Dump Generic netlink ops & mcast groups nested attributes.
Signed-off-by: Vadim Kochan <vadi...@gmail.com>
---
proto_nlmsg.c | 106 ++++++++++++++++++++++++++++++++++++++++++++++++++--------
1 file changed, 92 insertions(+), 14 deletions(-)
diff --git a/proto_nlmsg.c b/proto_nlmsg.c
index c9238c8..cd3b8c4 100644
--- a/proto_nlmsg.c
+++ b/proto_nlmsg.c
@@ -85,6 +85,16 @@
tprintf("\tA: "fmt, ##__VA_ARGS__); \
tprintf(", Len %d\n", NLA_LEN(attr));
+#define nla_fmt_nested(attr, fmt, ...) \
+ tprintf("[ "fmt, ##__VA_ARGS__); \
+ tprintf(", Len %d] ", NLA_LEN(attr));
+
+#define nla_fmt_nested_start(attr, fmt, ...) \
+ tprintf("\t A: "fmt, ##__VA_ARGS__); \
+ tprintf(", Len %d ", NLA_LEN(attr));
+
+#define nla_fmt_nested_end() tprintf("\n")
+
struct flag_name {
const char *name;
unsigned int flag;
@@ -808,7 +818,77 @@ static const char *genl_cmd2str(uint8_t table)
}
}
-static void genl_print_ctrl_family(struct nlmsghdr *hdr)
+static struct flag_name genl_ops_flags[] = {
+ { "admin", GENL_ADMIN_PERM },
+ { "doit", GENL_CMD_CAP_DO },
+ { "dumpit", GENL_CMD_CAP_DUMP },
+ { "policy", GENL_CMD_CAP_HASPOL },
+ { NULL, 0 },
+};
+
+static void genl_print_ops_attr(struct nlattr *attr, uint32_t attr_len)
+{
+ char str[256];
+ uint32_t flags;
+
+ for (; NLA_OK(attr, attr_len); attr = NLA_NEXT(attr, attr_len)) {
+ switch (attr->nla_type) {
+ case CTRL_ATTR_OP_ID:
+ nla_fmt_nested(attr, "Id 0x%x", NLA_UINT32(attr));
+ break;
+
+ case CTRL_ATTR_OP_FLAGS:
+ flags = NLA_UINT32(attr);
+
+ nla_fmt_nested(attr, "Flags 0x%x (%s%s%s)", flags,
+ colorize_start(bold),
+ flags2str(genl_ops_flags, flags, str, sizeof(str)),
+ colorize_end());
+ break;
+ default:
+ nla_fmt_nested(attr, "0x%x", attr->nla_type);
+ break;
+ }
+ }
+}
+
+static void genl_print_ops_list(struct nlattr *attr, uint32_t attr_len)
+{
+ for (; NLA_OK(attr, attr_len); attr = NLA_NEXT(attr, attr_len)) {
+ nla_fmt_nested_start(attr, "0x%x", attr->nla_type);
+ genl_print_ops_attr(NLA_DATA(attr), NLA_LEN(attr));
+ nla_fmt_nested_end();
+ }
+}
+
+static void genl_print_mcast_group(struct nlattr *attr, uint32_t attr_len)
+{
+ for (; NLA_OK(attr, attr_len); attr = NLA_NEXT(attr, attr_len)) {
+ switch (attr->nla_type) {
+ case CTRL_ATTR_MCAST_GRP_ID:
+ nla_fmt_nested(attr, "Id 0x%x", NLA_UINT32(attr));
+ break;
+
+ case CTRL_ATTR_MCAST_GRP_NAME:
+ nla_fmt_nested(attr, "Name %s", NLA_STR(attr));
+ break;
+ default:
+ nla_fmt_nested(attr, "0x%x", attr->nla_type);
+ break;
+ }
+ }
+}
+
+static void genl_print_mc_groups(struct nlattr *attr, uint32_t attr_len)
+{
+ for (; NLA_OK(attr, attr_len); attr = NLA_NEXT(attr, attr_len)) {
+ nla_fmt_nested_start(attr, "0x%x", attr->nla_type);
+ genl_print_mcast_group(NLA_DATA(attr), NLA_LEN(attr));
+ nla_fmt_nested_end();
+ }
+}
+
+static void genl_print_ctrl_attrs(struct nlmsghdr *hdr)
{
struct genlmsghdr *genl = NLMSG_DATA(hdr);
struct nlattr *attr = GEN_NLA(genl);
@@ -836,6 +916,16 @@ static void genl_print_ctrl_family(struct nlmsghdr *hdr)
nla_fmt(attr, "Max attr value 0x%x", NLA_UINT32(attr));
break;
+ case CTRL_ATTR_OPS:
+ nla_fmt(attr, "Ops list");
+ genl_print_ops_list(NLA_DATA(attr), NLA_LEN(attr));
+ break;
+
+ case CTRL_ATTR_MCAST_GROUPS:
+ nla_fmt(attr, "Mcast groups");
+ genl_print_mc_groups(NLA_DATA(attr), NLA_LEN(attr));
+ break;
+
default:
nla_fmt(attr, "0x%x", attr->nla_type);
break;
@@ -843,18 +933,6 @@ static void genl_print_ctrl_family(struct nlmsghdr *hdr)
}
}
-static void genl_print_ctrl(struct nlmsghdr *hdr)
-{
- struct genlmsghdr *genl = NLMSG_DATA(hdr);
-
- switch (genl->cmd) {
- case CTRL_CMD_NEWFAMILY:
- case CTRL_CMD_DELFAMILY:
- case CTRL_CMD_GETFAMILY:
- genl_print_ctrl_family(hdr);
- }
-}
-
static void genl_msg_print(struct nlmsghdr *hdr)
{
struct genlmsghdr *genl;
@@ -872,7 +950,7 @@ static void genl_msg_print(struct nlmsghdr *hdr)
tprintf(", Reserved %u", genl->reserved);
tprintf(" ]\n");
- genl_print_ctrl(hdr);
+ genl_print_ctrl_attrs(hdr);
}
static void nlmsg_print(uint16_t family, struct nlmsghdr *hdr)
--
2.6.2
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