmem, buf->cur, sz);
@@ -262,8 +262,8 @@ buf_ensure_capacity(buf_t *buf, size_t capacity)
while (new_len < capacity)
new_len *= 2;
/* Resize the buffer. */
- debug(LD_MM,"Growing buffer from %d to %d bytes.",
- (int)buf->len, (int)new_len);
+ log_debug(LD_MM,"Growing buffer from %d to %d bytes.",
+ (int)buf->len, (int)new_len);
buf_resize(buf,new_len);
return 0;
}
@@ -287,8 +287,8 @@ buf_shrink(buf_t *buf)
if (new_len == buf->len)
return;
- debug(LD_MM,"Shrinking buffer from %d to %d bytes.",
- (int)buf->len, (int)new_len);
+ log_debug(LD_MM,"Shrinking buffer from %d to %d bytes.",
+ (int)buf->len, (int)new_len);
buf_resize(buf, new_len);
}
@@ -407,7 +407,7 @@ read_to_buf_impl(int s, size_t at_most, buf_t *buf,
}
return 0; /* would block. */
} else if (read_result == 0) {
- debug(LD_NET,"Encountered eof");
+ log_debug(LD_NET,"Encountered eof");
*reached_eof = 1;
return 0;
} else { /* we read some bytes */
@@ -415,8 +415,8 @@ read_to_buf_impl(int s, size_t at_most, buf_t *buf,
buf_total_used += read_result;
if (buf->datalen > buf->highwater)
buf->highwater = buf->datalen;
- debug(LD_NET,"Read %d bytes. %d on inbuf.",read_result,
- (int)buf->datalen);
+ log_debug(LD_NET,"Read %d bytes. %d on inbuf.",read_result,
+ (int)buf->datalen);
return read_result;
}
}
@@ -481,9 +481,9 @@ read_to_buf_tls_impl(tor_tls_t *tls, size_t at_most, buf_t *buf, char *next)
{
int r;
- debug(LD_NET,"before: %d on buf, %d pending, at_most %d.",
- (int)buf_datalen(buf), (int)tor_tls_get_pending_bytes(tls),
- (int)at_most);
+ log_debug(LD_NET,"before: %d on buf, %d pending, at_most %d.",
+ (int)buf_datalen(buf), (int)tor_tls_get_pending_bytes(tls),
+ (int)at_most);
r = tor_tls_read(tls, next, at_most);
if (r<0)
return r;
@@ -491,8 +491,8 @@ read_to_buf_tls_impl(tor_tls_t *tls, size_t at_most, buf_t *buf, char *next)
buf_total_used += r;
if (buf->datalen > buf->highwater)
buf->highwater = buf->datalen;
- debug(LD_NET,"Read %d bytes. %d on inbuf; %d pending",r,
- (int)buf->datalen,(int)tor_tls_get_pending_bytes(tls));
+ log_debug(LD_NET,"Read %d bytes. %d on inbuf; %d pending",r,
+ (int)buf->datalen,(int)tor_tls_get_pending_bytes(tls));
return r;
}
@@ -525,9 +525,9 @@ read_to_buf_tls(tor_tls_t *tls, size_t at_most, buf_t *buf)
tor_assert(tls);
assert_buf_ok(buf);
- debug(LD_NET,"start: %d on buf, %d pending, at_most %d.",
- (int)buf_datalen(buf), (int)tor_tls_get_pending_bytes(tls),
- (int)at_most);
+ log_debug(LD_NET,"start: %d on buf, %d pending, at_most %d.",
+ (int)buf_datalen(buf), (int)tor_tls_get_pending_bytes(tls),
+ (int)at_most);
if (buf_ensure_capacity(buf, at_most+buf->datalen))
return TOR_TLS_ERROR;
@@ -575,7 +575,7 @@ flush_buf_impl(int s, buf_t *buf, size_t sz, size_t *buf_flushlen)
if (!ERRNO_IS_EAGAIN(e)) { /* it's a real error */
return -1;
}
- debug(LD_NET,"write() would block, returning.");
+ log_debug(LD_NET,"write() would block, returning.");
return 0;
} else {
*buf_flushlen -= write_result;
@@ -612,8 +612,8 @@ flush_buf(int s, buf_t *buf, size_t sz, size_t *buf_flushlen)
r = flush_buf_impl(s, buf, flushlen0, buf_flushlen);
check();
- debug(LD_NET,"%d: flushed %d bytes, %d ready to flush, %d remain.",
