Author: ae
Date: Tue Nov 3 10:21:53 2015
New Revision: 290330
URL: https://svnweb.freebsd.org/changeset/base/290330
Log:
Implement `ipfw internal olist` command to list named objects.
Reviewed by: melifaro
Obtained from: Yandex LLC
Sponsored by: Yandex LLC
Modified:
head/sbin/ipfw/ipfw2.c
head/sbin/ipfw/ipfw2.h
head/sys/netinet/ip_fw.h
head/sys/netpfil/ipfw/ip_fw_private.h
head/sys/netpfil/ipfw/ip_fw_sockopt.c
Modified: head/sbin/ipfw/ipfw2.c
==============================================================================
--- head/sbin/ipfw/ipfw2.c Tue Nov 3 09:50:10 2015 (r290329)
+++ head/sbin/ipfw/ipfw2.c Tue Nov 3 10:21:53 2015 (r290330)
@@ -4983,10 +4983,48 @@ ipfw_flush(int force)
static struct _s_x intcmds[] = {
{ "talist", TOK_TALIST },
{ "iflist", TOK_IFLIST },
+ { "olist", TOK_OLIST },
{ "vlist", TOK_VLIST },
{ NULL, 0 }
};
+static void
+ipfw_list_objects(int ac, char *av[])
+{
+ ipfw_obj_lheader req, *olh;
+ ipfw_obj_ntlv *ntlv;
+ size_t sz;
+ int i;
+
+ memset(&req, 0, sizeof(req));
+ sz = sizeof(req);
+ if (do_get3(IP_FW_DUMP_SRVOBJECTS, &req.opheader, &sz) != 0)
+ if (errno != ENOMEM)
+ return;
+
+ sz = req.size;
+ if ((olh = calloc(1, sz)) == NULL)
+ return;
+
+ olh->size = sz;
+ if (do_get3(IP_FW_DUMP_SRVOBJECTS, &olh->opheader, &sz) != 0) {
+ free(olh);
+ return;
+ }
+
+ if (olh->count > 0)
+ printf("Objects list:\n");
+ else
+ printf("There are no objects\n");
+ ntlv = (ipfw_obj_ntlv *)(olh + 1);
+ for (i = 0; i < olh->count; i++) {
+ printf(" kidx: %4d\ttype: %2d\tname: %s\n", ntlv->idx,
+ ntlv->head.type, ntlv->name);
+ ntlv++;
+ }
+ free(olh);
+}
+
void
ipfw_internal_handler(int ac, char *av[])
{
@@ -5005,6 +5043,9 @@ ipfw_internal_handler(int ac, char *av[]
case TOK_TALIST:
ipfw_list_ta(ac, av);
break;
+ case TOK_OLIST:
+ ipfw_list_objects(ac, av);
+ break;
case TOK_VLIST:
ipfw_list_values(ac, av);
break;
Modified: head/sbin/ipfw/ipfw2.h
==============================================================================
--- head/sbin/ipfw/ipfw2.h Tue Nov 3 09:50:10 2015 (r290329)
+++ head/sbin/ipfw/ipfw2.h Tue Nov 3 10:21:53 2015 (r290330)
@@ -227,6 +227,7 @@ enum tokens {
TOK_LOCK,
TOK_UNLOCK,
TOK_VLIST,
+ TOK_OLIST,
};
/*
Modified: head/sys/netinet/ip_fw.h
==============================================================================
--- head/sys/netinet/ip_fw.h Tue Nov 3 09:50:10 2015 (r290329)
+++ head/sys/netinet/ip_fw.h Tue Nov 3 10:21:53 2015 (r290330)
@@ -107,6 +107,7 @@ typedef struct _ip_fw3_opheader {
#define IP_FW_NAT44_XGETLOG 115 /* Get log from NAT44 instance
*/
#define IP_FW_DUMP_SOPTCODES 116 /* Dump available
sopts/versions */
+#define IP_FW_DUMP_SRVOBJECTS 117 /* Dump existing named objects
*/
/*
* The kernel representation of ipfw rules is made of a list of
Modified: head/sys/netpfil/ipfw/ip_fw_private.h
==============================================================================
--- head/sys/netpfil/ipfw/ip_fw_private.h Tue Nov 3 09:50:10 2015
(r290329)
+++ head/sys/netpfil/ipfw/ip_fw_private.h Tue Nov 3 10:21:53 2015
(r290330)
@@ -673,6 +673,7 @@ int ipfw_objhash_free_idx(struct namedob
int ipfw_objhash_alloc_idx(void *n, uint16_t *pidx);
void ipfw_objhash_set_funcs(struct namedobj_instance *ni,
objhash_hash_f *hash_f, objhash_cmp_f *cmp_f);
+void ipfw_export_obj_ntlv(struct named_object *no, ipfw_obj_ntlv *ntlv);
