__dev_forward_skb identifier - Linux source code next-20260811

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linux

Versions

FIXME
- FIXME
  - next-20260811

Defined in 1 files as a prototype:

include/linux/netdevice.h, line 4420 (as a prototype)

Defined in 1 files as a function:

net/core/dev.c, line 2480 (as a function)

Referenced in 4 files:

Smatch caller information:

drivers/net/veth.c veth_forward_skb() -> __dev_forward_skb()

Type	Parameter	Key	Value
PARAM_VALUE	0	dev	4096-ptr_max
PARAM_VALUE	1	skb	4096-ptr_max
PARAM_VALUE	1	skb->dev->ethtool_ops->get_link_ext_state	0-9223372036854775807
PARAM_VALUE	1	skb->dev->ethtool_ops->get_mm_stats	0-9223372036854775807
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->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->sk_bpf_storage->owner_refcnt.refs.counter	s32min-s32max
PARAM_VALUE	1	skb->sk->sk_error_queue.next	4096-ptr_max
PARAM_VALUE	1	skb->sk->sk_error_queue.prev	4096-ptr_max
PARAM_VALUE	1	skb->sk->sk_error_queue.prev->next->next	4096-ptr_max
PARAM_VALUE	1	skb->sk->sk_owner->refcnt.counter	0-s32max
PARAM_VALUE	1	skb->sk->sk_prot_creator->owner->refcnt.counter	0-s32max
BUF_SIZE	1	skb	(-1)-s32max
BUF_SIZE	1	skb	(-1)-s32max
CAPPED_DATA	0	dev->real_num_rx_queues	1
DATA_SOURCE	0	dev	$0
DATA_SOURCE	1	skb	$1
RX_PATH
TASK_NOT_RUNNING
HOST_DATA	1	skb->csum_offset	0-u16max
HOST_DATA	1	skb->data_len	0-2147483648[c]
HOST_DATA	1	skb->len	0-u32max[c]
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->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->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->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->extensions
NO_OVERFLOW_SIMPLE	1	skb->len
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
LOCK2		rcu_read
HALF_LOCKED2		&dev->tx_global_lock
HALF_LOCKED2		&txq->_xmit_lock
HALF_LOCKED2		bh
HALF_LOCKED2		flags

drivers/net/macvlan.c macvlan_broadcast_one() -> __dev_forward_skb()

Type	Parameter	Key	Value
PARAM_VALUE	1	skb	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	9149257602806276096
PARAM_VALUE	1	skb->dev->ndisc_ops->parse_options	4570881757937598464
PARAM_VALUE	1	skb->dev->ndisc_ops->update	8455145027589103616
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	0,8,32,48,56,88,112,120,144,160,224,240,256,296,616,624,728,736,1056,1128,1336,1616,2176,2240,2272,2560,3296,3720,9688-u64max
BUF_SIZE	1	skb	(-1),240
BUF_SIZE	1	skb	(-1),240
CAPPED_DATA	1	skb	1
DATA_SOURCE	1	skb	$0
RX_PATH
TASK_NOT_RUNNING
HALF_LOCKED2		rcu_read

drivers/net/netdevsim/netdev.c nsim_forward_skb() -> __dev_forward_skb()

Type	Parameter	Key	Value
PARAM_VALUE	0	dev	4096-ptr_max
PARAM_VALUE	1	skb	4096-ptr_max
PARAM_VALUE	1	skb->decrypted	1
PARAM_VALUE	1	skb->dev->ethtool_ops->get_link_ext_state	0-9223372036854775807
PARAM_VALUE	1	skb->dev->ethtool_ops->get_mm_stats	0-9223372036854775807
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->encapsulation	1
PARAM_VALUE	1	skb->extensions	4096-ptr_max
PARAM_VALUE	1	skb->hash	1-u32max
PARAM_VALUE	1	skb->inner_ipproto	6
PARAM_VALUE	1	skb->inner_protocol_type	1
PARAM_VALUE	1	skb->ip_summed	0
PARAM_VALUE	1	skb->l4_hash	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->sk_bpf_storage->owner_refcnt.refs.counter	s32min-s32max
PARAM_VALUE	1	skb->sk->sk_error_queue.next	4096-ptr_max
PARAM_VALUE	1	skb->sk->sk_error_queue.prev	4096-ptr_max
PARAM_VALUE	1	skb->sk->sk_error_queue.prev->next->next	4096-ptr_max
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->slow_gro	1
PARAM_VALUE	1	skb->sw_hash	1
BUF_SIZE	1	skb	(-1)-s32max
BUF_SIZE	1	skb	(-1)-s32max
CAPPED_DATA	0	dev->num_rx_queues	1
DATA_SOURCE	0	dev	$1
DATA_SOURCE	1	skb	$2
RX_PATH
TASK_NOT_RUNNING
HOST_DATA	1	skb->csum_offset	0-u16max
HOST_DATA	1	skb->data_len	0-1[c]
HOST_DATA	1	skb->len	0-u32max[c]
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->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->tstamp	500000002-4294967299794967295[c]
HOST_DATA	1	skb->users.refs.counter	s32min-0,2-s32max
NO_OVERFLOW_SIMPLE	0	dev->group
NO_OVERFLOW_SIMPLE	0	dev->num_tc
NO_OVERFLOW_SIMPLE	0	dev->real_num_rx_queues
NO_OVERFLOW_SIMPLE	0	dev->real_num_tx_queues
NO_OVERFLOW_SIMPLE	0	dev->stats.rx_bytes
NO_OVERFLOW_SIMPLE	0	dev->stats.tx_bytes
NO_OVERFLOW_SIMPLE	0	dev->tx_queue_len
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->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->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
LOCK2		rcu_read
HALF_LOCKED2		&tx_dev->tx_global_lock
HALF_LOCKED2		&txq->_xmit_lock
HALF_LOCKED2		bh
HALF_LOCKED2		flags

net/core/dev.c dev_forward_skb() -> __dev_forward_skb()

Type	Parameter	Key	Value
PARAM_VALUE	0	dev->nd_net.net->ipv4.fqdir->f->frag_expire	0,663510801442193408,1753052602134376448,4007388366431105024,8876081723503042560
PARAM_VALUE	0	dev->nd_net.net->ipv4.fqdir->f->qsize	0,304,320
PARAM_VALUE	0	dev->ndisc_ops->fill_addr_option	4096-ptr_max
PARAM_VALUE	0	dev->ndisc_ops->parse_options	4096-ptr_max
PARAM_VALUE	0	dev->ndisc_ops->update	4096-ptr_max
PARAM_VALUE	0	dev->rtnl_link_ops->maxtype	0-6,8-10,15,18,20,22,24,34,50
PARAM_VALUE	1	skb	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
BUF_SIZE	1	skb	(-1)-s32max
BUF_SIZE	1	skb	(-1)-s32max
DATA_SOURCE	0	dev	$0
DATA_SOURCE	1	skb	$1
PREEMPT_ADD
RX_PATH
TASK_NOT_RUNNING
HOST_DATA	1	skb->csum_offset	0-u16max
HOST_DATA	1	skb->data_len	0-2147483648[c]
HOST_DATA	1	skb->len	0-u32max[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->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->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->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	dev	unit_byte
HALF_LOCKED2		bh
HALF_LOCKED2		rcu_read