- s,r,(int)*buf_flushlen,(int)buf->datalen);
+ log_debug(LD_NET,"%d: flushed %d bytes, %d ready to flush, %d remain.",
+ s,r,(int)*buf_flushlen,(int)buf->datalen);
if (r < 0 || (size_t)r < flushlen0)
return r; /* Error, or can't flush any more now. */
flushed = r;
@@ -622,8 +622,8 @@ flush_buf(int s, buf_t *buf, size_t sz, size_t *buf_flushlen)
tor_assert(buf->cur == buf->mem);
r = flush_buf_impl(s, buf, flushlen1, buf_flushlen);
check();
- debug(LD_NET,"%d: flushed %d bytes, %d ready to flush, %d remain.",
- s,r,(int)*buf_flushlen,(int)buf->datalen);
+ log_debug(LD_NET,"%d: flushed %d bytes, %d ready to flush, %d remain.",
+ s,r,(int)*buf_flushlen,(int)buf->datalen);
if (r<0)
return r;
flushed += r;
@@ -647,8 +647,8 @@ flush_buf_tls_impl(tor_tls_t *tls, buf_t *buf, size_t sz, size_t *buf_flushlen)
}
*buf_flushlen -= r;
buf_remove_from_front(buf, r);
- debug(LD_NET,"flushed %d bytes, %d ready to flush, %d remain.",
- r,(int)*buf_flushlen,(int)buf->datalen);
+ log_debug(LD_NET,"flushed %d bytes, %d ready to flush, %d remain.",
+ r,(int)*buf_flushlen,(int)buf->datalen);
return r;
}
@@ -709,8 +709,8 @@ write_to_buf(const char *string, size_t string_len, buf_t *buf)
/* assert_buf_ok(buf); */
if (buf_ensure_capacity(buf, buf->datalen+string_len)) {
- warn(LD_MM, "buflen too small, can't hold %d bytes.",
- (int)(buf->datalen+string_len));
+ log_warn(LD_MM, "buflen too small, can't hold %d bytes.",
+ (int)(buf->datalen+string_len));
return -1;
}
@@ -729,8 +729,8 @@ write_to_buf(const char *string, size_t string_len, buf_t *buf)
}
if (buf->datalen > buf->highwater)
buf->highwater = buf->datalen;
- debug(LD_NET,"added %d bytes to buf (now %d total).",
- (int)string_len, (int)buf->datalen);
+ log_debug(LD_NET,"added %d bytes to buf (now %d total).",
+ (int)string_len, (int)buf->datalen);
check();
return buf->datalen;
}
@@ -812,28 +812,28 @@ fetch_from_buf_http(buf_t *buf,
buf_normalize(buf);
if (buf_nul_terminate(buf)<0) {
- warn(LD_BUG,"Couldn't nul-terminate buffer");
+ log_warn(LD_BUG,"Couldn't nul-terminate buffer");
return -1;
}
headers = buf->cur;
body = strstr(headers,"\r\n\r\n");
if (!body) {
- debug(LD_HTTP,"headers not all here yet.");
+ log_debug(LD_HTTP,"headers not all here yet.");
return 0;
}
body += 4; /* Skip the the CRLFCRLF */
headerlen = body-headers; /* includes the CRLFCRLF */
bodylen = buf->datalen - headerlen;
- debug(LD_HTTP,"headerlen %d, bodylen %d.", (int)headerlen, (int)bodylen);
+ log_debug(LD_HTTP,"headerlen %d, bodylen %d.", (int)headerlen, (int)bodylen);
if (max_headerlen <= headerlen) {
- warn(LD_HTTP,"headerlen %d larger than %d. Failing.",
- (int)headerlen, (int)max_headerlen-1);
+ log_warn(LD_HTTP,"headerlen %d larger than %d. Failing.",
+ (int)headerlen, (int)max_headerlen-1);
return -1;
}
if (max_bodylen <= bodylen) {
- warn(LD_HTTP,"bodylen %d larger than %d. Failing.",
- (int)bodylen, (int)max_bodylen-1);
+ log_warn(LD_HTTP,"bodylen %d larger than %d. Failing.",
+ (int)bodylen, (int)max_bodylen-1);
return -1;
}
@@ -843,22 +843,22 @@ fetch_from_buf_http(buf_t *buf,
int i;
i = atoi(p+strlen(CONTENT_LENGTH));
if (i < 0) {
