ip_mr_forward identifier - Linux source code next-20260811

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linux

Versions

FIXME
- FIXME
  - next-20260811

Defined in 1 files as a prototype:

net/ipv4/ipmr.c, line 108 (as a prototype)

Defined in 1 files as a function:

net/ipv4/ipmr.c, line 2041 (as a function)

Referenced in 1 files:

net/ipv4/ipmr.c
- line 1047
- line 2272

Smatch caller information:

net/ipv4/ipmr.c ip_mr_input() -> ip_mr_forward()

Type	Parameter	Key	Value
PARAM_VALUE	0	net	4096-ptr_max
PARAM_VALUE	0	net->ipv4.mr_rules_ops	4096-ptr_max
PARAM_VALUE	1	mrt	4096-ptr_max
PARAM_VALUE	1	mrt->mfc_hash.ht.p.hashfn	4096-ptr_max
PARAM_VALUE	1	mrt->ops.rht_params	4096-ptr_max
PARAM_VALUE	2	dev	4096-ptr_max
PARAM_VALUE	3	skb	4096-ptr_max
PARAM_VALUE	3	skb->_skb_refdst	1-u64max
PARAM_VALUE	3	skb->cb	4096-ptr_max
PARAM_VALUE	3	skb->dev	4096-ptr_max
PARAM_VALUE	3	skb->dev->nd_net.net->ipv4.fqdir->f->frag_expire	0,663510801442193408,1753052602134376448,4007388366431105024,8876081723503042560
PARAM_VALUE	3	skb->dev->nd_net.net->ipv4.fqdir->f->qsize	0,304,320
PARAM_VALUE	3	skb->dev->nd_net.net->ipv4.mr_rules_ops	4096-ptr_max
PARAM_VALUE	3	skb->dev->ndisc_ops->fill_addr_option	4096-ptr_max
PARAM_VALUE	3	skb->dev->ndisc_ops->parse_options	4096-ptr_max
PARAM_VALUE	3	skb->dev->ndisc_ops->update	4096-ptr_max
PARAM_VALUE	3	skb->dev->rtnl_link_ops->maxtype	0-6,8-10,15,18,20,22,24,34,50
PARAM_VALUE	3	skb->dev->rtnl_link_ops->priv_size	0,8,32,40,48,56,88,112,120,144,160,224,240,256,296,616,624,728,736,744,1056,1128,1336,1616,2176,2240,2272,2560,3296,3544,3552,3720,9688-u64max
PARAM_VALUE	3	skb->next->sk->ns_tracker->alloc_stack_handle	0-4294967295
PARAM_VALUE	3	skb->next->sk->ns_tracker->dead	0-1
PARAM_VALUE	3	skb->next->sk->ns_tracker->free_stack_handle	0-4294967295
PARAM_VALUE	3	skb->next->sk->sk_peer_cred->process_keyring->user->qnbytes	s32min-s32max
PARAM_VALUE	3	skb->next->sk->sk_peer_cred->process_keyring->user->qnkeys	s32min-s32max
PARAM_VALUE	3	skb->next->sk->sk_peer_cred->request_key_auth->user->qnbytes	s32min-s32max
PARAM_VALUE	3	skb->next->sk->sk_peer_cred->request_key_auth->user->qnkeys	s32min-s32max
PARAM_VALUE	3	skb->next->sk->sk_peer_cred->session_keyring->user->qnbytes	s32min-s32max
PARAM_VALUE	3	skb->next->sk->sk_peer_cred->session_keyring->user->qnkeys	s32min-s32max
PARAM_VALUE	3	skb->next->sk->sk_peer_cred->thread_keyring->user->qnbytes	s32min-s32max
PARAM_VALUE	3	skb->next->sk->sk_peer_cred->thread_keyring->user->qnkeys	s32min-s32max
PARAM_VALUE	3	skb->sk->ns_tracker->alloc_stack_handle	0-4294967295
