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Defined in 1 files as a prototype:

Defined in 1 files as a function:

Referenced in 3 files:

Smatch caller information:

net/core/filter.c ____bpf_skb_fib_lookup() -> is_skb_forwardable()

Type Parameter Key Value
PARAM_VALUE 0 dev 4096-ptr_max
PARAM_VALUE 1 skb 4096-ptr_max
CAPPED_DATA 0 dev->ifindex 1
CAPPED_DATA 1 skb->dev->nd_net.net 1
DATA_SOURCE 0 dev r dev_get_by_index_rcu
DATA_SOURCE 1 skb $0

net/bridge/br_forward.c __br_forward() -> is_skb_forwardable()

Type Parameter Key Value
PARAM_VALUE 1 skb 4096-ptr_max
BUF_SIZE 1 skb (-1)-s32max
BUF_SIZE 1 skb (-1)-s32max
CAPPED_DATA 1 skb->head 1
DATA_SOURCE 1 skb r br_handle_vlan
PARAM_COMPARE 1 skb == $1
RX_PATH
TASK_NOT_RUNNING
HOST_DATA 1 skb->csum_offset 0-u16max
HOST_DATA 1 skb->data_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->truesize 0-u32max[c]
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 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->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
UNITS 0 dev unit_byte
HALF_LOCKED2 rcu_read

net/bridge/br_forward.c br_dev_queue_push_xmit() -> is_skb_forwardable()

Type Parameter Key Value
PARAM_VALUE 1 skb 4096-ptr_max
BUF_SIZE 1 skb (-1)-s32max
BUF_SIZE 1 skb (-1)-s32max
CAPPED_DATA 1 skb->head 1
DATA_SOURCE 1 skb $2
RX_PATH
TASK_NOT_RUNNING
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 0 dev->group
NO_OVERFLOW_SIMPLE 0 dev->num_tc
NO_OVERFLOW_SIMPLE 0 dev->proto_down
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->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 dev unit_byte
UNITS 1 skb unit_byte
HALF_LOCKED2 bh
HALF_LOCKED2 rcu_read