ip_mc_validate_source 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/route.h, line 217 (as a prototype)

Defined in 1 files as a function:

net/ipv4/route.c, line 1737 (as a function)

Referenced in 2 files:

Smatch caller information:

net/ipv4/udp.c udp_v4_early_demux() -> ip_mc_validate_source()

Type	Parameter	Key	Value
PARAM_VALUE	0	skb	4096-ptr_max
PARAM_VALUE	0	skb->data->h_proto	2048,34525
PARAM_VALUE	0	skb->destructor	2538703528980549632
PARAM_VALUE	0	skb->dev	4096-ptr_max
PARAM_VALUE	0	skb->dev->ethtool_ops->create_rxfh_context	0-s64max
PARAM_VALUE	0	skb->dev->ethtool_ops->get_link_ext_state	0-s64max
PARAM_VALUE	0	skb->dev->ethtool_ops->get_mm_stats	0-s64max
PARAM_VALUE	0	skb->dev->ethtool_ops->modify_rxfh_context	0-s64max
PARAM_VALUE	0	skb->dev->ethtool_ops->remove_rxfh_context	0-s64max
PARAM_VALUE	0	skb->dev->ethtool_ops->rxfh_max_num_contexts	0-4294967295
PARAM_VALUE	0	skb->dev->ethtool_ops->supported_coalesce_params	0-s64max
PARAM_VALUE	0	skb->dev->l3mdev_ops	4096-ptr_max
PARAM_VALUE	0	skb->dev->nd_net.net->ipv4.fqdir->f->frag_expire	0,663510801442193408,1753052602134376448,4007388366431105024,8876081723503042560
PARAM_VALUE	0	skb->dev->nd_net.net->ipv4.fqdir->f->qsize	0,304,320
PARAM_VALUE	0	skb->dev->nd_net.net->ipv4.udp_table	4096-ptr_max
PARAM_VALUE	0	skb->dev->ndisc_ops->fill_addr_option	4096-ptr_max
PARAM_VALUE	0	skb->dev->ndisc_ops->parse_options	4096-ptr_max
PARAM_VALUE	0	skb->dev->ndisc_ops->update	4096-ptr_max
PARAM_VALUE	0	skb->dev->priv_flags	262144-u32max
PARAM_VALUE	0	skb->dev->rtnl_link_ops->maxtype	0-6,8-10,15,18,20,22,24,34,50
PARAM_VALUE	0	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	0	skb->pkt_type	2
PARAM_VALUE	0	skb->sk	4096-ptr_max
PARAM_VALUE	0	skb->sk->__sk_common.skc_ipv6only	0
PARAM_VALUE	0	skb->sk->ns_tracker->alloc_stack_handle	0-4294967295
PARAM_VALUE	0	skb->sk->ns_tracker->dead	0-1
PARAM_VALUE	0	skb->sk->ns_tracker->free_stack_handle	0-4294967295
PARAM_VALUE	0	*skb->data->h_dest	0-255
PARAM_VALUE	0	*skb->data->h_source	0-255
PARAM_VALUE	3	dscp	0,4-252
PARAM_VALUE	4	dev	4096-ptr_max
PARAM_VALUE	4	dev->ethtool_ops->create_rxfh_context	0-s64max
PARAM_VALUE	4	dev->ethtool_ops->get_link_ext_state	0-s64max
PARAM_VALUE	4	dev->ethtool_ops->get_mm_stats	0-s64max
PARAM_VALUE	4	dev->ethtool_ops->modify_rxfh_context	0-s64max
PARAM_VALUE	4	dev->ethtool_ops->remove_rxfh_context	0-s64max
PARAM_VALUE	4	dev->ethtool_ops->rxfh_max_num_contexts	0-4294967295
PARAM_VALUE	4	dev->ethtool_ops->supported_coalesce_params	0-s64max
PARAM_VALUE	4	dev->l3mdev_ops	4096-ptr_max
PARAM_VALUE	4	dev->nd_net.net->ipv4.fqdir->f->frag_expire	0,663510801442193408,1753052602134376448,4007388366431105024,8876081723503042560
PARAM_VALUE	4	dev->nd_net.net->ipv4.fqdir->f->qsize	0,304,320
