Helper function bpf_dynptr_from_mem
Definition
Copyright (c) 2015 The Libbpf Authors. All rights reserved.
Get a dynptr to local memory data.
data must be a ptr to a map value. The maximum size supported is DYNPTR_MAX_SIZE. flags is currently unused.
Returns
0 on success, -E2BIG if the size exceeds DYNPTR_MAX_SIZE, -EINVAL if flags is not 0.
static long (* const bpf_dynptr_from_mem)(void *data, __u32 size, __u64 flags, struct bpf_dynptr *ptr) = (void *) 197;
Usage
Docs could be improved
This part of the docs is incomplete, contributions are very welcome
Program types
This helper call can be used in the following program types:
BPF_PROG_TYPE_CGROUP_DEVICEBPF_PROG_TYPE_CGROUP_SKBBPF_PROG_TYPE_CGROUP_SOCKBPF_PROG_TYPE_CGROUP_SOCKOPTBPF_PROG_TYPE_CGROUP_SOCK_ADDRBPF_PROG_TYPE_CGROUP_SYSCTLBPF_PROG_TYPE_FLOW_DISSECTORBPF_PROG_TYPE_KPROBEBPF_PROG_TYPE_LSMBPF_PROG_TYPE_LWT_INBPF_PROG_TYPE_LWT_OUTBPF_PROG_TYPE_LWT_SEG6LOCALBPF_PROG_TYPE_LWT_XMITBPF_PROG_TYPE_NETFILTERBPF_PROG_TYPE_PERF_EVENTBPF_PROG_TYPE_RAW_TRACEPOINTBPF_PROG_TYPE_RAW_TRACEPOINT_WRITABLEBPF_PROG_TYPE_SCHED_ACTBPF_PROG_TYPE_SCHED_CLSBPF_PROG_TYPE_SK_LOOKUPBPF_PROG_TYPE_SK_MSGBPF_PROG_TYPE_SK_REUSEPORTBPF_PROG_TYPE_SK_SKBBPF_PROG_TYPE_SOCKET_FILTERBPF_PROG_TYPE_SOCK_OPSBPF_PROG_TYPE_STRUCT_OPSBPF_PROG_TYPE_SYSCALLBPF_PROG_TYPE_TRACEPOINTBPF_PROG_TYPE_TRACINGBPF_PROG_TYPE_XDP
Example
Docs could be improved
This part of the docs is incomplete, contributions are very welcome