Hakase/nginx-build
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Latest update - 7591

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Hakase
2019-10-24 21:00:01 +09:00
parent 7451bdd624
commit d12bc8b656
8 changed files with 243 additions and 101 deletions
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src/core/ngx_proxy_protocol.c
+158 -79
View File
@@ -40,6 +40,10 @@ typedef struct {
} ngx_proxy_protocol_inet6_addrs_t;
static u_char *ngx_proxy_protocol_read_addr(ngx_connection_t *c, u_char *p,
u_char *last, ngx_str_t *addr);
static u_char *ngx_proxy_protocol_read_port(u_char *p, u_char *last,
in_port_t *port, u_char sep);
static u_char *ngx_proxy_protocol_v2_read(ngx_connection_t *c, u_char *buf,
u_char *last);
@@ -47,9 +51,9 @@ static u_char *ngx_proxy_protocol_v2_read(ngx_connection_t *c, u_char *buf,
u_char *
ngx_proxy_protocol_read(ngx_connection_t *c, u_char *buf, u_char *last)
{
size_t len;
u_char ch, *p, *addr, *port;
ngx_int_t n;
size_t len;
u_char *p;
ngx_proxy_protocol_t *pp;
static const u_char signature[] = "\r\n\r\n\0\r\nQUIT\n";
@@ -83,73 +87,47 @@ ngx_proxy_protocol_read(ngx_connection_t *c, u_char *buf, u_char *last)
}
p += 5;
addr = p;
for ( ;; ) {
if (p == last) {
goto invalid;
}
ch = *p++;
if (ch == ' ') {
break;
}
if (ch != ':' && ch != '.'
&& (ch < 'a' || ch > 'f')
&& (ch < 'A' || ch > 'F')
&& (ch < '0' || ch > '9'))
{
goto invalid;
}
}
len = p - addr - 1;
c->proxy_protocol_addr.data = ngx_pnalloc(c->pool, len);
if (c->proxy_protocol_addr.data == NULL) {
pp = ngx_pcalloc(c->pool, sizeof(ngx_proxy_protocol_t));
if (pp == NULL) {
return NULL;
}
ngx_memcpy(c->proxy_protocol_addr.data, addr, len);
c->proxy_protocol_addr.len = len;
for ( ;; ) {
if (p == last) {
goto invalid;
}
if (*p++ == ' ') {
break;
}
}
port = p;
for ( ;; ) {
if (p == last) {
goto invalid;
}
if (*p++ == ' ') {
break;
}
}
len = p - port - 1;
n = ngx_atoi(port, len);
if (n < 0 || n > 65535) {
p = ngx_proxy_protocol_read_addr(c, p, last, &pp->src_addr);
if (p == NULL) {
goto invalid;
}
c->proxy_protocol_port = (in_port_t) n;
p = ngx_proxy_protocol_read_addr(c, p, last, &pp->dst_addr);
if (p == NULL) {
goto invalid;
}
ngx_log_debug2(NGX_LOG_DEBUG_CORE, c->log, 0,
"PROXY protocol address: %V %d", &c->proxy_protocol_addr,
c->proxy_protocol_port);
p = ngx_proxy_protocol_read_port(p, last, &pp->src_port, ' ');
if (p == NULL) {
goto invalid;
}
p = ngx_proxy_protocol_read_port(p, last, &pp->dst_port, CR);
if (p == NULL) {
goto invalid;
}
if (p == last) {
goto invalid;
}
if (*p++ != LF) {
goto invalid;
}
ngx_log_debug4(NGX_LOG_DEBUG_CORE, c->log, 0,
"PROXY protocol src: %V %d, dst: %V %d",
&pp->src_addr, pp->src_port, &pp->dst_addr, pp->dst_port);
c->proxy_protocol = pp;
return p;
skip:
@@ -168,6 +146,82 @@ invalid:
}
static u_char *
ngx_proxy_protocol_read_addr(ngx_connection_t *c, u_char *p, u_char *last,
ngx_str_t *addr)
{
size_t len;
u_char ch, *pos;
pos = p;
for ( ;; ) {
if (p == last) {
return NULL;
}
ch = *p++;
if (ch == ' ') {
break;
}
if (ch != ':' && ch != '.'
