On Tue, Apr 9, 2024 at 1:11 AM Marco Elver wrote:
>
> On Mon, 8 Apr 2024 at 20:24, Alexei Starovoitov
> wrote:
> >
> > On Mon, Apr 8, 2024 at 2:30 AM Marco Elver wrote:
> > >
> > > On Fri, 5 Apr 2024 at 22:28, Andrii Nakryiko
> > > wrote:
>
On Mon, Apr 8, 2024 at 2:30 AM Marco Elver wrote:
>
> On Fri, 5 Apr 2024 at 22:28, Andrii Nakryiko
> wrote:
> >
> > On Fri, Apr 5, 2024 at 1:28 AM Marco Elver wrote:
> > >
> > > On Fri, 5 Apr 2024 at 01:23, Alexei Starovoitov
> > > wrote:
&g
On Thu, Apr 4, 2024 at 12:02 PM Marco Elver wrote:
>
> With all the known caveats, tracing BPF programs may directly write to
> user-space memory with the bpf_probe_write_user() helper. Memory safety
> is an obvious problem when using this helper, since it is too easy to
> overwrite memory across
On Mon, Oct 21, 2019 at 1:57 AM Magnus Karlsson
wrote:
>
> Added sections on all the bind flags, libbpf, all the setsockopts and
> all the getsockopts. Also updated the document to reflect the latest
> features and to correct some spelling errors.
>
> v1 -> v2:
> * Updated XDP program with latest
On Sun, Oct 20, 2019 at 10:13:49AM +0200, Magnus Karlsson wrote:
> On Sat, Oct 19, 2019 at 11:48 AM Alexei Starovoitov
> wrote:
> >
> > On Fri, Oct 18, 2019 at 11:33:40AM +0200, Magnus Karlsson wrote:
> > > +
> > > + #include
> > > + #incl
On Fri, Oct 18, 2019 at 11:33:40AM +0200, Magnus Karlsson wrote:
> +
> + #include
> + #include "bpf_helpers.h"
> +
> + #define MAX_SOCKS 16
> +
> + struct {
> +__uint(type, BPF_MAP_TYPE_XSKMAP);
> +__uint(max_entries, MAX_SOCKS);
> +__uint(key_size, sizeof(int));
>
On Thu, Oct 10, 2019 at 1:12 AM Magnus Karlsson
wrote:
>
> Added sections on all the bind flags, libbpf, all the setsockopts and
> all the getsockopts. Also updated the document to reflect the latest
> features and to correct some spelling errors.
>
> Signed-off-by: Magnus Karlsson
thanks for th
On Tue, Feb 19, 2019 at 01:14:11PM +0900, Masahiro Yamada wrote:
>
> I was able to compile it in-tree
> but it makes the incremental build extremely slow.
>
> (Here, the incremental build means
> "make" without changing any code after the full build.)
>
> Before this patch, "make -j8" took 11 se
On Mon, Feb 11, 2019 at 09:35:59AM -0500, Joel Fernandes (Google) wrote:
> Introduce in-kernel headers and other artifacts which are made available
> as an archive through proc (/proc/kheaders.txz file). This archive makes
> it possible to build kernel modules, run eBPF programs, and other
> tracin
On Fri, May 25, 2018 at 06:50:09PM +0200, Eugene Syromiatnikov wrote:
> On Thu, May 24, 2018 at 04:34:51PM -0700, Alexei Starovoitov wrote:
> > On Thu, May 24, 2018 at 09:41:08AM +0200, Jesper Dangaard Brouer wrote:
> > > On Wed, 23 May 2018 15:02:45 -0700
> > >
On Thu, May 24, 2018 at 09:41:08AM +0200, Jesper Dangaard Brouer wrote:
> On Wed, 23 May 2018 15:02:45 -0700
> Alexei Starovoitov wrote:
>
> > On Wed, May 23, 2018 at 02:18:19PM +0200, Eugene Syromiatnikov wrote:
> > > Some BPF sysctl knobs affect the loading of
On Wed, May 23, 2018 at 02:18:19PM +0200, Eugene Syromiatnikov wrote:
> Some BPF sysctl knobs affect the loading of BPF programs, and during
> system boot/init stages these sysctls are not yet configured.
> A concrete example is systemd, that has implemented loading of BPF
> programs.
>
> Thus, to
On Mon, May 21, 2018 at 02:29:30PM +0200, Eugene Syromiatnikov wrote:
> Hello.
>
> This patch set adds ability to set default values for
> kernel.unprivileged_bpf_disable, net.core.bpf_jit_harden,
> net.core.bpf_jit_kallsyms sysctl knobs as well as option to override
> them via a boot-time kernel
On Mon, May 14, 2018 at 10:57:25PM -0700, Y Song wrote:
> On Mon, May 14, 2018 at 6:42 AM, Jesper Dangaard Brouer
> wrote:
> > The kernel is moving files under Documentation to use the RST
> > (reStructuredText) format and Sphinx [1]. This patchset converts the
> > files under Documentation/bpf/
_buff. Cookie belongs to the socket and generated for the socket.
Would be good to explain that cookie is stable for the life of the socket.
For the rest:
Acked-by: Alexei Starovoitov
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el:
>
> - bpf_get_hash_recalc()
> - bpf_skb_change_tail()
> - bpf_skb_pull_data()
> - bpf_csum_update()
> - bpf_set_hash_invalid()
> - bpf_get_numa_node_id()
> - bpf_set_hash()
> - bpf_skb_adjust_room()
> - bpf_xdp_adjust_meta()
>
> Cc: Daniel Borkmann
> Signed-off-by: Q
; - bpf_skb_load_bytes(): Fix comment on current use cases for the helper.