PARAM_VALUE	3	skb->sk->ns_tracker->dead	0-1
PARAM_VALUE	3	skb->sk->ns_tracker->free_stack_handle	0-4294967295
PARAM_VALUE	4	c	1-u64max
PARAM_VALUE	5	local	s32min-0
BUF_SIZE	3	skb	(-1)-s32max
BUF_SIZE	3	skb	(-1)-s32max
CAPPED_DATA	2	dev	1
CAPPED_DATA	3	skb	1
CAPPED_DATA	3	skb->dev->nd_net.net	1
DATA_SOURCE	1	mrt	r ipmr_rt_fib_lookup
DATA_SOURCE	3	skb	$0
RX_PATH
TASK_NOT_RUNNING
NOCHECK_CALL
HOST_DATA	3	skb->csum	0-4294967041[c]
HOST_DATA	3	skb->csum_offset	0-u16max
HOST_DATA	3	skb->data_len	0-u32max[c]
HOST_DATA	3	skb->len	0-u32max[c]
HOST_DATA	3	skb->next->prev->csum_offset	0-u16max
HOST_DATA	3	skb->next->prev->data_len	0-u32max[c]
HOST_DATA	3	skb->next->prev->len	1-u32max[c]
HOST_DATA	3	skb->next->prev->tstamp	500000002-4294967299794967295[c]
HOST_DATA	3	skb->prev->csum_offset	0-u16max
HOST_DATA	3	skb->prev->data_len	0-u32max[c]
HOST_DATA	3	skb->prev->len	0-u32max[c]
HOST_DATA	3	skb->prev->tstamp	500000002-4294967299794967295[c]
HOST_DATA	3	skb->protocol	1-255
HOST_DATA	3	skb->truesize	0-u32max
HOST_DATA	3	skb->tstamp	500000002-4294967299794967295[c]
HOST_DATA	3	skb->users.refs.counter	s32min-0,2-s32max
HOST_DATA	3	*skb->data	0-255
NO_OVERFLOW_SIMPLE	2	dev->group
NO_OVERFLOW_SIMPLE	2	dev->num_tc
NO_OVERFLOW_SIMPLE	2	dev->proto_down
NO_OVERFLOW_SIMPLE	2	dev->real_num_rx_queues
NO_OVERFLOW_SIMPLE	2	dev->real_num_tx_queues
NO_OVERFLOW_SIMPLE	2	dev->stats.rx_bytes
NO_OVERFLOW_SIMPLE	2	dev->stats.tx_bytes
NO_OVERFLOW_SIMPLE	2	dev->tx_queue_len
NO_OVERFLOW_SIMPLE	3	skb->data_len
NO_OVERFLOW_SIMPLE	3	skb->dev->group
NO_OVERFLOW_SIMPLE	3	skb->dev->num_tc
NO_OVERFLOW_SIMPLE	3	skb->dev->proto_down
NO_OVERFLOW_SIMPLE	3	skb->dev->real_num_rx_queues
NO_OVERFLOW_SIMPLE	3	skb->dev->real_num_tx_queues
NO_OVERFLOW_SIMPLE	3	skb->dev->stats.rx_bytes
NO_OVERFLOW_SIMPLE	3	skb->dev->stats.tx_bytes
NO_OVERFLOW_SIMPLE	3	skb->dev->tx_queue_len
NO_OVERFLOW_SIMPLE	3	skb->end
NO_OVERFLOW_SIMPLE	3	skb->extensions
NO_OVERFLOW_SIMPLE	3	skb->len
NO_OVERFLOW_SIMPLE	3	skb->next->data_len
NO_OVERFLOW_SIMPLE	3	skb->next->end
NO_OVERFLOW_SIMPLE	3	skb->next->len
NO_OVERFLOW_SIMPLE	3	skb->next->tail
NO_OVERFLOW_SIMPLE	3	skb->next->truesize
NO_OVERFLOW_SIMPLE	3	skb->prev->data_len
NO_OVERFLOW_SIMPLE	3	skb->prev->end
NO_OVERFLOW_SIMPLE	3	skb->prev->len
NO_OVERFLOW_SIMPLE	3	skb->prev->tail
NO_OVERFLOW_SIMPLE	3	skb->prev->truesize
NO_OVERFLOW_SIMPLE	3	skb->sk->sk_backlog.len
NO_OVERFLOW_SIMPLE	3	skb->tail
NO_OVERFLOW_SIMPLE	3	skb->truesize
UNITS	0	net	unit_byte
UNITS	2	dev	unit_byte
UNITS	3	skb	unit_byte
HALF_LOCKED2		bh
HALF_LOCKED2		rcu_read

