ip_protocol_deliver_rcu identifier - Linux source code next-20260811

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linux

Versions

FIXME
- FIXME
  - next-20260811

Defined in 1 files as a prototype:

include/net/ip.h, line 169 (as a prototype)

Defined in 1 files as a function:

net/ipv4/ip_input.c, line 189 (as a function)

Referenced in 2 files:

Smatch caller information:

net/ipv4/udp.c udp_queue_rcv_skb() -> ip_protocol_deliver_rcu()

Type	Parameter	Key	Value
PARAM_VALUE	1	skb	4096-ptr_max
PARAM_VALUE	1	skb->_nfct	0
PARAM_VALUE	1	skb->csum_complete_sw	1
PARAM_VALUE	1	skb->dev	4096-ptr_max
PARAM_VALUE	1	skb->dev->nd_net.net->ipv4.fqdir->f->frag_expire	0,663510801442193408,1753052602134376448,4007388366431105024,8876081723503042560
PARAM_VALUE	1	skb->dev->nd_net.net->ipv4.fqdir->f->qsize	0,304,320
PARAM_VALUE	1	skb->dev->ndisc_ops->fill_addr_option	4096-ptr_max
PARAM_VALUE	1	skb->dev->ndisc_ops->parse_options	4096-ptr_max
PARAM_VALUE	1	skb->dev->ndisc_ops->update	4096-ptr_max
PARAM_VALUE	1	skb->dev->rtnl_link_ops->maxtype	0-6,8-10,15,18,20,22,24,34,50
PARAM_VALUE	1	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	1	skb->extensions	0
PARAM_VALUE	1	skb->sk->__sk_common.skc_net.net->notrefcnt_tracker.dead	1
PARAM_VALUE	1	skb->sk->__sk_common.skc_net.net->notrefcnt_tracker.quarantine.prev	4096-ptr_max
PARAM_VALUE	1	skb->sk->__sk_common.skc_net.net->refcnt_tracker.dead	1
PARAM_VALUE	1	skb->sk->ns_tracker->alloc_stack_handle	0-4294967295
PARAM_VALUE	1	skb->sk->ns_tracker->dead	0-1
PARAM_VALUE	1	skb->sk->ns_tracker->free_stack_handle	0-4294967295
PARAM_VALUE	1	skb->sk->sk_bpf_storage->owner_refcnt.refs.counter	s32min-s32max
PARAM_VALUE	1	skb->sk->sk_filter	0
PARAM_VALUE	1	skb->sk->sk_filter->rcu.entry.next	s64max
PARAM_VALUE	1	skb->sk->sk_filter->rcu.func	1-u64max
PARAM_VALUE	1	skb->sk->sk_filter->rcu.function	1626621062881370112
PARAM_VALUE	1	skb->sk->sk_frag.page	0
PARAM_VALUE	1	skb->sk->sk_owner->refcnt.counter	0-s32max
PARAM_VALUE	1	skb->sk->sk_prot_creator->owner->refcnt.counter	0-s32max
PARAM_VALUE	1	skb->sk->sk_rcu.func	1-u64max
PARAM_VALUE	1	skb->sk->sk_rcu.next	0
PARAM_VALUE	1	skb->sk->sk_reuseport_cb->rcu.func	1-u64max
PARAM_VALUE	1	skb->sk->sk_security	0
PARAM_VALUE	1	*skb->dev->name	0-255
PARAM_VALUE	2	protocol	1-s32max
CAPPED_DATA	1	skb->dev->nd_net.net	1
DATA_SOURCE	1	skb	$1 [m]
DATA_SOURCE	2	protocol	r udp_queue_rcv_one_skb
CONSTRAINT	1	skb->data_len	<=49
RX_PATH
TASK_NOT_RUNNING
NOCHECK_CALL
HOST_DATA	1	skb->prev->csum_offset	0-u16max
HOST_DATA	1	skb->prev->data_len	0-u32max[c]
HOST_DATA	1	skb->prev->len	1-u32max[c]
HOST_DATA	1	skb->prev->tstamp	500000002-4294967299794967295[c]
HOST_DATA	1	skb->users.refs.counter	s32min-0,2-s32max
HOST_DATA	1	*skb->data	0-255
NO_OVERFLOW_SIMPLE	1	skb->data_len
NO_OVERFLOW_SIMPLE	1	skb->dev->group
NO_OVERFLOW_SIMPLE	1	skb->dev->num_tc
NO_OVERFLOW_SIMPLE	1	skb->dev->proto_down
NO_OVERFLOW_SIMPLE	1	skb->dev->real_num_rx_queues
NO_OVERFLOW_SIMPLE	1	skb->dev->real_num_tx_queues
NO_OVERFLOW_SIMPLE	1	skb->dev->stats.rx_bytes
NO_OVERFLOW_SIMPLE	1	skb->dev->stats.tx_bytes
NO_OVERFLOW_SIMPLE	1	skb->dev->tx_queue_len
NO_OVERFLOW_SIMPLE	1	skb->end
NO_OVERFLOW_SIMPLE	1	skb->len
NO_OVERFLOW_SIMPLE	1	skb->next->end
NO_OVERFLOW_SIMPLE	1	skb->next->len
NO_OVERFLOW_SIMPLE	1	skb->next->tail
NO_OVERFLOW_SIMPLE	1	skb->next->truesize
NO_OVERFLOW_SIMPLE	1	skb->prev->end
NO_OVERFLOW_SIMPLE	1	skb->prev->len
NO_OVERFLOW_SIMPLE	1	skb->prev->tail
NO_OVERFLOW_SIMPLE	1	skb->prev->truesize
NO_OVERFLOW_SIMPLE	1	skb->sk->sk_backlog.len
NO_OVERFLOW_SIMPLE	1	skb->tail
NO_OVERFLOW_SIMPLE	1	skb->truesize
UNITS	1	skb	unit_byte
HALF_LOCKED2		rcu_read

net/ipv4/ip_input.c ip_local_deliver_finish() -> ip_protocol_deliver_rcu()