&& (ch < 'a' || ch > 'f')
&& (ch < 'A' || ch > 'F')
&& (ch < '0' || ch > '9'))
{
return NULL;
}
}
len = p - pos - 1;
addr->data = ngx_pnalloc(c->pool, len);
if (addr->data == NULL) {
return NULL;
}
ngx_memcpy(addr->data, pos, len);
addr->len = len;
return p;
}
static u_char *
ngx_proxy_protocol_read_port(u_char *p, u_char *last, in_port_t *port,
u_char sep)
{
size_t len;
u_char *pos;
ngx_int_t n;
pos = p;
for ( ;; ) {
if (p == last) {
return NULL;
}
if (*p++ == sep) {
break;
}
}
len = p - pos - 1;
n = ngx_atoi(pos, len);
if (n < 0 || n > 65535) {
return NULL;
}
*port = (in_port_t) n;
return p;
}
u_char *
ngx_proxy_protocol_write(ngx_connection_t *c, u_char *buf, u_char *last)
{
@@ -219,7 +273,8 @@ ngx_proxy_protocol_v2_read(ngx_connection_t *c, u_char *buf, u_char *last)
size_t len;
socklen_t socklen;
ngx_uint_t version, command, family, transport;
ngx_sockaddr_t sockaddr;
ngx_sockaddr_t src_sockaddr, dst_sockaddr;
ngx_proxy_protocol_t *pp;
ngx_proxy_protocol_header_t *header;
ngx_proxy_protocol_inet_addrs_t *in;
#if (NGX_HAVE_INET6)
@@ -266,6 +321,11 @@ ngx_proxy_protocol_v2_read(ngx_connection_t *c, u_char *buf, u_char *last)
return end;
}
pp = ngx_pcalloc(c->pool, sizeof(ngx_proxy_protocol_t));
if (pp == NULL) {
return NULL;
}
family = header->family_transport >> 4;
switch (family) {
@@ -278,11 +338,16 @@ ngx_proxy_protocol_v2_read(ngx_connection_t *c, u_char *buf, u_char *last)
in = (ngx_proxy_protocol_inet_addrs_t *) buf;
sockaddr.sockaddr_in.sin_family = AF_INET;
sockaddr.sockaddr_in.sin_port = 0;
memcpy(&sockaddr.sockaddr_in.sin_addr, in->src_addr, 4);
src_sockaddr.sockaddr_in.sin_family = AF_INET;
src_sockaddr.sockaddr_in.sin_port = 0;
memcpy(&src_sockaddr.sockaddr_in.sin_addr, in->src_addr, 4);
c->proxy_protocol_port = ngx_proxy_protocol_parse_uint16(in->src_port);
dst_sockaddr.sockaddr_in.sin_family = AF_INET;
dst_sockaddr.sockaddr_in.sin_port = 0;
memcpy(&dst_sockaddr.sockaddr_in.sin_addr, in->dst_addr, 4);
pp->src_port = ngx_proxy_protocol_parse_uint16(in->src_port);
pp->dst_port = ngx_proxy_protocol_parse_uint16(in->dst_port);
socklen = sizeof(struct sockaddr_in);
@@ -300,11 +365,16 @@ ngx_proxy_protocol_v2_read(ngx_connection_t *c, u_char *buf, u_char *last)
in6 = (ngx_proxy_protocol_inet6_addrs_t *) buf;
sockaddr.sockaddr_in6.sin6_family = AF_INET6;
sockaddr.sockaddr_in6.sin6_port = 0;
memcpy(&sockaddr.sockaddr_in6.sin6_addr, in6->src_addr, 16);
src_sockaddr.sockaddr_in6.sin6_family = AF_INET6;
src_sockaddr.sockaddr_in6.sin6_port = 0;
memcpy(&src_sockaddr.sockaddr_in6.sin6_addr, in6->src_addr, 16);
c->proxy_protocol_port = ngx_proxy_protocol_parse_uint16(in6->src_port);
dst_sockaddr.sockaddr_in6.sin6_family = AF_INET6;
dst_sockaddr.sockaddr_in6.sin6_port = 0;
memcpy(&dst_sockaddr.sockaddr_in6.sin6_addr, in6->dst_addr, 16);
pp->src_port = ngx_proxy_protocol_parse_uint16(in6->src_port);
pp->dst_port = ngx_proxy_protocol_parse_uint16(in6->dst_port);
socklen = sizeof(struct sockaddr_in6);
@@ -321,23 +391,32 @@ ngx_proxy_protocol_v2_read(ngx_connection_t *c, u_char *buf, u_char *last)
return end;
}
c->proxy_protocol_addr.data = ngx_pnalloc(c->pool, NGX_SOCKADDR_STRLEN);
if (c->proxy_protocol_addr.data == NULL) {
pp->src_addr.data = ngx_pnalloc(c->pool, NGX_SOCKADDR_STRLEN);
if (pp->src_addr.data == NULL) {
return NULL;
}
c->proxy_protocol_addr.len = ngx_sock_ntop(&sockaddr.sockaddr, socklen,
c->proxy_protocol_addr.data,
NGX_SOCKADDR_STRLEN, 0);
pp->src_addr.len = ngx_sock_ntop(&src_sockaddr.sockaddr, socklen,
pp->src_addr.data, NGX_SOCKADDR_STRLEN, 0);
ngx_log_debug2(NGX_LOG_DEBUG_CORE, c->log, 0,
"PROXY protocol v2 address: %V %d", &c->proxy_protocol_addr,
c->proxy_protocol_port);
pp->dst_addr.data = ngx_pnalloc(c->pool, NGX_SOCKADDR_STRLEN);
if (pp->dst_addr.data == NULL) {
return NULL;
}
pp->dst_addr.len = ngx_sock_ntop(&dst_sockaddr.sockaddr, socklen,
pp->dst_addr.data, NGX_SOCKADDR_STRLEN, 0);
ngx_log_debug4(NGX_LOG_DEBUG_CORE, c->log, 0,
"PROXY protocol v2 src: %V %d, dst: %V %d",
&pp->src_addr, pp->src_port, &pp->dst_addr, pp->dst_port);
if (buf < end) {
ngx_log_debug1(NGX_LOG_DEBUG_CORE, c->log, 0,
"PROXY protocol v2 %z bytes of tlv ignored", end - buf);
}
c->proxy_protocol = pp;
return end;
}