net/ipv4/ipmr.c ipmr_cache_resolve() -> ip_mr_forward()

Type	Parameter	Key	Value
PARAM_VALUE	0	net->ipv4.mfc_mutex.dep_map->name	0-255
PARAM_VALUE	0	net->ipv4.mfc_mutex.first_waiter	0,4096-ptr_max
PARAM_VALUE	0	net->ipv4.mfc_mutex.first_waiter->list.prev->next	5159360019465732096
PARAM_VALUE	0	net->ipv4.mfc_mutex.first_waiter->list.prev->prev	5159360019465732096
PARAM_VALUE	0	net->ipv4.mfc_mutex.osq.tail.counter	0-s32max
PARAM_VALUE	0	net->ipv4.mfc_mutex.wait_lock.dep_map->name	0-255
PARAM_VALUE	0	net->ipv4.mfc_mutex.wait_lock.owner	(-1)
PARAM_VALUE	0	net->ipv4.mfc_mutex.wait_lock.owner_cpu	u32max
PARAM_VALUE	1	mrt	4096-ptr_max
PARAM_VALUE	1	mrt->mfc_cache_list.prev	4096-ptr_max
PARAM_VALUE	1	mrt->mfc_cache_list.prev->next	4096-ptr_max
PARAM_VALUE	1	mrt->mfc_hash.ht.p.hashfn	4096-ptr_max
PARAM_VALUE	1	mrt->mfc_hash.ht.tbl	4096-ptr_max
PARAM_VALUE	1	mrt->ops.rht_params	4096-ptr_max
PARAM_VALUE	3	skb	4096-ptr_max
PARAM_VALUE	3	skb->next	0
PARAM_VALUE	3	skb->prev	0
PARAM_VALUE	4	c	4096-ptr_max
PARAM_VALUE	4	c->_c->mfc_un.res.ttls	0-255
PARAM_VALUE	4	c->_c.free	8836429127286489088
PARAM_VALUE	4	c->_c.list.next	4096-ptr_max
PARAM_VALUE	4	c->_c.mfc_parent	0-31
PARAM_VALUE	4	c->_c.mfc_un.res.minvif	0-32
PARAM_VALUE	4	c->_c.mfc_un.res.refcount.refs.counter	1
PARAM_VALUE	5	local	0
CAPPED_DATA	1	mrt->maxvif	1
CAPPED_DATA	1	mrt->mfc_hash.ht.tbl	1
CAPPED_DATA	4	c->mfc_mcastgrp	1
CAPPED_DATA	4	c->mfc_origin	1
DATA_SOURCE	0	net	$0
DATA_SOURCE	1	mrt	$1
DATA_SOURCE	3	skb	r __skb_dequeue
DATA_SOURCE	4	c	$3
RX_PATH
TASK_NOT_RUNNING
NOCHECK_CALL
USER_DATA	4	c->_c.mfc_parent	0-31
UNITS	0	net	unit_byte
UNITS	2	dev	unit_byte
LOCK2		rcu_read
LOCK2	0	&net->ipv4.mfc_mutex
HALF_LOCKED2		global &rtnl_mutex
TYPE_LOCK		(struct netns_ipv4)->mfc_mutex