ng_source.c File Reference

#include <sys/cdefs.h>
#include <sys/param.h>
#include <sys/systm.h>
#include <sys/errno.h>
#include <sys/kernel.h>
#include <sys/malloc.h>
#include <sys/mbuf.h>
#include <sys/socket.h>
#include <sys/syslog.h>
#include <net/if.h>
#include <net/if_var.h>
#include <netgraph/ng_message.h>
#include <netgraph/netgraph.h>
#include <netgraph/ng_parse.h>
#include <netgraph/ng_ether.h>
#include <netgraph/ng_source.h>

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Data Structures
struct	privdata

Macros
#define	NG_SOURCE_INTR_TICKS   1
#define	NG_SOURCE_DRIVER_IFQ_MAXLEN   (4*1024)
#define	mtod_off(m, off, t)   ((t)(mtod((m),caddr_t)+(off)))
#define	NG_SOURCE_ACTIVE   (NGF_TYPE1)

Typedefs
typedef struct privdata *	sc_p

Functions
	__FBSDID ("$FreeBSD$")
static void	ng_source_intr (node_p, hook_p, void *, int)
static void	ng_source_clr_data (sc_p)
static int	ng_source_start (sc_p, uint64_t)
static void	ng_source_stop (sc_p)
static int	ng_source_send (sc_p, int, int *)
static int	ng_source_store_output_ifp (sc_p, char *)
static void	ng_source_packet_mod (sc_p, struct mbuf *, int, int, caddr_t, int)
static void	ng_source_mod_counter (sc_p sc, struct ng_source_embed_cnt_info *cnt, struct mbuf *m, int increment)
static int	ng_source_dup_mod (sc_p, struct mbuf *, struct mbuf **)
	NETGRAPH_INIT (source, &ng_source_typestruct)
static int	ng_source_set_autosrc (sc_p, uint32_t)
static int	ng_source_constructor (node_p node)
static int	ng_source_newhook (node_p node, hook_p hook, const char *name)
static int	ng_source_connect (hook_p hook)
static int	ng_source_rcvmsg (node_p node, item_p item, hook_p lasthook)
static int	ng_source_rcvdata (hook_p hook, item_p item)
static int	ng_source_rmnode (node_p node)
static int	ng_source_disconnect (hook_p hook)

Variables
static ng_constructor_t	ng_source_constructor
static ng_rcvmsg_t	ng_source_rcvmsg
static ng_shutdown_t	ng_source_rmnode
static ng_newhook_t	ng_source_newhook
static ng_connect_t	ng_source_connect
static ng_rcvdata_t	ng_source_rcvdata
static ng_disconnect_t	ng_source_disconnect
static const struct ng_parse_struct_field	ng_source_timeval_type_fields []
const struct ng_parse_type	ng_source_timeval_type
static const struct ng_parse_struct_field	ng_source_stats_type_fields [] = NG_SOURCE_STATS_TYPE_INFO
static const struct ng_parse_type	ng_source_stats_type
static const struct ng_parse_struct_field	ng_source_embed_type_fields []
static const struct ng_parse_type	ng_source_embed_type
static const struct ng_parse_struct_field	ng_source_embed_cnt_type_fields []
static const struct ng_parse_type	ng_source_embed_cnt_type
static const struct ng_cmdlist	ng_source_cmds []
static struct ng_type	ng_source_typestruct

Macro Definition Documentation

mtod_off

#define mtod_off	(		m,
			off,
			t
	)		((t)(mtod((m),caddr_t)+(off)))

Definition at line 80 of file ng_source.c.

NG_SOURCE_ACTIVE

#define NG_SOURCE_ACTIVE   (NGF_TYPE1)

Definition at line 100 of file ng_source.c.

NG_SOURCE_DRIVER_IFQ_MAXLEN

#define NG_SOURCE_DRIVER_IFQ_MAXLEN   (4*1024)

Definition at line 78 of file ng_source.c.

