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-rw-r--r--src/vnet/lawful-intercept/lawful_intercept.c96
-rw-r--r--src/vnet/lawful-intercept/lawful_intercept.h23
-rw-r--r--src/vnet/lawful-intercept/node.c274
3 files changed, 211 insertions, 182 deletions
diff --git a/src/vnet/lawful-intercept/lawful_intercept.c b/src/vnet/lawful-intercept/lawful_intercept.c
index e48e1cf4bd1..484b898d69a 100644
--- a/src/vnet/lawful-intercept/lawful_intercept.c
+++ b/src/vnet/lawful-intercept/lawful_intercept.c
@@ -19,10 +19,9 @@ li_main_t li_main;
static clib_error_t *
set_li_command_fn (vlib_main_t * vm,
- unformat_input_t * input,
- vlib_cli_command_t * cmd)
+ unformat_input_t * input, vlib_cli_command_t * cmd)
{
- li_main_t * lm = &li_main;
+ li_main_t *lm = &li_main;
ip4_address_t collector;
u8 collector_set = 0;
ip4_address_t src;
@@ -32,18 +31,19 @@ set_li_command_fn (vlib_main_t * vm,
u8 is_add = 1;
int i;
- while (unformat_check_input (input) != UNFORMAT_END_OF_INPUT) {
- if (unformat (input, "collector %U", unformat_ip4_address, &collector))
- collector_set = 1;
- if (unformat (input, "src %U", unformat_ip4_address, &src))
- src_set = 1;
- else if (unformat (input, "udp-port %d", &tmp))
- udp_port = tmp;
- else if (unformat (input, "del"))
- is_add = 0;
- else
- break;
- }
+ while (unformat_check_input (input) != UNFORMAT_END_OF_INPUT)
+ {
+ if (unformat (input, "collector %U", unformat_ip4_address, &collector))
+ collector_set = 1;
+ if (unformat (input, "src %U", unformat_ip4_address, &src))
+ src_set = 1;
+ else if (unformat (input, "udp-port %d", &tmp))
+ udp_port = tmp;
+ else if (unformat (input, "del"))
+ is_add = 0;
+ else
+ break;
+ }
if (collector_set == 0)
return clib_error_return (0, "collector must be set...");
@@ -55,19 +55,19 @@ set_li_command_fn (vlib_main_t * vm,
if (is_add == 1)
{
for (i = 0; i < vec_len (lm->collectors); i++)
- {
- if (lm->collectors[i].as_u32 == collector.as_u32)
- {
- if (lm->ports[i] == udp_port)
- return clib_error_return
- (0, "collector %U:%d already configured",
- &collector, udp_port);
- else
- return clib_error_return
- (0, "collector %U already configured with port %d",
- &collector, (int)(lm->ports[i]));
- }
- }
+ {
+ if (lm->collectors[i].as_u32 == collector.as_u32)
+ {
+ if (lm->ports[i] == udp_port)
+ return clib_error_return
+ (0, "collector %U:%d already configured",
+ &collector, udp_port);
+ else
+ return clib_error_return
+ (0, "collector %U already configured with port %d",
+ &collector, (int) (lm->ports[i]));
+ }
+ }
vec_add1 (lm->collectors, collector);
vec_add1 (lm->ports, udp_port);
vec_add1 (lm->src_addrs, src);
@@ -76,39 +76,49 @@ set_li_command_fn (vlib_main_t * vm,
else
{
for (i = 0; i < vec_len (lm->collectors); i++)
- {
- if ((lm->collectors[i].as_u32 == collector.as_u32)
- && lm->ports[i] == udp_port)
- {
- vec_delete (lm->collectors, 1, i);
- vec_delete (lm->ports, 1, i);
- vec_delete (lm->src_addrs, 1, i);
- return 0;
- }
- }
+ {
+ if ((lm->collectors[i].as_u32 == collector.as_u32)
+ && lm->ports[i] == udp_port)