- warn(LD_PROTOCOL, "Content-Length is less than zero; it looks like "
- "someone is trying to crash us.");
+ log_warn(LD_PROTOCOL, "Content-Length is less than zero; it looks like "
+ "someone is trying to crash us.");
return -1;
}
contentlen = i;
/* if content-length is malformed, then our body length is 0. fine. */
- debug(LD_HTTP,"Got a contentlen of %d.",(int)contentlen);
+ log_debug(LD_HTTP,"Got a contentlen of %d.",(int)contentlen);
if (bodylen < contentlen) {
if (!force_complete) {
- debug(LD_HTTP,"body not all here yet.");
+ log_debug(LD_HTTP,"body not all here yet.");
return 0; /* not all there yet */
}
}
if (bodylen > contentlen) {
bodylen = contentlen;
- debug(LD_HTTP,"bodylen reduced to %d.",(int)bodylen);
+ log_debug(LD_HTTP,"bodylen reduced to %d.",(int)bodylen);
}
}
/* all happy. copy into the appropriate places, and return 1 */
@@ -929,8 +929,9 @@ fetch_from_buf_socks(buf_t *buf, socks_request_t *req, int log_sockstype)
if (buf->datalen < 2u+nummethods)
return 0;
if (!nummethods || !memchr(buf->cur+2, 0, nummethods)) {
- warn(LD_APP,
- "socks5: offered methods don't include 'no auth'. Rejecting.");
+ log_warn(LD_APP,
+ "socks5: offered methods don't include 'no auth'. "
+ "Rejecting.");
req->replylen = 2; /* 2 bytes of response */
req->reply[0] = 5;
req->reply[1] = '\xFF'; /* reject all methods */
@@ -942,24 +943,24 @@ fetch_from_buf_socks(buf_t *buf, socks_request_t *req, int log_sockstype)
req->reply[0] = 5; /* socks5 reply */
req->reply[1] = SOCKS5_SUCCEEDED;
req->socks_version = 5; /* remember we've already negotiated auth */
- debug(LD_APP,"socks5: accepted method 0");
+ log_debug(LD_APP,"socks5: accepted method 0");
return 0;
}
/* we know the method; read in the request */
- debug(LD_APP,"socks5: checking request");
+ log_debug(LD_APP,"socks5: checking request");
if (buf->datalen < 8) /* basic info plus >=2 for addr plus 2 for port */
return 0; /* not yet */
req->command = (unsigned char) *(buf->cur+1);
if (req->command != SOCKS_COMMAND_CONNECT &&
req->command != SOCKS_COMMAND_RESOLVE) {
/* not a connect or resolve? we don't support it. */
- warn(LD_APP,"socks5: command %d not recognized. Rejecting.",
- req->command);
+ log_warn(LD_APP,"socks5: command %d not recognized. Rejecting.",
+ req->command);
return -1;
}
switch (*(buf->cur+3)) { /* address type */
case 1: /* IPv4 address */
- debug(LD_APP,"socks5: ipv4 address type");
+ log_debug(LD_APP,"socks5: ipv4 address type");
if (buf->datalen < 10) /* ip/port there? */
return 0; /* not yet */
@@ -967,9 +968,10 @@ fetch_from_buf_socks(buf_t *buf, socks_request_t *req, int log_sockstype)
in.s_addr = htonl(destip);
tor_inet_ntoa(&in,tmpbuf,sizeof(tmpbuf));
if (strlen(tmpbuf)+1 > MAX_SOCKS_ADDR_LEN) {
- warn(LD_APP,
- "socks5 IP takes %d bytes, which doesn't fit in %d. Rejecting.",
- (int)strlen(tmpbuf)+1,(int)MAX_SOCKS_ADDR_LEN);
+ log_warn(LD_APP,
+ "socks5 IP takes %d bytes, which doesn't fit in %d. "
+ "Rejecting.",
+ (int)strlen(tmpbuf)+1,(int)MAX_SOCKS_ADDR_LEN);
return -1;
}
strlcpy(req->address,tmpbuf,sizeof(req->address));
@@ -977,23 +979,25 @@ fetch_from_buf_socks(buf_t *buf, socks_request_t *req, int log_sockstype)
buf_remove_from_front(buf, 10);