PARAM_VALUE	4	dev->nd_net.net->ipv4.udp_table	4096-ptr_max
PARAM_VALUE	4	dev->ndisc_ops->fill_addr_option	4096-ptr_max
PARAM_VALUE	4	dev->ndisc_ops->parse_options	4096-ptr_max
PARAM_VALUE	4	dev->ndisc_ops->update	4096-ptr_max
PARAM_VALUE	4	dev->priv_flags	262144-u32max
PARAM_VALUE	4	dev->rtnl_link_ops->maxtype	0-6,8-10,15,18,20,22,24,34,50
PARAM_VALUE	4	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	5	in_dev	4096-ptr_max
PARAM_VALUE	5	in_dev->mc_hash	0,4096-ptr_max
PARAM_VALUE	6	itag	3325158324626354176
PARAM_VALUE	6	*itag	0
BUF_SIZE	0	skb	(-1)-s32max
BUF_SIZE	0	skb	(-1)-s32max
CAPPED_DATA	0	skb->dev->ip_ptr	1
CAPPED_DATA	0	skb->dev->nd_net.net	1
CAPPED_DATA	1	daddr	1
CAPPED_DATA	4	dev->ip_ptr	1
CAPPED_DATA	4	dev->nd_net.net	1
DATA_SOURCE	0	skb	$0
PREEMPT_ADD
RX_PATH
TASK_NOT_RUNNING
HOST_DATA	0	skb->csum	0-192512[c]
HOST_DATA	0	skb->csum_offset	0-u16max
HOST_DATA	0	skb->data_len	0-u32max[c]
HOST_DATA	0	skb->len	0-u32max[c]
HOST_DATA	0	skb->next->prev->csum_offset	0-u16max
HOST_DATA	0	skb->next->prev->data_len	0-u32max[c]
HOST_DATA	0	skb->next->prev->len	1-u32max[c]
HOST_DATA	0	skb->next->prev->tstamp	500000002-4294967299794967295[c]
HOST_DATA	0	skb->prev->csum_offset	0-u16max
HOST_DATA	0	skb->prev->data_len	0-u32max[c]
HOST_DATA	0	skb->prev->len	1-u32max[c]
HOST_DATA	0	skb->prev->tstamp	500000002-4294967299794967295[c]
HOST_DATA	0	skb->tstamp	500000002-4294967299794967295[c]
HOST_DATA	0	skb->users.refs.counter	s32min-0,2-s32max
HOST_DATA	0	*skb->data	0-255
NO_OVERFLOW_SIMPLE	0	skb->data_len
NO_OVERFLOW_SIMPLE	0	skb->dev->group
NO_OVERFLOW_SIMPLE	0	skb->dev->num_tc
NO_OVERFLOW_SIMPLE	0	skb->dev->proto_down
NO_OVERFLOW_SIMPLE	0	skb->dev->real_num_rx_queues
NO_OVERFLOW_SIMPLE	0	skb->dev->real_num_tx_queues
NO_OVERFLOW_SIMPLE	0	skb->dev->stats.rx_bytes
NO_OVERFLOW_SIMPLE	0	skb->dev->stats.tx_bytes
NO_OVERFLOW_SIMPLE	0	skb->dev->tx_queue_len
NO_OVERFLOW_SIMPLE	0	skb->end
NO_OVERFLOW_SIMPLE	0	skb->len
NO_OVERFLOW_SIMPLE	0	skb->next->end
NO_OVERFLOW_SIMPLE	0	skb->next->len
NO_OVERFLOW_SIMPLE	0	skb->next->tail
NO_OVERFLOW_SIMPLE	0	skb->next->truesize
NO_OVERFLOW_SIMPLE	0	skb->prev->end
NO_OVERFLOW_SIMPLE	0	skb->prev->len
NO_OVERFLOW_SIMPLE	0	skb->prev->tail
NO_OVERFLOW_SIMPLE	0	skb->prev->truesize
NO_OVERFLOW_SIMPLE	0	skb->sk->sk_backlog.len
NO_OVERFLOW_SIMPLE	0	skb->tail
NO_OVERFLOW_SIMPLE	0	skb->truesize
NO_OVERFLOW_SIMPLE	4	dev->group
NO_OVERFLOW_SIMPLE	4	dev->num_tc
NO_OVERFLOW_SIMPLE	4	dev->proto_down
NO_OVERFLOW_SIMPLE	4	dev->real_num_rx_queues
NO_OVERFLOW_SIMPLE	4	dev->real_num_tx_queues
NO_OVERFLOW_SIMPLE	4	dev->stats.rx_bytes
NO_OVERFLOW_SIMPLE	4	dev->stats.tx_bytes
NO_OVERFLOW_SIMPLE	4	dev->tx_queue_len
UNITS	0	skb	unit_byte
UNITS	1	daddr	unit_byte
UNITS	2	saddr	unit_byte
UNITS	4	dev	unit_byte
HALF_LOCKED2		bh
HALF_LOCKED2		rcu_read

