- 21 Dec, 2017 12 commits
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Alexander Aring authored
This patch adds extack support for the cbq qdisc implementation by adding NL_SET_ERR_MSG in validation of user input. Also it serves to illustrate a use case of how the infrastructure ops api changes are to be used by individual qdiscs. Cc: David Ahern <dsahern@gmail.com> Acked-by:
Jamal Hadi Salim <jhs@mojatatu.com> Signed-off-by:
Alexander Aring <aring@mojatatu.com> Signed-off-by:
David S. Miller <davem@davemloft.net>
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Alexander Aring authored
This patch adds extack support for the function qdisc_create_dflt which is a common used function in the tc subsystem. Callers which are interested in the receiving error can assign extack to get a more detailed information why qdisc_create_dflt failed. The function qdisc_create_dflt will also call an init callback which can fail by any per-qdisc specific handling. Cc: David Ahern <dsahern@gmail.com> Acked-by:
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Alexander Aring authored
This patch adds extack support for the function qdisc_alloc which is a common used function in the tc subsystem. Callers which are interested in the receiving error can assign extack to get a more detailed information why qdisc_alloc failed. Cc: David Ahern <dsahern@gmail.com> Acked-by:
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Alexander Aring authored
This patch adds extack support for the function tcf_block_get which is a common used function in the tc subsystem. Callers which are interested in the receiving error can assign extack to get a more detailed information why tcf_block_get failed. Cc: David Ahern <dsahern@gmail.com> Acked-by:
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Alexander Aring authored
This patch adds extack support for the function qdisc_get_rtab which is a common used function in the tc subsystem. Callers which are interested in the receiving error can assign extack to get a more detailed information why qdisc_get_rtab failed. Cc: David Ahern <dsahern@gmail.com> Acked-by:
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Alexander Aring authored
This patch adds extack support for graft callback to prepare per-qdisc specific changes for extack. Cc: David Ahern <dsahern@gmail.com> Acked-by:
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Alexander Aring authored
This patch adds extack support for block callback to prepare per-qdisc specific changes for extack. Cc: David Ahern <dsahern@gmail.com> Acked-by:
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Alexander Aring authored
This patch adds extack support for class change callback api. This prepares to handle extack support inside each specific class implementation. Cc: David Ahern <dsahern@gmail.com> Acked-by:
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Alexander Aring authored
This patch adds extack support for change callback for qdisc ops structtur to prepare per-qdisc specific changes for extack. Cc: David Ahern <dsahern@gmail.com> Acked-by:
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Alexander Aring authored
This patch adds extack support for init callback to prepare per-qdisc specific changes for extack. Cc: David Ahern <dsahern@gmail.com> Acked-by:
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Alexander Aring authored
This patch adds extack support for generic qdisc handling. The extack will be set deeper to each called function which is not part of netdev core api. Cc: David Ahern <dsahern@gmail.com> Acked-by:
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Alexander Aring authored
This patch fix checkpatch issues for upcomming patches according to the sched api file. It changes mostly how to check on null pointer. Acked-by:
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- 20 Dec, 2017 28 commits
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David S. Miller authored
Julian Wiedmann says: ==================== s390/net: updates 2017-12-20 Please apply the following patch series for 4.16. Nothing too exciting, mostly just beating the qeth L3 code into shape. ==================== Signed-off-by: -
Julian Wiedmann authored
There's a common helper for parsing an IP address string, let's use it. Signed-off-by:
Julian Wiedmann <jwi@linux.vnet.ibm.com> Signed-off-by:
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Julian Wiedmann authored
The TSO and IQD paths already need to fix-up the current values, and OSA will require more flexibility in the future as well. So just let the caller specify the data length. Signed-off-by:
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Julian Wiedmann authored
Consolidate the cast type translation, move the passthru path out of the RCU-guarded section, and use the appropriate rtable helpers when determining the next-hop address. Signed-off-by:
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Julian Wiedmann authored
The L3 packet descriptor's 'dest_addr' field is used for a different purpose in RX descriptors. Clean up the hard-coded byte accesses and try to be more self-documenting. Signed-off-by:
