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Add controller support for new features exposed

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Ok, heres hopefully the last one in this series for generic netlink ..

cheers,
jamal

[GENL]: Add controller support for new features exposed

Update the controller to spit out the new features being exposed
from the kernel

Signed-off-by: J Hadi Salim <hadi@cyberus.ca>
Signed-off-by: Stephen Hemminger <shemminger@osdl.org>
This commit is contained in:
jamal 2006-12-06 12:35:52 -05:00 committed by Stephen Hemminger
parent 7c9e557ee4
commit 26328fc393
1 changed files with 82 additions and 2 deletions
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84
genl/ctrl.c
View File

@ -22,6 +22,7 @@
#include "utils.h"
#include "genl_utils.h"
#define GENL_MAX_FAM_OPS 256
static int usage(void)
{
fprintf(stderr,"Usage: ctrl <CMD>\n" \
@ -108,6 +109,51 @@ errout:
return ret;
}
void print_ctrl_cmd_flags(FILE *fp, __u32 fl)
{
fprintf(fp, "\n\t\tCapabilities (0x%x):\n ", fl);
if (!fl) {
fprintf(fp, "\n");
return;
}
fprintf(fp, "\t\t ");
if (fl & GENL_ADMIN_PERM)
fprintf(fp, " requires admin permission;");
if (fl & GENL_CMD_CAP_DO)
fprintf(fp, " can doit;");
if (fl & GENL_CMD_CAP_DUMP)
fprintf(fp, " can dumpit;");
if (fl & GENL_CMD_CAP_HASPOL)
fprintf(fp, " has policy");
fprintf(fp, "\n");
}
static int print_ctrl_cmds(FILE *fp, struct rtattr *arg, __u32 ctrl_ver)
{
struct rtattr *tb[CTRL_ATTR_OP_MAX + 1];
if (arg == NULL)
return -1;
parse_rtattr_nested(tb, CTRL_ATTR_OP_MAX, arg);
if (tb[CTRL_ATTR_OP_ID]) {
__u32 *id = RTA_DATA(tb[CTRL_ATTR_OP_ID]);
fprintf(fp, " ID-0x%x ",*id);
}
/* we are only gonna do this for newer version of the controller */
if (tb[CTRL_ATTR_OP_FLAGS] && ctrl_ver >= 0x2) {
__u32 *fl = RTA_DATA(tb[CTRL_ATTR_OP_FLAGS]);
print_ctrl_cmd_flags(fp, *fl);
}
return 0;
}
/*
* The controller sends one nlmsg per family
*/
static int print_ctrl(const struct sockaddr_nl *who, struct nlmsghdr *n,
void *arg)
{
@ -116,6 +162,7 @@ static int print_ctrl(const struct sockaddr_nl *who, struct nlmsghdr *n,
int len = n->nlmsg_len;
struct rtattr *attrs;
FILE *fp = (FILE *) arg;
__u32 ctrl_v = 0x1;
if (n->nlmsg_type != GENL_ID_CTRL) {
fprintf(stderr, "Not a controller message, nlmsg_len=%d "
@ -142,13 +189,46 @@ static int print_ctrl(const struct sockaddr_nl *who, struct nlmsghdr *n,
if (tb[CTRL_ATTR_FAMILY_NAME]) {
char *name = RTA_DATA(tb[CTRL_ATTR_FAMILY_NAME]);
fprintf(fp, "Name: %s\n",name);
fprintf(fp, "\nName: %s\n",name);
}
if (tb[CTRL_ATTR_FAMILY_ID]) {
__u16 *id = RTA_DATA(tb[CTRL_ATTR_FAMILY_ID]);
fprintf(fp, "ID: 0x%x\n",*id);
fprintf(fp, "\tID: 0x%x ",*id);
}
if (tb[CTRL_ATTR_VERSION]) {
__u32 *v = RTA_DATA(tb[CTRL_ATTR_VERSION]);
fprintf(fp, " Version: 0x%x ",*v);
ctrl_v = *v;
}
if (tb[CTRL_ATTR_HDRSIZE]) {
__u32 *h = RTA_DATA(tb[CTRL_ATTR_HDRSIZE]);
fprintf(fp, " header size: %d ",*h);
}
if (tb[CTRL_ATTR_MAXATTR]) {
__u32 *ma = RTA_DATA(tb[CTRL_ATTR_MAXATTR]);
fprintf(fp, " max attribs: %d ",*ma);
}
/* end of family definitions .. */
fprintf(fp,"\n");
if (tb[CTRL_ATTR_OPS]) {
struct rtattr *tb2[GENL_MAX_FAM_OPS];
int i=0;
parse_rtattr_nested(tb2, GENL_MAX_FAM_OPS, tb[CTRL_ATTR_OPS]);
fprintf(fp, "\tcommands supported: \n");
for (i = 0; i < GENL_MAX_FAM_OPS; i++) {
if (tb2[i]) {
fprintf(fp, "\t\t#%d: ", i);
if (0 > print_ctrl_cmds(fp, tb2[i], ctrl_v)) {
fprintf(fp, "Error printing command\n");
}
/* for next command */
fprintf(fp,"\n");
}
}
/* end of family::cmds definitions .. */
fprintf(fp,"\n");
}
fflush(fp);
return 0;
}