NG_SOURCE_INTR_TICKS

#define NG_SOURCE_INTR_TICKS   1

Definition at line 77 of file ng_source.c.

Typedef Documentation

sc_p

typedef struct privdata* sc_p

Definition at line 97 of file ng_source.c.

Function Documentation

__FBSDID()

__FBSDID

(

"$FreeBSD$"

)

NETGRAPH_INIT()

NETGRAPH_INIT	(	source	,
		&	ng_source_typestruct
	)

ng_source_clr_data()

static void ng_source_clr_data ( sc_p  sc )

static

Definition at line 669 of file ng_source.c.

References NG_FREE_M.

Referenced by ng_source_rcvmsg(), and ng_source_rmnode().

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ng_source_connect()

static int ng_source_connect ( hook_p  hook )

static

Definition at line 317 of file ng_source.c.

References NG_HOOK_NODE, NG_MKMESSAGE, NG_NODE_ID, NG_NODE_PRIVATE, NG_PEER_NODE, NG_SEND_MSG_ID, NGM_ETHER_COOKIE, NGM_ETHER_GET_IFNAME, and ng_async_private::node.

ng_source_constructor()

static int ng_source_constructor ( node_p  node )

static

Definition at line 279 of file ng_source.c.

References ng_callout_init, NG_NODE_SET_PRIVATE, and ng_async_private::node.

ng_source_disconnect()

static int ng_source_disconnect ( hook_p  hook )

static

Definition at line 603 of file ng_source.c.

References NG_HOOK_NODE, NG_NODE_NUMHOOKS, NG_NODE_PRIVATE, and ng_rmnode_self().

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ng_source_dup_mod()

static int ng_source_dup_mod ( sc_p  sc, struct mbuf *  m0, struct mbuf **  m_ptr  )

static

Definition at line 877 of file ng_source.c.

References ng_source_embed_info::flags, ng_source_embed_cnt_info::flags, ng_source_embed_cnt_info::increment, NG_SOURCE_COUNTERS, ng_source_mod_counter(), ng_source_packet_mod(), NGM_SOURCE_EMBED_ENABLE, NGM_SOURCE_INC_CNT_PER_LIST, and ng_source_embed_info::offset.

Referenced by ng_source_send().

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ng_source_intr()

static void ng_source_intr ( node_p  node, hook_p  hook, void *  arg1, int  arg2  )

static

Definition at line 729 of file ng_source.c.

References ng_node::nd_flags, ng_callout(), NG_SOURCE_ACTIVE, ng_source_intr(), NG_SOURCE_INTR_TICKS, ng_source_send(), ng_source_stop(), ng_async_private::node, packets, and ng_async_private::stats.

Referenced by ng_source_intr(), and ng_source_start().

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ng_source_mod_counter()

static void ng_source_mod_counter ( sc_p  sc, struct ng_source_embed_cnt_info *  cnt, struct mbuf *  m, int  increment  )

static

Definition at line 849 of file ng_source.c.

References ng_source_embed_cnt_info::flags, ng_source_embed_cnt_info::max_val, ng_source_embed_cnt_info::min_val, ng_source_embed_cnt_info::next_val, ng_source_packet_mod(), ng_source_embed_cnt_info::offset, and ng_source_embed_cnt_info::width.

Referenced by ng_source_dup_mod().

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ng_source_newhook()

static int ng_source_newhook ( node_p  node, hook_p  hook, const char *  name  )

static

Definition at line 297 of file ng_source.c.

References name, NG_NODE_PRIVATE, NG_SOURCE_HOOK_INPUT, NG_SOURCE_HOOK_OUTPUT, and ng_async_private::stats.

ng_source_packet_mod()

static void ng_source_packet_mod ( sc_p  sc, struct mbuf *  m, int  offset, int  len, caddr_t  cp, int  flags  )

static

Definition at line 834 of file ng_source.c.

