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net/netdev: Add CONFIG_NETDEV_CAN_FILTER_IOCTL

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This commit is contained in:
JacobCrabill 2022-04-15 14:40:00 -07:00 committed by Mateusz Szafoni
parent 5f82c82e4d
commit 4610aee973
6 changed files with 99 additions and 36 deletions
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80
include/net/if.h
View file

@ -149,6 +149,20 @@ struct can_ioctl_data_s
uint16_t data_samplep; /* Data phase sample point % */
};
/* Structure passed to add or remove hardware-level CAN ID filters
* SIOCxCANSTDFILTER / SIOCxCANEXTFILTER ioctl commands.
*/
struct can_ioctl_filter_s
{
uint32_t fid1; /* 11- or 29-bit ID (context dependent). For dual match or
* for the lower address in a range of addresses */
uint32_t fid2; /* 11- or 29-bit ID. For dual match, address mask or for
* upper address in address range */
uint8_t ftype; /* See CAN_FILTER_* definitions */
uint8_t fprio; /* See CAN_MSGPRIO_* definitions */
};
/* There are two forms of the I/F request structure.
* One for IPv6 and one for IPv4.
* Notice that they are (and must be) cast compatible and really different
@ -159,21 +173,22 @@ struct can_ioctl_data_s
struct lifreq
{
char lifr_name[IFNAMSIZ]; /* Network device name (e.g. "eth0") */
int16_t lifr_ifindex; /* Interface index */
char lifr_name[IFNAMSIZ]; /* Network device name (e.g. "eth0") */
int16_t lifr_ifindex; /* Interface index */
union
{
struct sockaddr_storage lifru_addr; /* IP Address */
struct sockaddr_storage lifru_dstaddr; /* P-to-P Address */
struct sockaddr_storage lifru_broadaddr; /* Broadcast address */
struct sockaddr_storage lifru_netmask; /* Netmask */
struct sockaddr lifru_hwaddr; /* MAC address */
int lifru_count; /* Number of devices */
int lifru_mtu; /* MTU size */
uint8_t lifru_flags; /* Interface flags */
struct mii_ioctl_notify_s llfru_mii_notify; /* PHY event notification */
struct mii_ioctl_data_s lifru_mii_data; /* MII request data */
struct can_ioctl_data_s lifru_can_data; /* CAN bitrate request data */
struct sockaddr_storage lifru_addr; /* IP Address */
struct sockaddr_storage lifru_dstaddr; /* P-to-P Address */
struct sockaddr_storage lifru_broadaddr; /* Broadcast address */
struct sockaddr_storage lifru_netmask; /* Netmask */
struct sockaddr lifru_hwaddr; /* MAC address */
int lifru_count; /* Number of devices */
int lifru_mtu; /* MTU size */
uint8_t lifru_flags; /* Interface flags */
struct mii_ioctl_notify_s llfru_mii_notify; /* PHY event notification */
struct mii_ioctl_data_s lifru_mii_data; /* MII request data */
struct can_ioctl_data_s lifru_can_data; /* CAN bitrate request data */
struct can_ioctl_filter_s lifru_can_filter; /* CAN filter request data */
} lifr_ifru;
};
@ -196,36 +211,37 @@ struct lifreq
struct lifconf
{
size_t lifc_len; /* Size of buffer */
size_t lifc_len; /* Size of buffer */
union
{
FAR char *lifcu_buf; /* Buffer address */
FAR struct lifreq *lifcu_req; /* Array of ifreq structures */
FAR char *lifcu_buf; /* Buffer address */
FAR struct lifreq *lifcu_req; /* Array of ifreq structures */
} lifc_ifcu;
};
#define lifc_buf lifc_ifcu.lifcu_buf /* Buffer address */
#define lifc_req lifc_ifcu.lifcu_req /* Array of ifreq structures */
#define lifc_buf lifc_ifcu.lifcu_buf /* Buffer address */
#define lifc_req lifc_ifcu.lifcu_req /* Array of ifreq structures */
/* This is the I/F request that should be used with IPv4. */
struct ifreq
{
char ifr_name[IFNAMSIZ]; /* Network device name (e.g. "eth0") */
int16_t ifr_ifindex; /* Interface index */
char ifr_name[IFNAMSIZ]; /* Network device name (e.g. "eth0") */
int16_t ifr_ifindex; /* Interface index */
union
{
struct sockaddr ifru_addr; /* IP Address */
struct sockaddr ifru_dstaddr; /* P-to-P Address */
struct sockaddr ifru_broadaddr; /* Broadcast address */
struct sockaddr ifru_netmask; /* Netmask */
struct sockaddr ifru_hwaddr; /* MAC address */
int ifru_count; /* Number of devices */
int ifru_mtu; /* MTU size */
uint8_t ifru_flags; /* Interface flags */
struct mii_ioctl_notify_s ifru_mii_notify; /* PHY event notification */
struct mii_ioctl_data_s ifru_mii_data; /* MII request data */
struct can_ioctl_data_s ifru_can_data; /* CAN bitrate request data */
struct sockaddr ifru_addr; /* IP Address */
struct sockaddr ifru_dstaddr; /* P-to-P Address */
struct sockaddr ifru_broadaddr; /* Broadcast address */
struct sockaddr ifru_netmask; /* Netmask */
struct sockaddr ifru_hwaddr; /* MAC address */
int ifru_count; /* Number of devices */
int ifru_mtu; /* MTU size */
uint8_t ifru_flags; /* Interface flags */
struct mii_ioctl_notify_s ifru_mii_notify; /* PHY event notification */
struct mii_ioctl_data_s ifru_mii_data; /* MII request data */
struct can_ioctl_data_s ifru_can_data; /* CAN bitrate request data */
struct can_ioctl_filter_s ifru_can_filter; /* CAN filter request data */
} ifr_ifru;
};
@ -248,7 +264,7 @@ struct ifreq
struct ifconf
{
size_t ifc_len; /* Size of buffer */
size_t ifc_len; /* Size of buffer */
union
{
FAR char *ifcu_buf; /* Buffer address */