Type	Parameter	Key	Value
PARAM_VALUE	0	net->ipv4.fqdir->f->frag_expire	0,663510801442193408,1753052602134376448,4007388366431105024,8876081723503042560
PARAM_VALUE	0	net->ipv4.fqdir->f->qsize	0,304,320
PARAM_VALUE	1	skb	4096-ptr_max
PARAM_VALUE	1	skb->data	4096-ptr_max
PARAM_VALUE	1	skb->dev->nd_net.net->ipv4.fqdir->f->frag_expire	0,663510801442193408,1753052602134376448,4007388366431105024,8876081723503042560
PARAM_VALUE	1	skb->dev->nd_net.net->ipv4.fqdir->f->qsize	0,304,320
PARAM_VALUE	1	skb->dev->ndisc_ops->fill_addr_option	4096-ptr_max
PARAM_VALUE	1	skb->dev->ndisc_ops->parse_options	4096-ptr_max
PARAM_VALUE	1	skb->dev->ndisc_ops->update	4096-ptr_max
PARAM_VALUE	1	skb->dev->rtnl_link_ops->maxtype	0-6,8-10,15,18,20,22,24,34,50
PARAM_VALUE	1	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	1	skb->tstamp_type	0
PARAM_VALUE	2	protocol	0-255
BUF_SIZE	0	net	(-1),1-s32max
BUF_SIZE	0	net	(-1),1-s32max
BUF_SIZE	1	skb	(-1)-s32max
BUF_SIZE	1	skb	(-1)-s32max
CAPPED_DATA	1	skb->data_len	1
DATA_SOURCE	0	net	$0
DATA_SOURCE	1	skb	$2
CONSTRAINT	1	skb->data_len	<=49
RX_PATH
TASK_NOT_RUNNING
NOCHECK_CALL
HOST_DATA	1	skb->csum	0-192512[c]
HOST_DATA	1	skb->csum_offset	0-u16max
HOST_DATA	1	skb->data_len	0-u32max[c]
HOST_DATA	1	skb->inner_protocol	1-255
HOST_DATA	1	skb->next->csum_offset	0-u16max
HOST_DATA	1	skb->next->data_len	0-u32max[c]
HOST_DATA	1	skb->next->len	1-u32max[c]
HOST_DATA	1	skb->next->prev->csum_offset	0-u16max
HOST_DATA	1	skb->next->prev->data_len	0-u32max[c]
HOST_DATA	1	skb->next->prev->len	1-u32max[c]
HOST_DATA	1	skb->next->prev->tstamp	500000002-4294967299794967295[c]
HOST_DATA	1	skb->prev->csum_offset	0-u16max
HOST_DATA	1	skb->prev->data_len	0-u32max[c]
HOST_DATA	1	skb->prev->len	0-u32max[c]
HOST_DATA	1	skb->prev->truesize	0-u32max
HOST_DATA	1	skb->prev->tstamp	500000002-4294967299794967295[c]
HOST_DATA	1	skb->prev->users.refs.counter	s32min-0,2-s32max
HOST_DATA	1	skb->protocol	1-255
HOST_DATA	1	skb->truesize	0-u32max
HOST_DATA	1	skb->tstamp	500000002-4294967299794967295[c]
HOST_DATA	1	skb->users.refs.counter	s32min-0,2-s32max
HOST_DATA	1	*skb->data	0-255
NO_OVERFLOW_SIMPLE	1	skb->data_len
NO_OVERFLOW_SIMPLE	1	skb->dev->group
NO_OVERFLOW_SIMPLE	1	skb->dev->num_tc
NO_OVERFLOW_SIMPLE	1	skb->dev->proto_down
NO_OVERFLOW_SIMPLE	1	skb->dev->real_num_rx_queues
NO_OVERFLOW_SIMPLE	1	skb->dev->real_num_tx_queues
NO_OVERFLOW_SIMPLE	1	skb->dev->stats.rx_bytes
NO_OVERFLOW_SIMPLE	1	skb->dev->stats.tx_bytes
NO_OVERFLOW_SIMPLE	1	skb->dev->tx_queue_len
NO_OVERFLOW_SIMPLE	1	skb->end
NO_OVERFLOW_SIMPLE	1	skb->len
NO_OVERFLOW_SIMPLE	1	skb->next->data_len
NO_OVERFLOW_SIMPLE	1	skb->next->end
NO_OVERFLOW_SIMPLE	1	skb->next->len
NO_OVERFLOW_SIMPLE	1	skb->next->tail
NO_OVERFLOW_SIMPLE	1	skb->next->truesize
NO_OVERFLOW_SIMPLE	1	skb->prev->data_len
NO_OVERFLOW_SIMPLE	1	skb->prev->end
NO_OVERFLOW_SIMPLE	1	skb->prev->len
NO_OVERFLOW_SIMPLE	1	skb->prev->tail
NO_OVERFLOW_SIMPLE	1	skb->prev->truesize
NO_OVERFLOW_SIMPLE	1	skb->sk->sk_backlog.len
NO_OVERFLOW_SIMPLE	1	skb->tail
NO_OVERFLOW_SIMPLE	1	skb->truesize
UNITS	0	net	unit_byte
UNITS	1	skb	unit_byte
LOCK2		rcu_read
HALF_LOCKED2		bh
HALF_LOCKED2	0	&net->ipv4.mfc_mutex
HALF_LOCKED2	0	&net->ipv6.mfc_mutex