References mtod_off.

Referenced by ng_source_dup_mod(), and ng_source_mod_counter().

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ng_source_rcvdata()

static int ng_source_rcvdata ( hook_p  hook, item_p  item  )

static

Definition at line 553 of file ng_source.c.

References NG_FREE_ITEM, NG_FREE_M, NG_HOOK_NODE, NG_NODE_PRIVATE, and NGI_GET_M.

ng_source_rcvmsg()

static int ng_source_rcvmsg ( node_p  node, item_p  item, hook_p  lasthook  )

static

Definition at line 348 of file ng_source.c.

References ng_mesg::ng_msghdr::arglen, ng_mesg::ng_msghdr::cmd, ng_mesg::data, ng_mesg::ng_msghdr::flags, ng_mesg::header, ng_source_embed_cnt_info::index, ng_node::nd_flags, NG_FREE_MSG, NG_MKRESPONSE, NG_NODE_PRIVATE, NG_RESPOND_MSG, NG_SOURCE_ACTIVE, ng_source_clr_data(), NG_SOURCE_COUNTERS, ng_source_set_autosrc(), ng_source_start(), ng_source_stop(), ng_source_store_output_ifp(), NGF_RESP, NGI_GET_MSG, NGM_ETHER_COOKIE, NGM_ETHER_GET_IFNAME, NGM_SOURCE_CLR_DATA, NGM_SOURCE_CLR_STATS, NGM_SOURCE_COOKIE, NGM_SOURCE_GET_COUNTER, NGM_SOURCE_GET_STATS, NGM_SOURCE_GET_TIMESTAMP, NGM_SOURCE_GETCLR_STATS, NGM_SOURCE_SET_COUNTER, NGM_SOURCE_SET_TIMESTAMP, NGM_SOURCE_SETIFACE, NGM_SOURCE_SETPPS, NGM_SOURCE_START, NGM_SOURCE_STOP, ng_async_private::node, packets, ng_async_private::stats, ng_mesg::ng_msghdr::typecookie, and ng_source_embed_cnt_info::width.

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ng_source_rmnode()

static int ng_source_rmnode ( node_p  node )

static

Definition at line 586 of file ng_source.c.

References NG_NODE_PRIVATE, NG_NODE_SET_PRIVATE, NG_NODE_UNREF, ng_source_clr_data(), and ng_source_stop().

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ng_source_send()

static int ng_source_send ( sc_p  sc, int  tosend, int *  sent_p  )

static

Definition at line 776 of file ng_source.c.

References ng_node::nd_flags, NG_SEND_DATA_ONLY, NG_SOURCE_ACTIVE, ng_source_dup_mod(), ng_async_private::node, and ng_async_private::stats.

Referenced by ng_source_intr().

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ng_source_set_autosrc()

static int ng_source_set_autosrc ( sc_p  sc, uint32_t  flag  )

static

Definition at line 650 of file ng_source.c.

References ng_mesg::data, NG_MKMESSAGE, NG_SEND_MSG_HOOK, NGM_ETHER_COOKIE, NGM_ETHER_SET_AUTOSRC, and ng_async_private::node.

Referenced by ng_source_rcvmsg().

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ng_source_start()

static int ng_source_start ( sc_p  sc, uint64_t  packets  )

static

Definition at line 687 of file ng_source.c.

References ng_node::nd_flags, ng_callout(), NG_SOURCE_ACTIVE, ng_source_intr(), ng_async_private::node, packets, and ng_async_private::stats.

Referenced by ng_source_rcvmsg().

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ng_source_stop()

static void ng_source_stop ( sc_p  sc )

static

Definition at line 714 of file ng_source.c.

References ng_node::nd_flags, ng_uncallout(), ng_async_private::node, and ng_async_private::stats.

Referenced by ng_source_intr(), ng_source_rcvmsg(), and ng_source_rmnode().

