Defined in 1 files as a prototype:

Defined in 1 files as a function:

Referenced in 3 files:

Smatch caller information:

drivers/net/wireguard/receive.c wg_check_packet_protocol() -> ip_tunnel_parse_protocol()

Type Parameter Key Value
PARAM_VALUE 0 skb 4096-ptr_max
PARAM_VALUE 0 skb->_nfct 0
PARAM_VALUE 0 skb->csum_complete_sw 1
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 0-4294967295
PARAM_VALUE 0 skb->dev->ip6_ptr->mc_query_work.wq->dfl_pwq 0-s64max
PARAM_VALUE 0 skb->dev->ip6_ptr->mc_query_work.wq->saved_max_active s32min-s32max
PARAM_VALUE 0 skb->dev->ip6_ptr->mc_query_work.wq->saved_min_active s32min-s32max
PARAM_VALUE 0 skb->dev->ip6_ptr->mc_report_work.wq->dfl_pwq 0-s64max
PARAM_VALUE 0 skb->dev->ip6_ptr->mc_report_work.wq->saved_max_active s32min-s32max
PARAM_VALUE 0 skb->dev->ip6_ptr->mc_report_work.wq->saved_min_active s32min-s32max
PARAM_VALUE 0 skb->dev->ip6_ptr->stats.proc_dir_entry 0,4806605944481423360
PARAM_VALUE 0 skb->dev->linkwatch_dev_tracker->alloc_stack_handle 0-4294967295
PARAM_VALUE 0 skb->dev->linkwatch_dev_tracker->free_stack_handle 0-4294967295
PARAM_VALUE 0 skb->dev->nd_net.net->gen->s.len 0-s32max
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 0,8,32,40,48,56,88,112,120,144,160,224,240,256,296,616,624,728,744,1056,1128,1336,1616,2176,2240,2272,2560,3296,3544,3552,9688-u64max
PARAM_VALUE 0 skb->extensions 0
PARAM_VALUE 0 skb->next 0
PARAM_VALUE 0 skb->sk->__sk_common.skc_net.net->gen->s.len 0-s32max
PARAM_VALUE 0 skb->sk->__sk_common.skc_net.net->xfrm.nat_keepalive_work.wq->dfl_pwq 0-s64max
PARAM_VALUE 0 skb->sk->__sk_common.skc_net.net->xfrm.nat_keepalive_work.wq->saved_max_active s32min-s32max
PARAM_VALUE 0 skb->sk->__sk_common.skc_net.net->xfrm.nat_keepalive_work.wq->saved_min_active s32min-s32max
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->sk->sk_peer_cred->process_keyring->user->qnbytes s32min-s32max
PARAM_VALUE 0 skb->sk->sk_peer_cred->process_keyring->user->qnkeys s32min-s32max
PARAM_VALUE 0 skb->sk->sk_peer_cred->request_key_auth->user->qnbytes s32min-s32max
PARAM_VALUE 0 skb->sk->sk_peer_cred->request_key_auth->user->qnkeys s32min-s32max
PARAM_VALUE 0 skb->sk->sk_peer_cred->session_keyring->user->qnbytes s32min-s32max
PARAM_VALUE 0 skb->sk->sk_peer_cred->session_keyring->user->qnkeys s32min-s32max
PARAM_VALUE 0 skb->sk->sk_peer_cred->thread_keyring->user->qnbytes s32min-s32max
PARAM_VALUE 0 skb->sk->sk_peer_cred->thread_keyring->user->qnkeys s32min-s32max
PARAM_VALUE 0 *skb->dev->name 0-255
BUF_SIZE 0 skb (-1)-s32max
BUF_SIZE 0 skb (-1)-s32max
CAPPED_DATA 0 skb->dev->nd_net.net 1
DATA_SOURCE 0 skb $0
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->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->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->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->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
UNITS 0 skb unit_byte

drivers/net/wireguard/receive.c wg_packet_consume_data_done() -> ip_tunnel_parse_protocol()

