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Show how to supply a struct ng_cmdlist for (de)asciification

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of control messages.

Suggested by:	julian
This commit is contained in:
Archie Cobbs 1999-12-01 19:40:37 +00:00
parent 9f54c05286
commit fa200997c8
Notes: svn2git 2020-12-20 02:59:44 +00:00 
svn path=/head/; revision=53997
2 changed files with 49 additions and 7 deletions
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41
sys/netgraph/ng_sample.c
View File

@ -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);

15
sys/netgraph/ng_sample.h
View File

@ -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_ */