16
include/netpacket/can.h
View file

@ -82,6 +82,22 @@
#define CAN_RAW_TX_DEADLINE (__SO_PROTOCOL + 6)
/* Abort frame when deadline passed */
/* CAN filter support (Hardware level filtering) ****************************/
/* Some CAN hardware supports a notion of prioritizing messages that match
* filters. Only two priority levels are currently supported and are encoded
* as defined below:
*/
#define CAN_MSGPRIO_LOW 0
#define CAN_MSGPRIO_HIGH 1
/* Filter type. Not all CAN hardware will support all filter types. */
#define CAN_FILTER_MASK 0 /* Address match under a mask */
#define CAN_FILTER_DUAL 1 /* Dual address match */
#define CAN_FILTER_RANGE 2 /* Match a range of addresses */
/****************************************************************************
* Public Types
****************************************************************************/

8
include/nuttx/net/ioctl.h
View file

@ -112,8 +112,12 @@
/* SocketCAN ****************************************************************/
#define SIOCGCANBITRATE _SIOC(0x002C) /* Get bitrate from a CAN controller */
#define SIOCSCANBITRATE _SIOC(0x002D) /* Set bitrate of a CAN controller */
#define SIOCGCANBITRATE _SIOC(0x002C) /* Get bitrate from a CAN controller */
#define SIOCSCANBITRATE _SIOC(0x002D) /* Set bitrate of a CAN controller */
#define SIOCACANEXTFILTER _SIOC(0x002E) /* Add hardware-level exteneded ID filter */
#define SIOCDCANEXTFILTER _SIOC(0x002F) /* Delete hardware-level exteneded ID filter */
#define SIOCACANSTDFILTER _SIOC(0x0030) /* Add hardware-level standard ID filter */
#define SIOCDCANSTDFILTER _SIOC(0x0031) /* Delete hardware-level standard ID filter */
/****************************************************************************
* Public Type Definitions

2
net/can/Kconfig
View file

@ -31,7 +31,7 @@ config NET_CAN_HAVE_ERRORS
default n
config CAN_CONNS
int "Number of CAN connections"
int "Max number of CAN socket connections"
default 4
---help---
Maximum number of CAN connections (all tasks).

9
net/netdev/Kconfig
View file

@ -24,6 +24,15 @@ config NETDEV_CAN_BITRATE_IOCTL
---help---
Enable support for ioctl() commands to change CAN bitrate
config NETDEV_CAN_FILTER_IOCTL
bool "Enable CAN filter ioctl()"
default n
select NETDEV_IOCTL
depends on NET_CAN
---help---
Enable support for ioctl() commands to add/remove CAN hardware-level
filters (NOTE: Not supported by all drivers)
config NETDEV_WIRELESS_IOCTL
bool "Enable Wireless ioctl()"
default n

20
net/netdev/netdev_ioctl.c
View file

@ -1072,7 +1072,7 @@ static int netdev_ifr_ioctl(FAR struct socket *psock, int cmd,
if (dev && dev->d_ioctl)
{
struct can_ioctl_data_s *can_bitrate_data =
&req->ifr_ifru.ifru_can_data;
&req->ifr_ifru.ifru_can_data;
ret = dev->d_ioctl(dev, cmd,
(unsigned long)(uintptr_t)can_bitrate_data);
}
@ -1080,6 +1080,24 @@ static int netdev_ifr_ioctl(FAR struct socket *psock, int cmd,
break;
#endif
#if defined(CONFIG_NETDEV_IOCTL) && defined(CONFIG_NETDEV_CAN_FILTER_IOCTL)
case SIOCACANEXTFILTER: /* Add an extended-ID filter */
case SIOCDCANEXTFILTER: /* Delete an extended-ID filter */
case SIOCACANSTDFILTER: /* Add a standard-ID filter */
case SIOCDCANSTDFILTER: /* Delete a standard-ID filter */
{
dev = netdev_ifr_dev(req);
if (dev && dev->d_ioctl)
{
struct can_ioctl_filter_s *can_filter =
&req->ifr_ifru.ifru_can_filter;
ret = dev->d_ioctl(dev, cmd,
(unsigned long)(uintptr_t)can_filter);
}
}
break;
#endif
#ifdef CONFIG_NETDEV_IFINDEX
case SIOCGIFNAME: /* Get interface name */
{