vswitchd: Document behavior of 802.1p priorities with VLAN splinters.

[sliver-openvswitch.git] / lib / stream.c

diff --git a/lib/stream.c b/lib/stream.c
index 90ec521..4c3583c 100644 (file)
--- a/lib/stream.c
+++ b/lib/stream.c
@@ -49,7 +49,7 @@ enum stream_state {
     SCS_DISCONNECTED            /* Connection failed or connection closed. */
 };
 
-static struct stream_class *stream_classes[] = {
+static const struct stream_class *stream_classes[] = {
     &tcp_stream_class,
     &unix_stream_class,
 #ifdef HAVE_OPENSSL
@@ -57,7 +57,7 @@ static struct stream_class *stream_classes[] = {
 #endif
 };
 
-static struct pstream_class *pstream_classes[] = {
+static const struct pstream_class *pstream_classes[] = {
     &ptcp_pstream_class,
     &punix_pstream_class,
 #ifdef HAVE_OPENSSL
@@ -73,7 +73,7 @@ check_stream_classes(void)
     size_t i;
 
     for (i = 0; i < ARRAY_SIZE(stream_classes); i++) {
-        struct stream_class *class = stream_classes[i];
+        const struct stream_class *class = stream_classes[i];
         assert(class->name != NULL);
         assert(class->open != NULL);
         if (class->close || class->recv || class->send || class->run
@@ -88,7 +88,7 @@ check_stream_classes(void)
     }
 
     for (i = 0; i < ARRAY_SIZE(pstream_classes); i++) {
-        struct pstream_class *class = pstream_classes[i];
+        const struct pstream_class *class = pstream_classes[i];
         assert(class->name != NULL);
         assert(class->listen != NULL);
         if (class->close || class->accept || class->wait) {
@@ -154,7 +154,7 @@ stream_usage(const char *name, bool active, bool passive,
  * a null pointer into '*classp' if 'name' is in the wrong form or if no such
  * class exists. */
 static int
-stream_lookup_class(const char *name, struct stream_class **classp)
+stream_lookup_class(const char *name, const struct stream_class **classp)
 {
     size_t prefix_len;
     size_t i;
@@ -167,7 +167,7 @@ stream_lookup_class(const char *name, struct stream_class **classp)
         return EAFNOSUPPORT;
     }
     for (i = 0; i < ARRAY_SIZE(stream_classes); i++) {
-        struct stream_class *class = stream_classes[i];
+        const struct stream_class *class = stream_classes[i];
         if (strlen(class->name) == prefix_len
             && !memcmp(class->name, name, prefix_len)) {
             *classp = class;
@@ -182,7 +182,7 @@ stream_lookup_class(const char *name, struct stream_class **classp)
 int
 stream_verify_name(const char *name)
 {
-    struct stream_class *class;
+    const struct stream_class *class;
     return stream_lookup_class(name, &class);
 }
 
@@ -196,7 +196,7 @@ stream_verify_name(const char *name)
 int
 stream_open(const char *name, struct stream **streamp)
 {
-    struct stream_class *class;
+    const struct stream_class *class;
     struct stream *stream;
     char *suffix_copy;
     int error;
@@ -457,7 +457,7 @@ stream_send_wait(struct stream *stream)
  * a null pointer into '*classp' if 'name' is in the wrong form or if no such
  * class exists. */
 static int
-pstream_lookup_class(const char *name, struct pstream_class **classp)
+pstream_lookup_class(const char *name, const struct pstream_class **classp)
 {
     size_t prefix_len;
     size_t i;
@@ -470,7 +470,7 @@ pstream_lookup_class(const char *name, struct pstream_class **classp)
         return EAFNOSUPPORT;
     }
     for (i = 0; i < ARRAY_SIZE(pstream_classes); i++) {
-        struct pstream_class *class = pstream_classes[i];
+        const struct pstream_class *class = pstream_classes[i];
         if (strlen(class->name) == prefix_len
             && !memcmp(class->name, name, prefix_len)) {
             *classp = class;
@@ -485,7 +485,7 @@ pstream_lookup_class(const char *name, struct pstream_class **classp)
 int
 pstream_verify_name(const char *name)
 {
-    struct pstream_class *class;
+    const struct pstream_class *class;
     return pstream_lookup_class(name, &class);
 }
 
@@ -499,7 +499,7 @@ pstream_verify_name(const char *name)
 int
 pstream_open(const char *name, struct pstream **pstreamp)
 {
-    struct pstream_class *class;
+    const struct pstream_class *class;
     struct pstream *pstream;
     char *suffix_copy;
     int error;
@@ -613,9 +613,10 @@ pstream_wait(struct pstream *pstream)
  *
  * The caller retains ownership of 'name'. */
 void
-stream_init(struct stream *stream, struct stream_class *class,
+stream_init(struct stream *stream, const struct stream_class *class,
             int connect_status, const char *name)
 {
+    memset(stream, 0, sizeof *stream);
     stream->class = class;
     stream->state = (connect_status == EAGAIN ? SCS_CONNECTING
                     : !connect_status ? SCS_CONNECTED
@@ -650,7 +651,7 @@ stream_set_local_port(struct stream *stream, ovs_be16 port)
 }
 
 void
-pstream_init(struct pstream *pstream, struct pstream_class *class,
+pstream_init(struct pstream *pstream, const struct pstream_class *class,
             const char *name)
 {
     pstream->class = class;
@@ -723,11 +724,31 @@ pstream_open_with_default_ports(const char *name_,
 
     return error;
 }
-\f
+
+/*
+ * This function extracts IP address and port from the target string.
+ *
+ *     - On success, function returns true and fills *sin structure with port
+ *       and IP address. If port was absent in target string then it will use
+ *       corresponding default port value.
+ *     - On error, function returns false and *sin contains garbage.
+ */
+bool
+stream_parse_target_with_default_ports(const char *target,
+                                       uint16_t default_tcp_port,
+                                       uint16_t default_ssl_port,
+                                       struct sockaddr_in *sin)
+{
+    return (!strncmp(target, "tcp:", 4)
+             && inet_parse_active(target + 4, default_tcp_port, sin)) ||
+            (!strncmp(target, "ssl:", 4)
+             && inet_parse_active(target + 4, default_ssl_port, sin));
+}
+
 /* Attempts to guess the content type of a stream whose first few bytes were
  * the 'size' bytes of 'data'. */
 static enum stream_content_type
-stream_guess_content(const uint8_t *data, size_t size)
+stream_guess_content(const uint8_t *data, ssize_t size)
 {
     if (size >= 2) {
 #define PAIR(A, B) (((A) << 8) | (B))
@@ -770,7 +791,7 @@ stream_content_type_to_string(enum stream_content_type type)
  * module 'module', naming 'stream_name' as the source, explaining what
  * content was expected and what was actually received. */
 void
-stream_report_content(const void *data, size_t size,
+stream_report_content(const void *data, ssize_t size,
                       enum stream_content_type expected_type,
                       struct vlog_module *module, const char *stream_name)
 {