+ {
+ vec_delete (lm->collectors, 1, i);
+ vec_delete (lm->ports, 1, i);
+ vec_delete (lm->src_addrs, 1, i);
+ return 0;
+ }
+ }
return clib_error_return (0, "collector %U:%d not configured",
- &collector, udp_port);
+ &collector, udp_port);
}
return 0;
}
+/* *INDENT-OFF* */
VLIB_CLI_COMMAND (set_li_command, static) = {
.path = "set li",
- .short_help =
+ .short_help =
"set li src <ip4-address> collector <ip4-address> udp-port <nnnn>",
.function = set_li_command_fn,
};
+/* *INDENT-ON* */
static clib_error_t *
li_init (vlib_main_t * vm)
{
- li_main_t * lm = &li_main;
+ li_main_t *lm = &li_main;
lm->vlib_main = vm;
- lm->vnet_main = vnet_get_main();
+ lm->vnet_main = vnet_get_main ();
lm->hit_node_index = li_hit_node.index;
return 0;
}
-VLIB_INIT_FUNCTION(li_init);
+VLIB_INIT_FUNCTION (li_init);
+
+/*
+ * fd.io coding-style-patch-verification: ON
+ *
+ * Local Variables:
+ * eval: (c-set-style "gnu")
+ * End:
+ */
diff --git a/src/vnet/lawful-intercept/lawful_intercept.h b/src/vnet/lawful-intercept/lawful_intercept.h
index bcb18afece2..e39fa0d0752 100644
--- a/src/vnet/lawful-intercept/lawful_intercept.h
+++ b/src/vnet/lawful-intercept/lawful_intercept.h
@@ -19,27 +19,38 @@
#include <vnet/vnet.h>
#include <vnet/ip/ip.h>
-typedef struct {
+typedef struct
+{
/* LI collector info */
- ip4_address_t * src_addrs;
- ip4_address_t * collectors;
- u16 * ports;
+ ip4_address_t *src_addrs;
+ ip4_address_t *collectors;
+ u16 *ports;
/* Hit node index */
u32 hit_node_index;
/* convenience */
- vlib_main_t * vlib_main;
- vnet_main_t * vnet_main;
+ vlib_main_t *vlib_main;
+ vnet_main_t *vnet_main;
} li_main_t;
extern li_main_t li_main;
+/* *INDENT-OFF* */
typedef CLIB_PACKED(struct {
ip4_header_t ip4;
udp_header_t udp;
}) ip4_udp_header_t;
+/* *INDENT-ON* */
extern vlib_node_registration_t li_hit_node;
#endif /* __lawful_intercept_h__ */
+
+/*
+ * fd.io coding-style-patch-verification: ON
+ *
+ * Local Variables:
+ * eval: (c-set-style "gnu")
+ * End:
+ */
diff --git a/src/vnet/lawful-intercept/node.c b/src/vnet/lawful-intercept/node.c
index 50c76ec5a7f..716af43e063 100644
--- a/src/vnet/lawful-intercept/node.c
+++ b/src/vnet/lawful-intercept/node.c
@@ -24,17 +24,19 @@
vlib_node_registration_t li_hit_node;
-typedef struct {
+typedef struct
+{
u32 next_index;
} li_hit_trace_t;
/* packet trace format function */
-static u8 * format_li_hit_trace (u8 * s, va_list * args)
+static u8 *
+format_li_hit_trace (u8 * s, va_list * args)
{
CLIB_UNUSED (vlib_main_t * vm) = va_arg (*args, vlib_main_t *);
CLIB_UNUSED (vlib_node_t * node) = va_arg (*args, vlib_node_t *);
- li_hit_trace_t * t = va_arg (*args, li_hit_trace_t *);
-
+ li_hit_trace_t *t = va_arg (*args, li_hit_trace_t *);
+
s = format (s, "LI_HIT: next index %d", t->next_index);
return s;
@@ -47,44 +49,44 @@ _(HITS, "LI packets processed") \
_(NO_COLLECTOR, "No collector configured") \
_(BUFFER_ALLOCATION_FAILURE, "Buffer allocation failure")
-typedef enum {
+typedef enum
+{
#define _(sym,str) LI_HIT_ERROR_##sym,
foreach_li_hit_error
#undef _
