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authorAndrew Yourtchenko <ayourtch@gmail.com>2022-08-26 13:13:20 +0000
committerDamjan Marion <dmarion@0xa5.net>2022-08-30 14:10:52 +0000
commita21b38e17ac5e04b6ded55904dc522bfca4933a5 (patch)
treeff7ca6c772fc9e9fc3e73c55d6bfd4bc6432c409 /src/vlib
parent3c285b54aa9a17fabf356787723bf68b221ffe5e (diff)
vlib: fix coverity 277203
Fix integer overflow. Type: fix Signed-off-by: Andrew Yourtchenko <ayourtch@gmail.com> Change-Id: I72de6f88be064f188204d0f6d3167a3a8d7de58d
Diffstat (limited to 'src/vlib')
-rw-r--r--src/vlib/dma/cli.c2
1 files changed, 1 insertions, 1 deletions
diff --git a/src/vlib/dma/cli.c b/src/vlib/dma/cli.c
index 0ca4a9b6778..1db59c81a2f 100644
--- a/src/vlib/dma/cli.c
+++ b/src/vlib/dma/cli.c
@@ -109,7 +109,7 @@ test_dma_command_fn (vlib_main_t *vm, unformat_input_t *input,
u32 port_allocator_seed;
- fill_random_data (from, cfg.max_transfers * rsz);
+ fill_random_data (from, (uword) cfg.max_transfers * rsz);
b = vlib_dma_batch_new (vm, config_index);
vlib_dma_batch_set_cookie (vm, b, 0x12345678);
>168 169 170 171 172 173 174 175 176 177 178 179 180 181 182 183 184 185 186 187 188 189 190 191 192 193 194 195 196 197 198 199 200 201 202 203 204 205 206 207 208 209 210 211 212 213 214 215 216 217 218 219 
/*
 * Copyright (c) 2016 Cisco and/or its affiliates.
 * Licensed under the Apache License, Version 2.0 (the "License");
 * you may not use this file except in compliance with the License.
 * You may obtain a copy of the License at:
 *
 *     http://www.apache.org/licenses/LICENSE-2.0
 *
 * Unless required by applicable law or agreed to in writing, software
 * distributed under the License is distributed on an "AS IS" BASIS,
 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 * See the License for the specific language governing permissions and
 * limitations under the License.
 */

/**
 * @file
 * @brief Definitions for punt infrastructure.
 */
#ifndef included_punt_h
#define included_punt_h

#include <linux/un.h>
#include <stdbool.h>
#include <vnet/ip/ip.h>

#define foreach_punt_type                       \
  _(L4, "l4")                                   \
  _(EXCEPTION, "exception")                     \
  _(IP_PROTO, "ip-proto")

typedef enum punt_type_t_
{
#define _(v, s) PUNT_TYPE_##v,
  foreach_punt_type
#undef _
} punt_type_t;

typedef struct punt_l4_t_
{
  ip_address_family_t af;
  ip_protocol_t protocol;
  u16 port;
} punt_l4_t;

typedef struct punt_ip_proto_t_
{
  ip_address_family_t af;
  ip_protocol_t protocol;
} punt_ip_proto_t;

typedef struct punt_exception_t_
{
  vlib_punt_reason_t reason;
} punt_exception_t;

typedef struct punt_union_t_
{
  punt_exception_t exception;
  punt_l4_t l4;
  punt_ip_proto_t ip_proto;
} punt_union_t;

typedef struct punt_reg_t_
{
  punt_type_t type;
  punt_union_t punt;
} punt_reg_t;


clib_error_t *vnet_punt_add_del (vlib_main_t * vm,
				 const punt_reg_t * pr, bool is_add);
clib_error_t *vnet_punt_socket_add (vlib_main_t * vm,
				    u32 header_version,
				    const punt_reg_t * pr,
				    char *client_pathname);
clib_error_t *vnet_punt_socket_del (vlib_main_t * vm, const punt_reg_t * pr);
char *vnet_punt_get_server_pathname (void);

enum punt_action_e
{
  PUNT_L2 = 0,
  PUNT_IP4_ROUTED,
  PUNT_IP6_ROUTED,
};

