Update LICENCE.

If process_dispatch_ring() has data packet to be processed and it is considered non-idle state.

The CPU usage of packet_dispatcher() is modified to usr.

fix a plurality of packets may not statistics in ff_traffic.rx_packets and ff_traffic.rx_bytes.

Support DPDK 20.11.0(LTS).

Fix some issues of ff msg.

Add `ff_regist_pcblddr_fun` to regist a pcb lddr function in F-Stack.

If There are multiple ips, and F-Stack client application can choose a source ip by yourself, instead always use the first ip.

fix use after free issue in mbuf free

Two kinds of mbuf are used in f-stack: freebsd mbuf and dpdk mbuf.

freebsd mbufs are metadata used in freebsd stack, and their data
pointers (m_data) point to

fix use after free issue in mbuf free

Two kinds of mbuf are used in f-stack: freebsd mbuf and dpdk mbuf.

freebsd mbufs are metadata used in freebsd stack, and their data
pointers (m_data) point to dpdk mbuf's data (buf_addr). And they have
their own chain, like this:

bsd_mbuf1 -> bsd_mbuf2 -> bsd_mbuf3
\ \ \
dpdk_mbuf1 -> dpdk_mbuf2 -> dpdk_mbuf3

Considering the map relationship,

- m_freem() is corresponding to rte_pktmbuf_free(), is to free the whole
chain of mbufs.
- m_free() is corresponding to rte_pktmbuf_free_seg(), is to free the
specified mbuf segment.

The current implementation in f-stack uses rte_pktmbuf_free() for
m_free(). This leads to mbufs, which are still in use, be freed
unexpectedly. For example, if the bsd_mbuf1 is trimed into zero length,
bsd will invoke m_free() to free the specified segment, however, the
whole mbuf chain is freed by calling rte_pktmbuf_free().

#0 rte_pktmbuf_free (m=0x22006fb480)
#1 in ff_dpdk_pktmbuf_free (m=0x22006fb480)
#2 in ff_mbuf_ext_free (m=0x7ffff7f82800, arg1=0x22006fb480, arg2=0x0)
#3 in mb_free_ext (m=0x7ffff7f82800)
#4 in m_free (m=0x7ffff7f82800)
#5 in sbcompress (sb=, m=0x7ffff7f82800, n=)
#6 in sbappendstream_locked (sb=, m=0x7ffff7f82800, flags=0)

The fix is straightforward. Use the correct API for segment free.

Reported-by: Yong-Hao Zou <[email protected]>
Signed-off-by: Jianfeng Tan <[email protected]>

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update comments

update comments

update comments

update create_tcp_flow parameter

update init_flow

Replace deprecated filter api with generic flowapi

Bugfix: support rte_flow_isolate for multi lcore (#562)

* Bugfix: support rte_flow_isolate

init flow isolate mode only run once

Fix bug of `sysctl` in tools/compat/sysctl.c.

The ff msg shouldn't to free while `ff_ipc_send` success but `ff_ipc_recv` failed (such as F-Stack app are breaking by gdb).

Add configuration options `symmetric_rss` to set whether to use symmetric RSS.

DPDK: upgrade to DPDK 19.11.2(LTS).

#add knictl support

update indent size

dump packets by core, instead of by ports;without fopen/fclose while dumping

Merge patch of Configuration param to skip "TX checksum offload", refer #448.

Fix mac set bug.

Bonding: supported. but it can't work in multi-processes, to be fix.

packet_dispatcher support vlan.