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Defined in 1 files as a prototype:

Defined in 1 files as a function:

Referenced in 4 files:

Smatch caller information:

net/ipv6/sit.c sit_tunnel_xmit__() -> ip_tunnel_xmit()

Type Parameter Key Value
PARAM_VALUE 0 skb 4096-ptr_max
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->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->inner_ipproto 4,137
PARAM_VALUE 0 skb->inner_protocol_type 1
PARAM_VALUE 0 skb->protocol 2048,34887
PARAM_VALUE 1 dev 4096-ptr_max
PARAM_VALUE 1 dev->ndisc_ops->fill_addr_option 9149257602806276096
PARAM_VALUE 1 dev->ndisc_ops->parse_options 4570881757937598464
PARAM_VALUE 1 dev->ndisc_ops->update 8455145027589103616
PARAM_VALUE 2 tnl_params 4096-ptr_max
PARAM_VALUE 3 protocol 4,137
BUF_SIZE 0 skb (-1)-s32max
BUF_SIZE 0 skb (-1)-s32max
BUF_SIZE 2 tnl_params 20
DATA_SOURCE 0 skb $0
DATA_SOURCE 1 dev $1
DATA_SOURCE 3 protocol $2
HARD_MAX 0 skb->protocol 34887
HARD_MAX 3 protocol 137
RX_PATH
TASK_NOT_RUNNING
NOCHECK_CALL
HOST_DATA 0 skb->csum_offset 0-u16max
HOST_DATA 0 skb->len 0-u32max[c]
HOST_DATA 0 skb->next->csum_offset 0-u16max
HOST_DATA 0 skb->next->data_len 0-u32max[c]
HOST_DATA 0 skb->next->len 1-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->truesize 0-u32max
HOST_DATA 0 skb->prev->tstamp 500000002-4294967299794967295[c]
HOST_DATA 0 skb->prev->users.refs.counter s32min-0,2-s32max
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->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->prev->data_len
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 1 dev->group
NO_OVERFLOW_SIMPLE 1 dev->num_tc
NO_OVERFLOW_SIMPLE 1 dev->real_num_rx_queues
NO_OVERFLOW_SIMPLE 1 dev->real_num_tx_queues
NO_OVERFLOW_SIMPLE 1 dev->stats.rx_bytes
NO_OVERFLOW_SIMPLE 1 dev->stats.tx_bytes
NO_OVERFLOW_SIMPLE 1 dev->tx_queue_len
HALF_LOCKED2 &txq->_xmit_lock
HALF_LOCKED2 bh
HALF_LOCKED2 flags
HALF_LOCKED2 rcu_read

net/ipv4/ip_gre.c __gre_xmit() -> ip_tunnel_xmit()

Type Parameter Key Value
PARAM_VALUE 0 skb 4096-ptr_max
PARAM_VALUE 0 skb->csum_offset 4
PARAM_VALUE 0 skb->data 4096-ptr_max
PARAM_VALUE 0 skb->data->flags 0,7,1792-65287
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->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->inner_protocol_type 0
PARAM_VALUE 1 dev 4096-ptr_max
PARAM_VALUE 1 dev->ndisc_ops->fill_addr_option 9149257602806276096
PARAM_VALUE 1 dev->ndisc_ops->parse_options 4570881757937598464
PARAM_VALUE 1 dev->ndisc_ops->update 8455145027589103616
PARAM_VALUE 1 dev->priv->collect_md 0
PARAM_VALUE 2 tnl_params 4096-ptr_max
BUF_SIZE 0 skb (-1)-s32max
BUF_SIZE 0 skb (-1)-s32max
BUF_SIZE 2 tnl_params (-1),1-s32max
BUF_SIZE 2 tnl_params (-1),1-s32max
CAPPED_DATA 0 skb->head 1
DATA_SOURCE 0 skb $0
DATA_SOURCE 1 dev $1
DATA_SOURCE 2 tnl_params $2
RX_PATH
TASK_NOT_RUNNING
NOCHECK_CALL
HOST_DATA 0 skb->csum_offset 4
HOST_DATA 0 skb->next->csum_offset 0-u16max
HOST_DATA 0 skb->next->data_len 0-u32max[c]
HOST_DATA 0 skb->next->len 1-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->truesize 0-u32max
HOST_DATA 0 skb->prev->tstamp 500000002-4294967299794967295[c]
HOST_DATA 0 skb->prev->users.refs.counter s32min-0,2-s32max
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 2 tnl_params->addrs.daddr 0-u32max[u]
USER_DATA 2 tnl_params->addrs.saddr 0-u32max[u]
USER_DATA 2 tnl_params->check 0-u16max[u]
USER_DATA 2 tnl_params->daddr 0-u32max[u]
USER_DATA 2 tnl_params->frag_off 0-u16max[u]
USER_DATA 2 tnl_params->id 0-u16max[u]
USER_DATA 2 tnl_params->ihl 0-15[u]
USER_DATA 2 tnl_params->protocol 0-255[u]
USER_DATA 2 tnl_params->saddr 0-u32max[u]
USER_DATA 2 tnl_params->tos 0-255[u]
USER_DATA 2 tnl_params->tot_len 0-u16max[u]
USER_DATA 2 tnl_params->ttl 0-255[u]
USER_DATA 2 tnl_params->version 0-15[u]
USER_DATA 3 protocol 0-255[u]
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->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->prev->data_len
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 1 dev->group
NO_OVERFLOW_SIMPLE 1 dev->num_tc
NO_OVERFLOW_SIMPLE 1 dev->real_num_rx_queues
NO_OVERFLOW_SIMPLE 1 dev->real_num_tx_queues
NO_OVERFLOW_SIMPLE 1 dev->stats.rx_bytes
NO_OVERFLOW_SIMPLE 1 dev->stats.tx_bytes
NO_OVERFLOW_SIMPLE 1 dev->tx_queue_len
UNITS 2 tnl_params unit_byte
USER_PTR 2 tnl_params
HALF_LOCKED2 &txq->_xmit_lock
HALF_LOCKED2 bh
HALF_LOCKED2 flags
HALF_LOCKED2 rcu_read
HALF_LOCKED2 1 &dev->tx_global_lock