/*
 * Packet descriptor header. Version 1
 * If this header changes, the version must also change to notify clients.
 */
#define PUNT_PACKETDESC_VERSION 1
typedef struct __attribute__ ((packed))
{
  u32 sw_if_index;		/* RX or TX interface */
  enum punt_action_e action;
} punt_packetdesc_t;

/*
 * Client registration
 */
typedef struct
{
  punt_reg_t reg;
  struct sockaddr_un caddr;
} punt_client_t;

typedef struct punt_client_db_t_
{
  void *clients_by_l4_port;
  u32 *clients_by_exception;
  void *clients_by_ip_proto;
} punt_client_db_t;

typedef struct punt_thread_data_t_
{
  struct iovec *iovecs;
} punt_thread_data_t;

typedef struct
{
  int socket_fd;
  char sun_path[sizeof (struct sockaddr_un)];
  punt_client_db_t db;
  punt_client_t *punt_client_pool;
  u32 clib_file_index;
  bool is_configured;
  vlib_node_t *interface_output_node;
  u32 *ready_fds;
  u32 *rx_buffers;
  punt_thread_data_t *thread_data;
  vlib_punt_hdl_t hdl;
} punt_main_t;

extern punt_main_t punt_main;

typedef walk_rc_t (*punt_client_walk_cb_t) (const punt_client_t * pc,
					    void *ctx);
extern void punt_client_walk (punt_type_t pt,
			      punt_client_walk_cb_t cb, void *ctx);

/*
 * inlines for the data-plane
 */
static_always_inline u32
punt_client_l4_mk_key (ip_address_family_t af, u16 port)
{
  return (af << BITS (port) | port);
}

static_always_inline punt_client_t *
punt_client_l4_get (ip_address_family_t af, u16 port)
{
  punt_main_t *pm = &punt_main;
  uword *p;

  p = hash_get (pm->db.clients_by_l4_port, punt_client_l4_mk_key (af, port));

  if (p)
    return (pool_elt_at_index (pm->punt_client_pool, p[0]));

  return (NULL);
}

static_always_inline u32
punt_client_ip_proto_mk_key (ip_address_family_t af, ip_protocol_t proto)
{
  return (af << 16 | proto);
}

static_always_inline punt_client_t *
punt_client_ip_proto_get (ip_address_family_t af, ip_protocol_t proto)
{
  punt_main_t *pm = &punt_main;
  uword *p;

  p =
    hash_get (pm->db.clients_by_ip_proto,
	      punt_client_ip_proto_mk_key (af, proto));

  if (p)
    return (pool_elt_at_index (pm->punt_client_pool, p[0]));

  return (NULL);
}

static_always_inline punt_client_t *
punt_client_exception_get (vlib_punt_reason_t reason)
{
  punt_main_t *pm = &punt_main;
  u32 pci;

  if (reason >= vec_len (pm->db.clients_by_exception))
    return (NULL);

  pci = pm->db.clients_by_exception[reason];

  if (~0 != pci)
    return (pool_elt_at_index (pm->punt_client_pool, pci));

  return (NULL);
}

extern vlib_node_registration_t udp4_punt_node;
extern vlib_node_registration_t udp6_punt_node;
extern vlib_node_registration_t udp4_punt_socket_node;
extern vlib_node_registration_t udp6_punt_socket_node;
extern vlib_node_registration_t ip4_proto_punt_socket_node;
extern vlib_node_registration_t ip6_proto_punt_socket_node;
extern vlib_node_registration_t punt_socket_rx_node;

#endif

/*
 * fd.io coding-style-patch-verification: ON
 *
 * Local Variables:
 * eval: (c-set-style "gnu")
 * End:
 */