if (!address_is_in_virtual_range(req->address) &&
!have_warned_about_unsafe_socks) {
- warn(LD_APP,"Your application (using socks5 on port %d) is giving "
- "Tor only an IP address. Applications that do DNS resolves "
- "themselves may leak information. Consider using Socks4A "
- "(e.g. via privoxy or socat) instead. For more information, "
- "please see http://wiki.noreply.org/noreply/TheOnionRouter/"
- "TorFAQ#SOCKSAndDNS", req->port);
+ log_warn(LD_APP,
+ "Your application (using socks5 on port %d) is giving "
+ "Tor only an IP address. Applications that do DNS resolves "
+ "themselves may leak information. Consider using Socks4A "
+ "(e.g. via privoxy or socat) instead. For more information, "
+ "please see http://wiki.noreply.org/noreply/TheOnionRouter/"
+ "TorFAQ#SOCKSAndDNS", req->port);
// have_warned_about_unsafe_socks = 1; // (for now, warn every time)
}
return 1;
case 3: /* fqdn */
- debug(LD_APP,"socks5: fqdn address type");
+ log_debug(LD_APP,"socks5: fqdn address type");
len = (unsigned char)*(buf->cur+4);
if (buf->datalen < 7u+len) /* addr/port there? */
return 0; /* not yet */
if (len+1 > MAX_SOCKS_ADDR_LEN) {
- warn(LD_APP, "socks5 hostname is %d bytes, which doesn't fit in "
- "%d. Rejecting.", len+1,MAX_SOCKS_ADDR_LEN);
+ log_warn(LD_APP,
+ "socks5 hostname is %d bytes, which doesn't fit in "
+ "%d. Rejecting.", len+1,MAX_SOCKS_ADDR_LEN);
return -1;
}
memcpy(req->address,buf->cur+5,len);
@@ -1001,13 +1005,14 @@ fetch_from_buf_socks(buf_t *buf, socks_request_t *req, int log_sockstype)
req->port = ntohs(get_uint16(buf->cur+5+len));
buf_remove_from_front(buf, 5+len+2);
if (log_sockstype)
- notice(LD_APP, "Your application (using socks5 on port %d) gave "
- "Tor a hostname, which means Tor will do the DNS resolve "
- "for you. This is good.", req->port);
+ log_notice(LD_APP,
+ "Your application (using socks5 on port %d) gave "
+ "Tor a hostname, which means Tor will do the DNS resolve "
+ "for you. This is good.", req->port);
return 1;
default: /* unsupported */
- warn(LD_APP,"socks5: unsupported address type %d. Rejecting.",
- *(buf->cur+3));
+ log_warn(LD_APP,"socks5: unsupported address type %d. Rejecting.",
+ *(buf->cur+3));
return -1;
}
tor_assert(0);
@@ -1023,34 +1028,35 @@ fetch_from_buf_socks(buf_t *buf, socks_request_t *req, int log_sockstype)
if (req->command != SOCKS_COMMAND_CONNECT &&
req->command != SOCKS_COMMAND_RESOLVE) {
/* not a connect or resolve? we don't support it. */
- warn(LD_APP,"socks4: command %d not recognized. Rejecting.",
- req->command);
+ log_warn(LD_APP,"socks4: command %d not recognized. Rejecting.",
+ req->command);
return -1;
}
req->port = ntohs(*(uint16_t*)(buf->cur+2));
destip = ntohl(*(uint32_t*)(buf->mem+4));
if ((!req->port && req->command!=SOCKS_COMMAND_RESOLVE) || !destip) {
- warn(LD_APP,"socks4: Port or DestIP is zero. Rejecting.");
+ log_warn(LD_APP,"socks4: Port or DestIP is zero. Rejecting.");
return -1;
}
if (destip >> 8) {
- debug(LD_APP,"socks4: destip not in form 0.0.0.x.");
+ log_debug(LD_APP,"socks4: destip not in form 0.0.0.x.");
in.s_addr = htonl(destip);
tor_inet_ntoa(&in,tmpbuf,sizeof(tmpbuf));