>
> Cc: Daniel Borkmann
> Signed-off-by: Quentin Monnet
Acked-by: Alexei Starovoitov
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as a struct pt_reg. Remove
> the long yet incomplete example.
> - bpf_get_stackid(): Add a note about PERF_MAX_STACK_DEPTH being
> configurable.
>
> Cc: Alexei Starovoitov
> Signed-off-by: Quentin Monnet
looks great.
Acked-by: Alexei Starovoitov
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To unsubscribe from
g notice when the helper is used. Edit example.
> - bpf_tail_call(): Improve comment on stack inheritance.
> - bpf_clone_redirect(): Improve description of BPF_F_INGRESS flag.
>
> Cc: Alexei Starovoitov
> Signed-off-by: Quentin Monnet
Acked-by: Alexei Starovoitov
--
T
On Tue, Apr 10, 2018 at 03:41:53PM +0100, Quentin Monnet wrote:
> Add documentation for eBPF helper functions to bpf.h user header file.
> This documentation can be parsed with the Python script provided in
> another commit of the patch series, in order to provide a RST document
> that can later be
gt;
> - bpf_get_current_pid_tgid()
> - bpf_get_current_uid_gid()
> - bpf_get_current_comm()
> - bpf_skb_vlan_push()
> - bpf_skb_vlan_pop()
> - bpf_skb_get_tunnel_key()
> - bpf_skb_set_tunnel_key()
> - bpf_redirect()
> - bpf_perf_event_output()
> - bpf_get_stackid()
> - b
On Tue, Apr 10, 2018 at 03:41:50PM +0100, Quentin Monnet wrote:
> Remove previous "overview" of eBPF helpers from user bpf.h header.
> Replace it by a comment explaining how to process the new documentation
> (to come in following patches) with a Python script to produce RST, then
> man page docume
ei:
>
> - bpf_map_lookup_elem()
> - bpf_map_update_elem()
> - bpf_map_delete_elem()
> - bpf_probe_read()
> - bpf_ktime_get_ns()
> - bpf_trace_printk()
> - bpf_skb_store_bytes()
> - bpf_l3_csum_replace()
> - bpf_l4_csum_replace()
> - bpf_tail_call()
> - bpf_clone_redir
On Mon, Apr 09, 2018 at 02:25:26PM +0100, Quentin Monnet wrote:
>
> Anyway, I am fine with keeping just signatures, descriptions and return
> values for now. I will submit a new version with only those items.
Thank you.
Could you also split it into few patches?
include/uapi/linux/bpf.h | 2237
On Fri, Apr 06, 2018 at 12:11:22PM +0100, Quentin Monnet wrote:
> eBPF helper functions can be called from within eBPF programs to perform
> a variety of tasks that would be otherwise hard or impossible to do with
> eBPF itself. There is a growing number of such helper functions in the
> kernel, bu
On Tue, Sep 20, 2016 at 11:08:44AM +0200, Jesper Dangaard Brouer via
iovisor-dev wrote:
> Hi all,
>
> As promised, I've started documenting the XDP eXpress Data Path):
>
> [1]
> https://prototype-kernel.readthedocs.io/en/latest/networking/XDP/index.html
>
> IMHO the documentation have reached
On Thu, Aug 25, 2016 at 11:56:27AM -0700, Mahesh Bandewar (महेश बंडेवार) wrote:
> On Thu, Aug 25, 2016 at 11:04 AM, Alexei Starovoitov
> wrote:
> > On Thu, Aug 25, 2016 at 08:54:19AM -0700, Mahesh Bandewar (महेश बंडेवार)
> > wrote:
> >> On Wed, Aug 24, 2016 a
On Thu, Aug 25, 2016 at 08:54:19AM -0700, Mahesh Bandewar (महेश बंडेवार) wrote:
> On Wed, Aug 24, 2016 at 2:03 PM, Tejun Heo wrote:
> > Hello, Anoop.
> >
> > On Wed, Aug 10, 2016 at 05:53:13PM -0700, Anoop Naravaram wrote:
> >> This patchset introduces a cgroup controller for the networking subsys
On Mon, Aug 15, 2016 at 12:05:40PM -0700, Mahesh Bandewar wrote:
> On Fri, Aug 12, 2016 at 9:29 PM, Alexei Starovoitov
> wrote:
> [...]
> >> +static bool range_in_ranges(struct net_range *r, struct net_ranges *rs)
> >> +{
> >> + int ri;
> >> +
>
On Wed, Aug 10, 2016 at 05:53:16PM -0700, Anoop Naravaram wrote:
> udp port limit
> --
> This property controls the limit of udp ports that can be used by the
> processes in a cgroup. The controller manages udp statistics (usage,
> limit, etc) for each cgroup. Every cgroup also keeps tr
On Wed, Aug 10, 2016 at 05:53:18PM -0700, Anoop Naravaram wrote:
> Created a file scripts/cgroup/net_cgroup_test.py that tests the
> functionality of the net cgroup as described in previous commit logs.
>
> Signed-off-by: Anoop Naravaram
> ---
> scripts/cgroup/net_cgroup_test.py | 359
> +++
On Wed, Aug 10, 2016 at 05:53:15PM -0700, Anoop Naravaram wrote:
> bind port ranges
>
> This property controls which ports the processes in a cgroup are allowed
> to bind to. If a process in a cgroup tries to bind a socket to a port
> that is not within the range(s) permitted by th
On Mon, Mar 28, 2016 at 02:56:47PM -0700, Kees Cook wrote:
> From: Dave Anderson
>
> Fixes a copy-paste-o in the BPF opcode table: "neg" takes no arguments
> and thus has no addressing modes.
>
> Signed-off-by: Dave Anderson
> Signed-off-by: Kees Cook
Acked
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