net/ipv4/route.c ip_route_input_mc() -> ip_mc_validate_source()

Type	Parameter	Key	Value
PARAM_VALUE	0	skb	4096-ptr_max
PARAM_VALUE	0	skb->dev->ethtool_ops->create_rxfh_context	0-s64max
PARAM_VALUE	0	skb->dev->ethtool_ops->get_link_ext_state	0-s64max
PARAM_VALUE	0	skb->dev->ethtool_ops->get_mm_stats	0-s64max
PARAM_VALUE	0	skb->dev->ethtool_ops->modify_rxfh_context	0-s64max
PARAM_VALUE	0	skb->dev->ethtool_ops->remove_rxfh_context	0-s64max
PARAM_VALUE	0	skb->dev->ethtool_ops->rxfh_max_num_contexts	0-4294967295
PARAM_VALUE	0	skb->dev->ethtool_ops->supported_coalesce_params	0-s64max
PARAM_VALUE	0	skb->dev->nd_net.net->ipv4.fqdir->f->frag_expire	0,663510801442193408,1753052602134376448,4007388366431105024,8876081723503042560
PARAM_VALUE	0	skb->dev->nd_net.net->ipv4.fqdir->f->qsize	0,304,320
PARAM_VALUE	0	skb->dev->ndisc_ops->fill_addr_option	4096-ptr_max
PARAM_VALUE	0	skb->dev->ndisc_ops->parse_options	4096-ptr_max
PARAM_VALUE	0	skb->dev->ndisc_ops->update	4096-ptr_max
PARAM_VALUE	0	skb->dev->rtnl_link_ops->maxtype	0-6,8-10,15,18,20,22,24,34,50
PARAM_VALUE	0	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	0	*skb->cb	0-255
PARAM_VALUE	0	*skb->dev->name	0-255
PARAM_VALUE	3	dscp	0,4-252
PARAM_VALUE	4	dev	4096-ptr_max
PARAM_VALUE	4	dev->ip_ptr->dev	4096-ptr_max
PARAM_VALUE	4	dev->ip_ptr->mc_hash	0,4096-ptr_max
PARAM_VALUE	4	dev->nd_net.net->ipv4.fqdir->f->frag_expire	0,663510801442193408,1753052602134376448,4007388366431105024,8876081723503042560
PARAM_VALUE	4	dev->nd_net.net->ipv4.fqdir->f->qsize	0,304,320
PARAM_VALUE	4	dev->ndisc_ops->fill_addr_option	4096-ptr_max
PARAM_VALUE	4	dev->ndisc_ops->parse_options	4096-ptr_max
PARAM_VALUE	4	dev->ndisc_ops->update	4096-ptr_max
PARAM_VALUE	4	dev->rtnl_link_ops->maxtype	0-6,8-10,15,18,20,22,24,34,50
PARAM_VALUE	4	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	6	itag	358785741060411392
PARAM_VALUE	6	*itag	0
BUF_SIZE	0	skb	(-1)-s32max
BUF_SIZE	0	skb	(-1)-s32max
CAPPED_DATA	4	dev->ip_ptr	1
DATA_SOURCE	0	skb	$0
DATA_SOURCE	1	daddr	$1
