xref: /illumos-gate/usr/src/man/man9f/net_protocol_lookup.9f (revision dd72704bd9e794056c558153663c739e2012d721)
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NET_PROTOCOL_LOOKUP 9F "Mar 5, 2012"
NAME
net_protocol_lookup - locate an implementation of a network layer protocol
SYNOPSIS
#include <sys/neti.h>

net_handle_t net_protocol_lookup(netid_t id, const char *protocol);
INTERFACE LEVEL
illumos DDI specific (illumos DDI).
PARAMETERS
id

network instance identifier.

family

name of the network protocol to find.

DESCRIPTION
The net_protocol_lookup() function attempts to locate a data structure that defines what capabilities it is exporting through this interface. The value returned by this call is guaranteed to be valid until it is passed into a call to net_protocol_release(9F), after which it should no longer be treated as valid.

The protocol must be a registered name of a network protocol that has been registered. The symbols NHF_INET and NHF_INET6 should be passed to net_protocol_lookup() as the protocol name to gain access to either IPv4 or IPv6 respectively.

RETURN VALUES
The net_protocol_lookup() function returns NULL if it does not find any knowledge about the network protocol referenced. Otherwise, it returns a value that can be used with other calls in this framework.
CONTEXT
The net_protocol_lookup() function may be called from user, kernel, or interrupt context.
ATTRIBUTES
See attributes(7) for descriptions of the following attributes:
ATTRIBUTE TYPE ATTRIBUTE VALUE
Interface Stability Committed
SEE ALSO
attributes (7), net_protocol_release (9F)