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Julian Wiedmann authored
When 1. an skb has no neighbour, and 2. skb->protocol is not IP[V6], we select the skb's cast type based on its destination MAC address. The multicast check is currently restricted to Multicast IP-mapped MACs. Extend it to also cover non-IP Multicast MACs. Signed-off-by:
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Julian Wiedmann authored
Use the proper helpers to check for multicast IP addressing, and remove some ancient Token Ring code. Signed-off-by:
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Julian Wiedmann authored
Instead of assuming that skb->data points to the Ethernet header, use the right helper and struct to access the Ethertype field. Signed-off-by:
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Julian Wiedmann authored
Once all of qeth_l3_set_rx_mode()'s single-use helpers are folded back in, the two implementations actually look quite similar. So improve the readability by converting both set_rx_mode() routines to a common format. This also allows us to walk ip_mc_htable just once, instead of three times. Signed-off-by:
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Julian Wiedmann authored
Be a little more self-documenting, and get rid of OSA_ADDR_LEN. Signed-off-by:
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Julian Wiedmann authored
For adding/removing a MAC address, use just one helper each that handles both unicast and multicast. Saves one level of indirection for multicast addresses, while improving the error reporting for unicast addresses. Signed-off-by:
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Julian Wiedmann authored
Instead of tracking the uc/mc state in each MAC address object, just check the multicast bit in the address itself. Signed-off-by:
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Julian Wiedmann authored
commit "s390/qeth: use ip*_eth_mc_map helpers" removed the last occurrence of CONFIG_IPV6-dependent code. Signed-off-by:
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Julian Wiedmann authored
Get rid of some wrapper indirection, and stop accessing the skb at hard-coded offsets. Signed-off-by:
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Elena Reshetova authored
atomic_t variables are currently used to implement reference counters with the following properties: - counter is initialized to 1 using atomic_set() - a resource is freed upon counter reaching zero - once counter reaches zero, its further increments aren't allowed - counter schema uses basic atomic operations (set, inc, inc_not_zero, dec_and_test, etc.) Such atomic variables should be converted to a newly provided refcount_t type and API that prevents accidental counter overflows and underflows. This is important since overflows and underflows can lead to use-after-free situation and be exploitable. The variable qeth_reply.refcnt is used as pure reference counter. Convert it to refcount_t and fix up the operations. Suggested-by:
Kees Cook <keescook@chromium.org> Reviewed-by:
David Windsor <dwindsor@gmail.com> Reviewed-by:
Hans Liljestrand <ishkamiel@gmail.com> Signed-off-by:
Elena Reshetova <elena.reshetova@intel.com> [jwi: removed the WARN_ONs. Use CONFIG_REFCOUNT_FULL if you care.] Signed-off-by:
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Elena Reshetova authored
atomic_t variables are currently used to implement reference counters with the following properties: - counter is initialized to 1 using atomic_set() - a resource is freed upon counter reaching zero - once counter reaches zero, its further increments aren't allowed - counter schema uses basic atomic operations (set, inc, inc_not_zero, dec_and_test, etc.) Such atomic variables should be converted to a newly provided refcount_t type and API that prevents accidental counter overflows and underflows. This is important since overflows and underflows can lead to use-after-free situation and be exploitable. The variable lcs_reply.refcnt is used as pure reference counter. Convert it to refcount_t and fix up the operations. Suggested-by:
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git://git.open-mesh.org/linux-mergeDavid S. Miller authored
Simon Wunderlich says: ==================== This feature/cleanup patchset includes the following patches: - bump version strings, by Simon Wunderlich - de-inline hash functions to save memory footprint, by Denys Vlasenko - Add License information to various files, by Sven Eckelmann (3 patches) - Change batman_adv.h from ISC to MIT, by Sven Eckelmann - Improve various includes, by Sven Eckelmann (5 patches) - Lots of kernel-doc work by Sven Eckelmann (8 patches) ==================== Signed-off-by: -
David S. Miller authored
Yafang Shao says: ==================== replace tcp_set_state tracepoint with inet_sock_set_state According to the discussion in the mail thread https://patchwork.kernel.org/patch/10099243/, tcp_set_state tracepoint is renamed to inet_sock_set_state tracepoint and is moved to include/trace/events/sock.h. With this new tracepoint, we can trace AF_INET/AF_INET6 sock state transitions. As there's only one single tracepoint for inet, so I didn't create a new trace file named trace/events/inet_sock.h, and just place it in include/trace/events/sock.h Currently TCP/DCCP/SCTP state transitions are traced with this tracepoint. - Why not more protocol ? If we really think that anonter protocol should be traced, I will modify the code to trace it. I just want to make the code easy and not output useless information. ==================== Signed-off-by:
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Yafang Shao authored
With changes in inet_ files, SCTP state transitions are traced with inet_sock_set_state tracepoint. As SCTP state names, i.e. SCTP_SS_CLOSED, SCTP_SS_ESTABLISHED, have the same value with TCP state names. So the output info still print the TCP state names, that makes the code easy. Signed-off-by:
Yafang Shao <laoar.shao@gmail.com> Signed-off-by:
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Yafang Shao authored
With changes in inet_ files, DCCP state transitions are traced with inet_sock_set_state tracepoint. Signed-off-by:
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Yafang Shao authored
sk_state_load is only used by AF_INET/AF_INET6, so rename it to inet_sk_state_load and move it into inet_sock.h. sk_state_store is removed as it is not used any more. Signed-off-by:
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Yafang Shao authored
As sk_state is a common field for struct sock, so the state transition tracepoint should not be a TCP specific feature. Currently it traces all AF_INET state transition, so I rename this tracepoint to inet_sock_set_state tracepoint with some minor changes and move it into trace/events/sock.h. We dont need to create a file named trace/events/inet_sock.h for this one single tracepoint. Two helpers are introduced to trace sk_state transition - void inet_sk_state_store(struct sock *sk, int newstate); - void inet_sk_set_state(struct sock *sk, int state); As trace header should not be included in other header files, so they are defined in sock.c. The protocol such as SCTP maybe compiled as a ko, hence export inet_sk_set_state(). Signed-off-by: -
Steven Rostedt (VMware) authored
The TCP trace events (specifically tcp_set_state), maps emums to symbol names via __print_symbolic(). But this only works for reading trace events from the tracefs trace files. If perf or trace-cmd were to record these events, the event format file does not convert the enum names into numbers, and you get something like: __print_symbolic(REC->oldstate, { TCP_ESTABLISHED, "TCP_ESTABLISHED" }, { TCP_SYN_SENT, "TCP_SYN_SENT" }, { TCP_SYN_RECV, "TCP_SYN_RECV" }, { TCP_FIN_WAIT1, "TCP_FIN_WAIT1" }, { TCP_FIN_WAIT2, "TCP_FIN_WAIT2" }, { TCP_TIME_WAIT, "TCP_TIME_WAIT" }, { TCP_CLOSE, "TCP_CLOSE" }, { TCP_CLOSE_WAIT, "TCP_CLOSE_WAIT" }, { TCP_LAST_ACK, "TCP_LAST_ACK" }, { TCP_LISTEN, "TCP_LISTEN" }, { TCP_CLOSING, "TCP_CLOSING" }, { TCP_NEW_SYN_RECV, "TCP_NEW_SYN_RECV" }) Where trace-cmd and perf do not know the values of those enums. Use the TRACE_DEFINE_ENUM() macros that will have the trace events convert the enum strings into their values at system boot. This will allow perf and trace-cmd to see actual numbers and not enums: __print_symbolic(REC->oldstate, { 1, "TCP_ESTABLISHED" }, { 2, "TCP_SYN_SENT" }, { 3, "TCP_SYN_RECV" }, { 4, "TCP_FIN_WAIT1" }, { 5, "TCP_FIN_WAIT2" }, { 6, "TCP_TIME_WAIT" }, { 7, "TCP_CLOSE" }, { 8, "TCP_CLOSE_WAIT" }, { 9, "TCP_LAST_ACK" }, { 10, "TCP_LISTEN" }, { 11, "TCP_CLOSING" }, { 12, "TCP_NEW_SYN_RECV" }) Signed-off-by:Steven Rostedt (VMware) <rostedt@goodmis.org> Acked-by:
Song Liu <songliubraving@fb.com> Signed-off-by:
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Prashant Bhole authored
- Checking return value with IS_ERROR_OR_NULL - Added error handling where it was not handled Signed-off-by:
Prashant Bhole <bhole_prashant_q7@lab.ntt.co.jp> Acked-by:
Jakub Kicinski <jakub.kicinski@netronome.com> Signed-off-by:
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Haishuang Yan authored
If md is NULL, tun_dst must be freed, otherwise it will cause memory leak. Fixes: ef7baf5e ("ip6_gre: add ip6 erspan collect_md mode") Cc: William Tu <u9012063@gmail.com> Signed-off-by:
Haishuang Yan <yanhaishuang@cmss.chinamobile.com> Signed-off-by:
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Haishuang Yan authored
If md is NULL, tun_dst must be freed, otherwise it will cause memory leak. Fixes: 1a66a836 ("gre: add collect_md mode to ERSPAN tunnel") Cc: William Tu <u9012063@gmail.com> Signed-off-by:
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Haishuang Yan authored
Same as ipv4 code, when ip6erspan_rcv call return PACKET_REJECT, we should call icmpv6_send to send icmp unreachable message in error path. Fixes: 5a963eb6 ("ip6_gre: Add ERSPAN native tunnel support") Acked-by:
William Tu <u9012063@gmail.com> Cc: William Tu <u9012063@gmail.com> Signed-off-by:
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Haishuang Yan authored
When erspan_rcv call return PACKET_REJECT, we shoudn't call ipgre_rcv to process packets again, instead send icmp unreachable message in error path. Fixes: 84e54fe0 ("gre: introduce native tunnel support for ERSPAN") Acked-by:
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