DATA_SOURCE	2	saddr	$2
DATA_SOURCE	3	dscp	$3
DATA_SOURCE	4	dev	$4
PREEMPT_ADD
RX_PATH
TASK_NOT_RUNNING
HOST_DATA	0	skb->csum	0-4294967040[c]
HOST_DATA	0	skb->csum_offset	0-u16max
HOST_DATA	0	skb->data_len	0-u32max[c]
HOST_DATA	0	skb->len	0-u32max[c]
HOST_DATA	0	skb->prev->csum_offset	0-u16max
HOST_DATA	0	skb->prev->data_len	0-u32max[c]
HOST_DATA	0	skb->prev->len	0-u32max[c]
HOST_DATA	0	skb->prev->tstamp	500000002-4294967299794967295[c]
HOST_DATA	0	skb->truesize	0-u32max
HOST_DATA	0	skb->tstamp	500000002-4294967299794967295[c]
HOST_DATA	0	skb->users.refs.counter	s32min-0,2-s32max
HOST_DATA	0	*skb->data	0-255
USER_DATA	3	dscp	0,4-252[c]
NO_OVERFLOW_SIMPLE	0	skb->data_len
NO_OVERFLOW_SIMPLE	0	skb->dev->group
NO_OVERFLOW_SIMPLE	0	skb->dev->num_tc
NO_OVERFLOW_SIMPLE	0	skb->dev->proto_down
NO_OVERFLOW_SIMPLE	0	skb->dev->real_num_rx_queues
NO_OVERFLOW_SIMPLE	0	skb->dev->real_num_tx_queues
NO_OVERFLOW_SIMPLE	0	skb->dev->stats.rx_bytes
NO_OVERFLOW_SIMPLE	0	skb->dev->stats.tx_bytes
NO_OVERFLOW_SIMPLE	0	skb->dev->tx_queue_len
NO_OVERFLOW_SIMPLE	0	skb->end
NO_OVERFLOW_SIMPLE	0	skb->extensions
NO_OVERFLOW_SIMPLE	0	skb->len
NO_OVERFLOW_SIMPLE	0	skb->next->data_len
NO_OVERFLOW_SIMPLE	0	skb->next->end
NO_OVERFLOW_SIMPLE	0	skb->next->len
NO_OVERFLOW_SIMPLE	0	skb->next->tail
NO_OVERFLOW_SIMPLE	0	skb->next->truesize
NO_OVERFLOW_SIMPLE	0	skb->prev->end
NO_OVERFLOW_SIMPLE	0	skb->prev->len
NO_OVERFLOW_SIMPLE	0	skb->prev->tail
NO_OVERFLOW_SIMPLE	0	skb->prev->truesize
NO_OVERFLOW_SIMPLE	0	skb->sk->sk_backlog.len
NO_OVERFLOW_SIMPLE	0	skb->tail
NO_OVERFLOW_SIMPLE	0	skb->truesize
NO_OVERFLOW_SIMPLE	4	dev->group
NO_OVERFLOW_SIMPLE	4	dev->num_tc
NO_OVERFLOW_SIMPLE	4	dev->proto_down
NO_OVERFLOW_SIMPLE	4	dev->real_num_rx_queues
NO_OVERFLOW_SIMPLE	4	dev->real_num_tx_queues
NO_OVERFLOW_SIMPLE	4	dev->stats.rx_bytes
NO_OVERFLOW_SIMPLE	4	dev->stats.tx_bytes
NO_OVERFLOW_SIMPLE	4	dev->tx_queue_len
UNITS	0	skb	unit_byte
UNITS	1	daddr	unit_byte
UNITS	2	saddr	unit_byte
UNITS	4	dev	unit_byte
LOCK2		rcu_read