- LI_HIT_N_ERROR,
+ LI_HIT_N_ERROR,
} li_hit_error_t;
-static char * li_hit_error_strings[] = {
+static char *li_hit_error_strings[] = {
#define _(sym,string) string,
foreach_li_hit_error
#undef _
};
-typedef enum {
+typedef enum
+{
LI_HIT_NEXT_ETHERNET,
LI_HIT_N_NEXT,
} li_hit_next_t;
static uword
li_hit_node_fn (vlib_main_t * vm,
- vlib_node_runtime_t * node,
- vlib_frame_t * frame)
+ vlib_node_runtime_t * node, vlib_frame_t * frame)
{
- u32 n_left_from, * from, * to_next;
+ u32 n_left_from, *from, *to_next;
li_hit_next_t next_index;
- vlib_frame_t * int_frame = 0;
- u32 * to_int_next = 0;
- li_main_t * lm = &li_main;
-
+ vlib_frame_t *int_frame = 0;
+ u32 *to_int_next = 0;
+ li_main_t *lm = &li_main;
+
from = vlib_frame_vector_args (frame);
n_left_from = frame->n_vectors;
next_index = node->cached_next_index;
if (PREDICT_FALSE (vec_len (lm->collectors) == 0))
{
- vlib_node_increment_counter (vm, li_hit_node.index,
- LI_HIT_ERROR_NO_COLLECTOR,
- n_left_from);
+ vlib_node_increment_counter (vm, li_hit_node.index,
+ LI_HIT_ERROR_NO_COLLECTOR, n_left_from);
}
else
{
@@ -92,32 +94,31 @@ li_hit_node_fn (vlib_main_t * vm,
int_frame = vlib_get_frame_to_node (vm, ip4_lookup_node.index);
to_int_next = vlib_frame_vector_args (int_frame);
}
-
+
while (n_left_from > 0)
{
u32 n_left_to_next;
- vlib_get_next_frame (vm, node, next_index,
- to_next, n_left_to_next);
+ vlib_get_next_frame (vm, node, next_index, to_next, n_left_to_next);
#if 0
while (n_left_from >= 4 && n_left_to_next >= 2)
{
- u32 next0 = LI_HIT_NEXT_INTERFACE_OUTPUT;
- u32 next1 = LI_HIT_NEXT_INTERFACE_OUTPUT;
- u32 sw_if_index0, sw_if_index1;
- u8 tmp0[6], tmp1[6];
- ethernet_header_t *en0, *en1;
- u32 bi0, bi1;
- vlib_buffer_t * b0, * b1;
-
+ u32 next0 = LI_HIT_NEXT_INTERFACE_OUTPUT;
+ u32 next1 = LI_HIT_NEXT_INTERFACE_OUTPUT;
+ u32 sw_if_index0, sw_if_index1;
+ u8 tmp0[6], tmp1[6];
+ ethernet_header_t *en0, *en1;
+ u32 bi0, bi1;
+ vlib_buffer_t *b0, *b1;
+
/* Prefetch next iteration. */
{
- vlib_buffer_t * p2, * p3;
-
+ vlib_buffer_t *p2, *p3;
+
p2 = vlib_get_buffer (vm, from[2]);
p3 = vlib_get_buffer (vm, from[3]);
-
+
vlib_prefetch_buffer_header (p2, LOAD);
vlib_prefetch_buffer_header (p3, LOAD);
@@ -125,7 +126,7 @@ li_hit_node_fn (vlib_main_t * vm,
CLIB_PREFETCH (p3->data, CLIB_CACHE_LINE_BYTES, STORE);
}
- /* speculatively enqueue b0 and b1 to the current next frame */
+ /* speculatively enqueue b0 and b1 to the current next frame */
to_next[0] = bi0 = from[0];
to_next[1] = bi1 = from[1];
from += 2;
@@ -136,58 +137,58 @@ li_hit_node_fn (vlib_main_t * vm,
b0 = vlib_get_buffer (vm, bi0);
b1 = vlib_get_buffer (vm, bi1);
- /* $$$$$ Dual loop: process 2 x packets here $$$$$ */
- ASSERT (b0->current_data == 0);
- ASSERT (b1->current_data == 0);
-
- en0 = vlib_buffer_get_current (b0);
- en1 = vlib_buffer_get_current (b1);
-
- sw_if_index0 = vnet_buffer(b0)->sw_if_index[VLIB_RX];
- sw_if_index1 = vnet_buffer(b1)->sw_if_index[VLIB_RX];
-
- /* Send pkt back out the RX interface */
- vnet_buffer(b0)->sw_if_index[VLIB_TX] = sw_if_index0;
