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authorarchie <archie@FreeBSD.org>1999-12-01 19:40:37 +0000
committerarchie <archie@FreeBSD.org>1999-12-01 19:40:37 +0000
commita5c64fe8bbf78d360a1400b91af82ca843efc407 (patch)
tree6899eb342e2764f9f2a76fd966e71dc263272985 /sys
parent579c93e79305fd5f203f4fb5546c42fa53c347c0 (diff)
downloadFreeBSD-src-a5c64fe8bbf78d360a1400b91af82ca843efc407.zip
FreeBSD-src-a5c64fe8bbf78d360a1400b91af82ca843efc407.tar.gz
Show how to supply a struct ng_cmdlist for (de)asciification
of control messages. Suggested by: julian
Diffstat (limited to 'sys')
-rw-r--r--sys/netgraph/ng_sample.c41
-rw-r--r--sys/netgraph/ng_sample.h15
2 files changed, 49 insertions, 7 deletions
diff --git a/sys/netgraph/ng_sample.c b/sys/netgraph/ng_sample.c
index 688cd81..5269954 100644
--- a/sys/netgraph/ng_sample.c
+++ b/sys/netgraph/ng_sample.c
@@ -45,10 +45,12 @@
#include <sys/kernel.h>
#include <sys/mbuf.h>
#include <sys/malloc.h>
+#include <sys/ctype.h>
#include <sys/errno.h>
#include <sys/syslog.h>
#include <netgraph/ng_message.h>
+#include <netgraph/ng_parse.h>
#include <netgraph/ng_sample.h>
#include <netgraph/netgraph.h>
@@ -66,6 +68,33 @@ static ng_rcvdata_t ng_xxx_rcvdata; /* note these are both ng_rcvdata_t */
static ng_rcvdata_t ng_xxx_rcvdataq; /* note these are both ng_rcvdata_t */
static ng_disconnect_t ng_xxx_disconnect;
+/* Parse type for struct ngxxxstat */
+static const struct ng_parse_struct_info
+ ng_xxx_stat_type_info = NG_XXX_STATS_TYPE_INFO;
+static const struct ng_parse_type ng_xxx_stat_type = {
+ &ng_parse_struct_type,
+ &ng_xxx_stat_type_info
+};
+
+/* List of commands and how to convert arguments to/from ASCII */
+static const struct ng_cmdlist ng_xxx_cmdlist[] = {
+ {
+ NGM_XXX_COOKIE,
+ NGM_XXX_GET_STATUS,
+ "getstatus",
+ NULL,
+ &ng_xxx_stat_type,
+ },
+ {
+ NGM_XXX_COOKIE,
+ NGM_XXX_SET_FLAG,
+ "setflag",
+ &ng_parse_int32_type,
+ NULL
+ },
+ { 0 }
+};
+
/* Netgraph node type descriptor */
static struct ng_type typestruct = {
NG_VERSION,
@@ -80,7 +109,7 @@ static struct ng_type typestruct = {
ng_xxx_rcvdata,
ng_xxx_rcvdataq,
ng_xxx_disconnect,
- NULL
+ ng_xxx_cmdlist
};
NETGRAPH_INIT(xxx, &typestruct);
@@ -161,8 +190,6 @@ ng_xxx_newhook(node_p node, hook_p hook, const char *name)
{
const xxx_p xxxp = node->private;
const char *cp;
- char c = '\0';
- int digits = 0;
int dlci = 0;
int chan;
@@ -297,12 +324,12 @@ static int
ng_xxx_rcvdata(hook_p hook, struct mbuf *m, meta_p meta)
{
int dlci = -2;
- int error;
if (hook->private) {
/*
- * If it's dlci 1023, requeue it so that it's handled at a lower priority.
- * This is how a node decides to defer a data message.
+ * If it's dlci 1023, requeue it so that it's handled
+ * at a lower priority. This is how a node decides to
+ * defer a data message.
*/
dlci = ((struct XXX_hookinfo *) hook->private)->dlci;
if (dlci == 1023) {
@@ -433,7 +460,7 @@ static int
ng_xxx_disconnect(hook_p hook)
{
if (hook->private)
- ((struct XXX_hookinfo *) (hook->private))->hook == NULL;
+ ((struct XXX_hookinfo *) (hook->private))->hook = NULL;
if (hook->node->numhooks == 0)
ng_rmnode(hook->node);
return (0);
diff --git a/sys/netgraph/ng_sample.h b/sys/netgraph/ng_sample.h
index 5d2df45..faa539c 100644
--- a/sys/netgraph/ng_sample.h
+++ b/sys/netgraph/ng_sample.h
@@ -72,4 +72,19 @@ struct ngxxxstat {
u_int packets_out; /* packets out towards downstream */
};
+/*
+ * This is used to define the 'parse type' for a struct ngxxxstat, which
+ * is bascially a description of how to convert a binary struct ngxxxstat
+ * to an ASCII string and back. See ng_parse.h for more info.
+ *
+ * This needs to be kept in sync with the above structure definition
+ */
+#define NG_XXX_STATS_TYPE_INFO { \
+ { \
+ { "packets_in", &ng_parse_int32_type }, \
+ { "packets_out", &ng_parse_int32_type }, \
+ { NULL }, \
+ } \
+}
+
#endif /* _NETGRAPH_SAMPLE_H_ */
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