if (strlen(tmpbuf)+1 > MAX_SOCKS_ADDR_LEN) {
- debug(LD_APP,"socks4 addr (%d bytes) too long. Rejecting.",
- (int)strlen(tmpbuf));
+ log_debug(LD_APP,"socks4 addr (%d bytes) too long. Rejecting.",
+ (int)strlen(tmpbuf));
return -1;
}
- debug(LD_APP,"socks4: successfully read destip (%s)",safe_str(tmpbuf));
+ log_debug(LD_APP,
+ "socks4: successfully read destip (%s)",safe_str(tmpbuf));
socks4_prot = socks4;
}
next = memchr(buf->cur+SOCKS4_NETWORK_LEN, 0,
buf->datalen-SOCKS4_NETWORK_LEN);
if (!next) {
- debug(LD_APP,"socks4: Username not here yet.");
+ log_debug(LD_APP,"socks4: Username not here yet.");
return 0;
}
tor_assert(next < buf->cur+buf->datalen);
@@ -1059,34 +1065,36 @@ fetch_from_buf_socks(buf_t *buf, socks_request_t *req, int log_sockstype)
if (socks4_prot != socks4a &&
!address_is_in_virtual_range(tmpbuf) &&
!have_warned_about_unsafe_socks) {
- warn(LD_APP,"Your application (using socks4 on port %d) is giving Tor "
- "only an IP address. Applications that do DNS resolves "
- "themselves may leak information. Consider using Socks4A (e.g. "
- "via privoxy or socat) instead.", req->port);
+ log_warn(LD_APP,
+ "Your application (using socks4 on port %d) is giving Tor "
+ "only an IP address. Applications that do DNS resolves "
+ "themselves may leak information. Consider using Socks4A "
+ "(e.g. via privoxy or socat) instead.", req->port);
// have_warned_about_unsafe_socks = 1; // (for now, warn every time)
}
if (socks4_prot == socks4a) {
if (next+1 == buf->cur+buf->datalen) {
- debug(LD_APP,"socks4: No part of destaddr here yet.");
+ log_debug(LD_APP,"socks4: No part of destaddr here yet.");
return 0;
}
startaddr = next+1;
next = memchr(startaddr, 0, buf->cur+buf->datalen-startaddr);
if (!next) {
- debug(LD_APP,"socks4: Destaddr not all here yet.");
+ log_debug(LD_APP,"socks4: Destaddr not all here yet.");
return 0;
}
if (MAX_SOCKS_ADDR_LEN <= next-startaddr) {
- warn(LD_APP,"socks4: Destaddr too long. Rejecting.");
+ log_warn(LD_APP,"socks4: Destaddr too long. Rejecting.");
return -1;
}
tor_assert(next < buf->cur+buf->datalen);
if (log_sockstype)
- notice(LD_APP, "Your application (using socks4a on port %d) gave "
- "Tor a hostname, which means Tor will do the DNS resolve "
- "for you. This is good.", req->port);
+ log_notice(LD_APP,
+ "Your application (using socks4a on port %d) gave "
+ "Tor a hostname, which means Tor will do the DNS resolve "
+ "for you. This is good.", req->port);
}
- debug(LD_APP,"socks4: Everything is here. Success.");
+ log_debug(LD_APP,"socks4: Everything is here. Success.");
strlcpy(req->address, startaddr ? startaddr : tmpbuf,
sizeof(req->address));
/* next points to the final \0 on inbuf */
@@ -1125,9 +1133,9 @@ fetch_from_buf_socks(buf_t *buf, socks_request_t *req, int log_sockstype)
req->replylen = strlen(req->reply)+1;
/* fall through */
default: /* version is not socks4 or socks5 */
- warn(LD_APP,
- "Socks version %d not recognized. (Tor is not an http proxy.)",
- *(buf->cur));
+ log_warn(LD_APP,
+ "Socks version %d not recognized. (Tor is not an http proxy.)",
+ *(buf->cur));
return -1;
}
}
generated by cgit v1.2.3 (git 2.45.0) at 2024-11-16 22:33:26 +0000