- vnet_buffer(b1)->sw_if_index[VLIB_TX] = sw_if_index1;
-
- /* $$$$$ End of processing 2 x packets $$$$$ */
-
- if (PREDICT_FALSE((node->flags & VLIB_NODE_FLAG_TRACE)))
- {
- if (b0->flags & VLIB_BUFFER_IS_TRACED)
- {
- li_hit_trace_t *t =
- vlib_add_trace (vm, node, b0, sizeof (*t));
- t->sw_if_index = sw_if_index0;
- t->next_index = next0;
- }
- if (b1->flags & VLIB_BUFFER_IS_TRACED)
- {
- li_hit_trace_t *t =
- vlib_add_trace (vm, node, b1, sizeof (*t));
- t->sw_if_index = sw_if_index1;
- t->next_index = next1;
- }
- }
-
- /* verify speculative enqueues, maybe switch current next frame */
- vlib_validate_buffer_enqueue_x2 (vm, node, next_index,
- to_next, n_left_to_next,
- bi0, bi1, next0, next1);
- }
+ /* $$$$$ Dual loop: process 2 x packets here $$$$$ */
+ ASSERT (b0->current_data == 0);
+ ASSERT (b1->current_data == 0);
+
+ en0 = vlib_buffer_get_current (b0);
+ en1 = vlib_buffer_get_current (b1);
+
+ sw_if_index0 = vnet_buffer (b0)->sw_if_index[VLIB_RX];
+ sw_if_index1 = vnet_buffer (b1)->sw_if_index[VLIB_RX];
+
+ /* Send pkt back out the RX interface */
+ vnet_buffer (b0)->sw_if_index[VLIB_TX] = sw_if_index0;
+ vnet_buffer (b1)->sw_if_index[VLIB_TX] = sw_if_index1;
+
+ /* $$$$$ End of processing 2 x packets $$$$$ */
+
+ if (PREDICT_FALSE ((node->flags & VLIB_NODE_FLAG_TRACE)))
+ {
+ if (b0->flags & VLIB_BUFFER_IS_TRACED)
+ {
+ li_hit_trace_t *t =
+ vlib_add_trace (vm, node, b0, sizeof (*t));
+ t->sw_if_index = sw_if_index0;
+ t->next_index = next0;
+ }
+ if (b1->flags & VLIB_BUFFER_IS_TRACED)
+ {
+ li_hit_trace_t *t =
+ vlib_add_trace (vm, node, b1, sizeof (*t));
+ t->sw_if_index = sw_if_index1;
+ t->next_index = next1;
+ }
+ }
+
+ /* verify speculative enqueues, maybe switch current next frame */
+ vlib_validate_buffer_enqueue_x2 (vm, node, next_index,
+ to_next, n_left_to_next,
+ bi0, bi1, next0, next1);
+ }
#endif /* $$$ dual-loop off */
while (n_left_from > 0 && n_left_to_next > 0)
{
- u32 bi0;
- vlib_buffer_t * b0;
- vlib_buffer_t * c0;
- ip4_udp_header_t * iu0;
- ip4_header_t * ip0;
- udp_header_t * udp0;
- u32 next0 = LI_HIT_NEXT_ETHERNET;
-
- /* speculatively enqueue b0 to the current next frame */
+ u32 bi0;
+ vlib_buffer_t *b0;
+ vlib_buffer_t *c0;
+ ip4_udp_header_t *iu0;
+ ip4_header_t *ip0;
+ udp_header_t *udp0;
+ u32 next0 = LI_HIT_NEXT_ETHERNET;
+
+ /* speculatively enqueue b0 to the current next frame */
bi0 = from[0];
to_next[0] = bi0;
from += 1;
@@ -196,54 +197,53 @@ li_hit_node_fn (vlib_main_t * vm,
n_left_to_next -= 1;
b0 = vlib_get_buffer (vm, bi0);
- if (PREDICT_TRUE(to_int_next != 0))
- {
- /* Make an intercept copy. This can fail. */
- c0 = vlib_buffer_copy (vm, b0);
-
- if (PREDICT_FALSE (c0 == 0))
- {
- vlib_node_increment_counter
- (vm, node->node_index,
- LI_HIT_ERROR_BUFFER_ALLOCATION_FAILURE, 1);
- goto skip;
- }
-
- vlib_buffer_advance(c0, -sizeof(*iu0));
-
- iu0 = vlib_buffer_get_current(c0);
- ip0 = &iu0->ip4;
-
- ip0->ip_version_and_header_length = 0x45;
- ip0->ttl = 254;
- ip0->protocol = IP_PROTOCOL_UDP;
-