net/ipv4/ipip.c ipip_tunnel_xmit() -> ip_tunnel_xmit()

Type Parameter Key Value
PARAM_VALUE 0 skb 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->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->inner_ipproto 4,137
PARAM_VALUE 0 skb->inner_protocol_type 1
PARAM_VALUE 0 skb->protocol 2048,34887
PARAM_VALUE 1 dev 4096-ptr_max
PARAM_VALUE 1 dev->priv->collect_md 0
PARAM_VALUE 1 dev->rtnl_link_ops->maxtype 0-6,8-10,15,18,20,22,24,34,50
PARAM_VALUE 2 tnl_params 4096-ptr_max
PARAM_VALUE 2 tnl_params->protocol 0,4,137
PARAM_VALUE 3 protocol 4,137
BUF_SIZE 0 skb (-1)-s32max
BUF_SIZE 0 skb (-1)-s32max
BUF_SIZE 2 tnl_params 20
CAPPED_DATA 0 skb 1
CAPPED_DATA 2 tnl_params->protocol 1
CAPPED_DATA 3 protocol 1
DATA_SOURCE 0 skb $0
DATA_SOURCE 1 dev $1
FUZZY_MAX 3 protocol 137
PARAM_COMPARE 3 protocol >= $2->protocol
BIT_INFO 3 protocol 0x0,0x8d
HARD_MAX 3 protocol 137
RX_PATH
TASK_NOT_RUNNING
NOCHECK_CALL
HOST_DATA 0 skb->csum_offset 0-u16max
HOST_DATA 0 skb->len 0-u32max[c]
HOST_DATA 0 skb->next->csum_offset 0-u16max
HOST_DATA 0 skb->next->data_len 0-u32max[c]
HOST_DATA 0 skb->next->len 1-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->truesize 0-u32max
HOST_DATA 0 skb->prev->tstamp 500000002-4294967299794967295[c]
HOST_DATA 0 skb->prev->users.refs.counter s32min-0,2-s32max
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->extensions
NO_OVERFLOW_SIMPLE 0 skb->len
NO_OVERFLOW_SIMPLE 0 skb->prev->data_len
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->tail
NO_OVERFLOW_SIMPLE 0 skb->truesize
NO_OVERFLOW_SIMPLE 1 dev->group
NO_OVERFLOW_SIMPLE 1 dev->num_tc
NO_OVERFLOW_SIMPLE 1 dev->proto_down
NO_OVERFLOW_SIMPLE 1 dev->real_num_rx_queues
NO_OVERFLOW_SIMPLE 1 dev->real_num_tx_queues
NO_OVERFLOW_SIMPLE 1 dev->stats.rx_bytes
NO_OVERFLOW_SIMPLE 1 dev->stats.tx_bytes
NO_OVERFLOW_SIMPLE 1 dev->tx_queue_len
HALF_LOCKED2 &txq->_xmit_lock
HALF_LOCKED2 bh
HALF_LOCKED2 flags
HALF_LOCKED2 rcu_read