Type Parameter Key Value
PARAM_VALUE 0 skb 4096-ptr_max
PARAM_VALUE 0 skb->_nfct 0
PARAM_VALUE 0 skb->_skb_refdst 0
PARAM_VALUE 0 skb->active_extensions 0
PARAM_VALUE 0 skb->cb 4096-ptr_max
PARAM_VALUE 0 skb->csum_level u64max
PARAM_VALUE 0 skb->dev 4096-ptr_max
PARAM_VALUE 0 skb->headers.alloc_cpu 0
PARAM_VALUE 0 skb->headers.csum 0
PARAM_VALUE 0 skb->headers.csum_complete_sw 0
PARAM_VALUE 0 skb->headers.csum_level 0
PARAM_VALUE 0 skb->headers.csum_not_inet 0
PARAM_VALUE 0 skb->headers.csum_offset 0
PARAM_VALUE 0 skb->headers.csum_start 0
PARAM_VALUE 0 skb->headers.csum_valid 0
PARAM_VALUE 0 skb->headers.decrypted 0
PARAM_VALUE 0 skb->headers.dst_pending_confirm 0
PARAM_VALUE 0 skb->headers.encap_hdr_csum 0
PARAM_VALUE 0 skb->headers.encapsulation 0
PARAM_VALUE 0 skb->headers.from_ingress 0
PARAM_VALUE 0 skb->headers.hash 0
PARAM_VALUE 0 skb->headers.ignore_df 0
PARAM_VALUE 0 skb->headers.inner_ipproto 0
PARAM_VALUE 0 skb->headers.inner_mac_header 0
PARAM_VALUE 0 skb->headers.inner_network_header 0
PARAM_VALUE 0 skb->headers.inner_protocol 0
PARAM_VALUE 0 skb->headers.inner_protocol_type 0
PARAM_VALUE 0 skb->headers.inner_transport_header 0
PARAM_VALUE 0 skb->headers.ip_summed 0
PARAM_VALUE 0 skb->headers.ipvs_property 0
PARAM_VALUE 0 skb->headers.kcov_handle.val 0
PARAM_VALUE 0 skb->headers.l4_hash 0
PARAM_VALUE 0 skb->headers.mac_header 0
PARAM_VALUE 0 skb->headers.mark 0
PARAM_VALUE 0 skb->headers.napi_id 0
PARAM_VALUE 0 skb->headers.ndisc_nodetype 0
PARAM_VALUE 0 skb->headers.network_header 0
PARAM_VALUE 0 skb->headers.nf_skip_egress 0
PARAM_VALUE 0 skb->headers.nf_trace 0
PARAM_VALUE 0 skb->headers.no_fcs 0
PARAM_VALUE 0 skb->headers.offload_fwd_mark 0
PARAM_VALUE 0 skb->headers.offload_l3_fwd_mark 0
PARAM_VALUE 0 skb->headers.ooo_okay 0
PARAM_VALUE 0 skb->headers.pkt_type 0
PARAM_VALUE 0 skb->headers.priority 0
PARAM_VALUE 0 skb->headers.protocol 0
PARAM_VALUE 0 skb->headers.redirected 0
PARAM_VALUE 0 skb->headers.remcsum_offload 0
PARAM_VALUE 0 skb->headers.reserved_tailroom 0
PARAM_VALUE 0 skb->headers.secmark 0
PARAM_VALUE 0 skb->headers.sender_cpu 0
PARAM_VALUE 0 skb->headers.skb_iif 0
PARAM_VALUE 0 skb->headers.slow_gro 0
PARAM_VALUE 0 skb->headers.sw_hash 0
PARAM_VALUE 0 skb->headers.tc_at_ingress 0
PARAM_VALUE 0 skb->headers.tc_depth 0
PARAM_VALUE 0 skb->headers.tc_index 0
PARAM_VALUE 0 skb->headers.tc_skip_classify 0
PARAM_VALUE 0 skb->headers.transport_header 0
PARAM_VALUE 0 skb->headers.tstamp_type 0
PARAM_VALUE 0 skb->headers.unreadable 0
PARAM_VALUE 0 skb->headers.vlan_all 0
PARAM_VALUE 0 skb->headers.vlan_proto 0
PARAM_VALUE 0 skb->headers.vlan_tci 0
PARAM_VALUE 0 skb->headers.wifi_acked 0
PARAM_VALUE 0 skb->headers.wifi_acked_valid 0
PARAM_VALUE 0 skb->ignore_df 0
PARAM_VALUE 0 skb->ip_summed 1
PARAM_VALUE 0 skb->ipvs_property 0
PARAM_VALUE 0 skb->len 1-u32max
PARAM_VALUE 0 skb->mac_len 0
PARAM_VALUE 0 skb->mark 0
PARAM_VALUE 0 skb->nf_trace 0
PARAM_VALUE 0 skb->offload_fwd_mark 0
PARAM_VALUE 0 skb->offload_l3_fwd_mark 0
PARAM_VALUE 0 skb->peeked 0
PARAM_VALUE 0 skb->pkt_type 0
PARAM_VALUE 0 skb->protocol 2048,34525
PARAM_VALUE 0 skb->queue_mapping 0
PARAM_VALUE 0 skb->redirected 0
PARAM_VALUE 0 skb->skb_iif 0
PARAM_VALUE 0 skb->skb_mstamp_ns 0
PARAM_VALUE 0 skb->tc_index 0
PARAM_VALUE 0 skb->tstamp 0
DATA_SOURCE 0 skb $1
RX_PATH
TASK_NOT_RUNNING
HALF_LOCKED2 bh
HALF_LOCKED2 rcu_read

drivers/net/wireguard/device.c wg_check_packet_protocol() -> ip_tunnel_parse_protocol()