void ipfw_init_obj_rewriter(void);
void ipfw_destroy_obj_rewriter(void);
void ipfw_add_obj_rewriter(struct opcode_obj_rewrite *rw, size_t count);
Modified: head/sys/netpfil/ipfw/ip_fw_sockopt.c
==============================================================================
--- head/sys/netpfil/ipfw/ip_fw_sockopt.c Tue Nov 3 09:50:10 2015
(r290329)
+++ head/sys/netpfil/ipfw/ip_fw_sockopt.c Tue Nov 3 10:21:53 2015
(r290330)
@@ -119,6 +119,8 @@ static int manage_sets(struct ip_fw_chai
struct sockopt_data *sd);
static int dump_soptcodes(struct ip_fw_chain *chain, ip_fw3_opheader *op3,
struct sockopt_data *sd);
+static int dump_srvobjects(struct ip_fw_chain *chain, ip_fw3_opheader *op3,
+ struct sockopt_data *sd);
/* ctl3 handler data */
struct mtx ctl3_lock;
@@ -146,6 +148,7 @@ static struct ipfw_sopt_handler scodes[]
{ IP_FW_SET_MOVE, 0, HDIR_SET, manage_sets },
{ IP_FW_SET_ENABLE, 0, HDIR_SET, manage_sets },
{ IP_FW_DUMP_SOPTCODES, 0, HDIR_GET, dump_soptcodes },
+ { IP_FW_DUMP_SRVOBJECTS,0, HDIR_GET, dump_srvobjects },
};
static int
@@ -1876,6 +1879,16 @@ struct dump_args {
int rcounters; /* counters */
};
+void
+ipfw_export_obj_ntlv(struct named_object *no, ipfw_obj_ntlv *ntlv)
+{
+
+ ntlv->head.type = no->etlv;
+ ntlv->head.length = sizeof(*ntlv);
+ ntlv->idx = no->kidx;
+ strlcpy(ntlv->name, no->name, sizeof(ntlv->name));
+}
+
/*
* Export named object info in instance @ni, identified by @kidx
* to ipfw_obj_ntlv. TLV is allocated from @sd space.
@@ -1896,11 +1909,7 @@ export_objhash_ntlv(struct namedobj_inst
if (ntlv == NULL)
return (ENOMEM);
- ntlv->head.type = no->etlv;
- ntlv->head.length = sizeof(*ntlv);
- ntlv->idx = no->kidx;
- strlcpy(ntlv->name, no->name, sizeof(ntlv->name));
-
+ ipfw_export_obj_ntlv(no, ntlv);
return (0);
}
@@ -2803,6 +2812,54 @@ ipfw_del_obj_rewriter(struct opcode_obj_
return (0);
}
+static void
+export_objhash_ntlv_internal(struct namedobj_instance *ni,
+ struct named_object *no, void *arg)
+{
+ struct sockopt_data *sd;
+ ipfw_obj_ntlv *ntlv;
+
+ sd = (struct sockopt_data *)arg;
+ ntlv = (ipfw_obj_ntlv *)ipfw_get_sopt_space(sd, sizeof(*ntlv));
+ if (ntlv == NULL)
+ return;
+ ipfw_export_obj_ntlv(no, ntlv);
+}
+
+/*
+ * Lists all service objects.
+ * Data layout (v0)(current):
+ * Request: [ ipfw_obj_lheader ] size = ipfw_cfg_lheader.size
+ * Reply: [ ipfw_obj_lheader [ ipfw_obj_ntlv x N ] (optional) ]
+ * Returns 0 on success
+ */
+static int
+dump_srvobjects(struct ip_fw_chain *chain, ip_fw3_opheader *op3,
+ struct sockopt_data *sd)
+{
+ ipfw_obj_lheader *hdr;
+ int count;
+
+ hdr = (ipfw_obj_lheader *)ipfw_get_sopt_header(sd, sizeof(*hdr));
+ if (hdr == NULL)
+ return (EINVAL);
+
+ IPFW_UH_RLOCK(chain);
+ count = ipfw_objhash_count(CHAIN_TO_SRV(chain));
+ hdr->size = sizeof(ipfw_obj_lheader) + count * sizeof(ipfw_obj_ntlv);
+ if (sd->valsize < hdr->size) {
+ IPFW_UH_RUNLOCK(chain);
+ return (ENOMEM);
+ }
+ hdr->count = count;
+ hdr->objsize = sizeof(ipfw_obj_ntlv);
+ if (count > 0)
+ ipfw_objhash_foreach(CHAIN_TO_SRV(chain),
+ export_objhash_ntlv_internal, sd);
+ IPFW_UH_RUNLOCK(chain);
+ return (0);
+}
+
/*
* Compares two sopt handlers (code, version and handler ptr).
* Used both as qsort() and bsearch().
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