- ip0->src_address.as_u32 = lm->src_addrs[0].as_u32;
- ip0->dst_address.as_u32 = lm->collectors[0].as_u32;
- ip0->length = vlib_buffer_length_in_chain (vm, c0);
- ip0->checksum = ip4_header_checksum (ip0);
-
- udp0 = &iu0->udp;
- udp0->src_port = udp0->dst_port =
- clib_host_to_net_u16(lm->ports[0]);
- udp0->checksum = 0;
- udp0->length =
- clib_net_to_host_u16 (vlib_buffer_length_in_chain (vm , b0));
-
- to_int_next [0] = vlib_get_buffer_index (vm, c0);
- to_int_next++;
- }
-
- skip:
- if (PREDICT_FALSE((node->flags & VLIB_NODE_FLAG_TRACE)
- && (b0->flags & VLIB_BUFFER_IS_TRACED)))
- {
- li_hit_trace_t *t =
- vlib_add_trace (vm, node, b0, sizeof (*t));
- t->next_index = next0;
- }
-
- /* verify speculative enqueue, maybe switch current next frame */
+ if (PREDICT_TRUE (to_int_next != 0))
+ {
+ /* Make an intercept copy. This can fail. */
+ c0 = vlib_buffer_copy (vm, b0);
+
+ if (PREDICT_FALSE (c0 == 0))
+ {
+ vlib_node_increment_counter
+ (vm, node->node_index,
+ LI_HIT_ERROR_BUFFER_ALLOCATION_FAILURE, 1);
+ goto skip;
+ }
+
+ vlib_buffer_advance (c0, -sizeof (*iu0));
+
+ iu0 = vlib_buffer_get_current (c0);
+ ip0 = &iu0->ip4;
+
+ ip0->ip_version_and_header_length = 0x45;
+ ip0->ttl = 254;
+ ip0->protocol = IP_PROTOCOL_UDP;
+
+ ip0->src_address.as_u32 = lm->src_addrs[0].as_u32;
+ ip0->dst_address.as_u32 = lm->collectors[0].as_u32;
+ ip0->length = vlib_buffer_length_in_chain (vm, c0);
+ ip0->checksum = ip4_header_checksum (ip0);
+
+ udp0 = &iu0->udp;
+ udp0->src_port = udp0->dst_port =
+ clib_host_to_net_u16 (lm->ports[0]);
+ udp0->checksum = 0;
+ udp0->length =
+ clib_net_to_host_u16 (vlib_buffer_length_in_chain (vm, b0));
+
+ to_int_next[0] = vlib_get_buffer_index (vm, c0);
+ to_int_next++;
+ }
+
+ skip:
+ if (PREDICT_FALSE ((node->flags & VLIB_NODE_FLAG_TRACE)
+ && (b0->flags & VLIB_BUFFER_IS_TRACED)))
+ {
+ li_hit_trace_t *t = vlib_add_trace (vm, node, b0, sizeof (*t));
+ t->next_index = next0;
+ }
+
+ /* verify speculative enqueue, maybe switch current next frame */
vlib_validate_buffer_enqueue_x1 (vm, node, next_index,
to_next, n_left_to_next,
bi0, next0);
@@ -258,18 +258,19 @@ li_hit_node_fn (vlib_main_t * vm,
vlib_put_frame_to_node (vm, ip4_lookup_node.index, int_frame);
}
- vlib_node_increment_counter (vm, li_hit_node.index,
- LI_HIT_ERROR_HITS, frame->n_vectors);
+ vlib_node_increment_counter (vm, li_hit_node.index,
+ LI_HIT_ERROR_HITS, frame->n_vectors);
return frame->n_vectors;
}
+/* *INDENT-OFF* */
VLIB_REGISTER_NODE (li_hit_node) = {
.function = li_hit_node_fn,
.name = "li-hit",
.vector_size = sizeof (u32),
.format_trace = format_li_hit_trace,
.type = VLIB_NODE_TYPE_INTERNAL,
-
+
.n_errors = ARRAY_LEN(li_hit_error_strings),
.error_strings = li_hit_error_strings,
@@ -280,6 +281,13 @@ VLIB_REGISTER_NODE (li_hit_node) = {
[LI_HIT_NEXT_ETHERNET] = "ethernet-input-not-l2",
},
};
+/* *INDENT-ON* */
VLIB_NODE_FUNCTION_MULTIARCH (li_hit_node, li_hit_node_fn)
-
+/*
+ * fd.io coding-style-patch-verification: ON
+ *
+ * Local Variables:
+ * eval: (c-set-style "gnu")
+ * End:
+ */