Type Parameter Key Value
PARAM_VALUE 0 skb 0,4096-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
BUF_SIZE 0 skb (-1)-s32max
BUF_SIZE 0 skb (-1)-s32max
DATA_SOURCE 0 skb $0
RX_PATH
TASK_NOT_RUNNING
HOST_DATA 0 skb->csum_offset 0-u16max
HOST_DATA 0 skb->data_len 0-2147483648[c]
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
HALF_LOCKED2 &dev->tx_global_lock
HALF_LOCKED2 &txq->_xmit_lock
HALF_LOCKED2 bh
HALF_LOCKED2 flags
HALF_LOCKED2 rcu_read

net/packet/af_packet.c dev_parse_header_protocol() -> (struct header_ops)->parse_protocol()

Type Parameter Key Value
PARAM_VALUE 0 skb 4096-ptr_max
PARAM_VALUE 0 skb->dev 4096-ptr_max
PARAM_VALUE 0 skb->dev->header_ops 4096-ptr_max
PARAM_VALUE 0 skb->dev->header_ops->parse_protocol 4927389631704563712,5013334982761803776,5267698508377800704
PARAM_VALUE 0 skb->protocol 0,3
PARAM_VALUE 0 skb->skb_mstamp_ns 0
PARAM_VALUE 0 skb->tstamp 0
PARAM_VALUE 0 skb->tstamp_type 0
BUF_SIZE 0 skb (-1)-s32max
BUF_SIZE 0 skb (-1)-s32max
DATA_SOURCE 0 skb $0
FUZZY_MAX 0 skb->protocol 3
RX_PATH
TASK_NOT_RUNNING
HOST_DATA 0 skb->data_len 0-u32max[c]
HOST_DATA 0 skb->len 1-u32max[c]
NO_OVERFLOW_SIMPLE 0 skb->end
NO_OVERFLOW_SIMPLE 0 skb->sk->sk_backlog.len

drivers/net/tap.c dev_parse_header_protocol() -> (struct header_ops)->parse_protocol()

Type Parameter Key Value
PARAM_VALUE 0 skb 4096-ptr_max
PARAM_VALUE 0 skb->data 4096-ptr_max
PARAM_VALUE 0 skb->dev 4096-ptr_max
PARAM_VALUE 0 skb->dev->header_ops 4096-ptr_max
PARAM_VALUE 0 skb->dev->header_ops->parse_protocol 4927389631704563712,5013334982761803776,5267698508377800704
PARAM_VALUE 0 skb->network_header 1-u16max
PARAM_VALUE 0 skb->protocol 0
BUF_SIZE 0 skb (-1)-s32max
BUF_SIZE 0 skb (-1)-s32max
DATA_SOURCE 0 skb $0
RX_PATH
TASK_NOT_RUNNING
HALF_LOCKED2 rcu_read

drivers/net/tun.c dev_parse_header_protocol() -> (struct header_ops)->parse_protocol()

Type Parameter Key Value
PARAM_VALUE 0 skb 4096-ptr_max
PARAM_VALUE 0 skb->data 4096-ptr_max
PARAM_VALUE 0 skb->dev 4096-ptr_max
PARAM_VALUE 0 skb->dev->header_ops 4096-ptr_max
PARAM_VALUE 0 skb->dev->header_ops->parse_protocol 4927389631704563712,5013334982761803776,5267698508377800704
PARAM_VALUE 0 skb->network_header 1-u16max
PARAM_VALUE 0 skb->protocol 0
BUF_SIZE 0 skb (-1)-s32max
BUF_SIZE 0 skb (-1)-s32max
DATA_SOURCE 0 skb $0
RX_PATH
TASK_NOT_RUNNING
NO_OVERFLOW_SIMPLE 0 skb->sk->sk_backlog.len
HALF_LOCKED2 bh
HALF_LOCKED2 rcu_read

drivers/net/virtio_net.c dev_parse_header_protocol() -> (struct header_ops)->parse_protocol()

Type Parameter Key Value
PARAM_VALUE 0 skb 4096-ptr_max
PARAM_VALUE 0 skb->dev 4096-ptr_max
PARAM_VALUE 0 skb->dev->header_ops 4096-ptr_max
PARAM_VALUE 0 skb->dev->header_ops->parse_protocol 4927389631704563712,5013334982761803776,5267698508377800704
PARAM_VALUE 0 skb->network_header 1-u16max
PARAM_VALUE 0 skb->protocol 0
BUF_SIZE 0 skb (-1)-s32max
BUF_SIZE 0 skb (-1)-s32max
DATA_SOURCE 0 skb $0
RX_PATH
TASK_NOT_RUNNING
NO_OVERFLOW_SIMPLE 0 skb->len
NO_OVERFLOW_SIMPLE 0 skb->tail
HALF_LOCKED2 bh
HALF_LOCKED2 rcu_read