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ng_source_store_output_ifp()

static int ng_source_store_output_ifp ( sc_p  sc, char *  ifname  )

static

Definition at line 619 of file ng_source.c.

References NG_SOURCE_DRIVER_IFQ_MAXLEN.

Referenced by ng_source_rcvmsg().

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Variable Documentation

ng_source_cmds

const struct ng_cmdlist ng_source_cmds[]

static

Definition at line 170 of file ng_source.c.

ng_source_connect

ng_connect_t ng_source_connect

static

Definition at line 107 of file ng_source.c.

ng_source_constructor

ng_constructor_t ng_source_constructor

static

Definition at line 103 of file ng_source.c.

ng_source_disconnect

ng_disconnect_t ng_source_disconnect

static

Definition at line 109 of file ng_source.c.

ng_source_embed_cnt_type

const struct ng_parse_type ng_source_embed_cnt_type

static

Initial value:

= {
        &ng_parse_struct_type,
        &ng_source_embed_cnt_type_fields
}

Definition at line 164 of file ng_source.c.

ng_source_embed_cnt_type_fields

const struct ng_parse_struct_field ng_source_embed_cnt_type_fields[]

static

Initial value:

=
        NG_SOURCE_EMBED_CNT_TYPE_INFO

Definition at line 162 of file ng_source.c.

ng_source_embed_type

const struct ng_parse_type ng_source_embed_type

static

Initial value:

= {
        &ng_parse_struct_type,
        &ng_source_embed_type_fields
}

Definition at line 156 of file ng_source.c.

ng_source_embed_type_fields

const struct ng_parse_struct_field ng_source_embed_type_fields[]

static

Initial value:

=
        NG_SOURCE_EMBED_TYPE_INFO

Definition at line 154 of file ng_source.c.

ng_source_newhook

ng_newhook_t ng_source_newhook

static

Definition at line 106 of file ng_source.c.

ng_source_rcvdata

ng_rcvdata_t ng_source_rcvdata

static

Definition at line 108 of file ng_source.c.

ng_source_rcvmsg

ng_rcvmsg_t ng_source_rcvmsg

static

Definition at line 104 of file ng_source.c.

ng_source_rmnode

ng_shutdown_t ng_source_rmnode

static

Definition at line 105 of file ng_source.c.

ng_source_stats_type

const struct ng_parse_type ng_source_stats_type

static

Initial value:

= {
        &ng_parse_struct_type,
        &ng_source_stats_type_fields
}

Definition at line 148 of file ng_source.c.

ng_source_stats_type_fields

const struct ng_parse_struct_field ng_source_stats_type_fields[] = NG_SOURCE_STATS_TYPE_INFO

static

Definition at line 146 of file ng_source.c.

ng_source_timeval_type

const struct ng_parse_type ng_source_timeval_type

Initial value:

= {
        &ng_parse_struct_type,
        &ng_source_timeval_type_fields
}

Definition at line 140 of file ng_source.c.

ng_source_timeval_type_fields

const struct ng_parse_struct_field ng_source_timeval_type_fields[]

static

Initial value:

= {
 
 
 
        { "tv_sec",             &ng_parse_int64_type    },
 
 
 
 
        { "tv_usec",            &ng_parse_int32_type    },
 
        { NULL }
}

Definition at line 127 of file ng_source.c.

ng_source_typestruct

struct ng_type ng_source_typestruct

static

Initial value:

= {
        .version =      NG_ABI_VERSION,
        .name =         NG_SOURCE_NODE_TYPE,
        .constructor =  ng_source_constructor,
        .rcvmsg =       ng_source_rcvmsg,
        .shutdown =     ng_source_rmnode,
        .newhook =      ng_source_newhook,
        .connect =      ng_source_connect,
        .rcvdata =      ng_source_rcvdata,
        .disconnect =   ng_source_disconnect,
        .cmdlist =      ng_source_cmds,
}

Definition at line 259 of file ng_source.c.