kernel/include/linux/sunrpc/bc_xprt.h, branch linux-5.11.y

Replace HTTP links with HTTPS ones: NFS, SUNRPC, and LOCKD clients

2020-09-21T14:21:10Z

Rationale: Reduces attack surface on kernel devs opening the links for MITM as HTTPS traffic is much harder to manipulate. Deterministic algorithm: For each file: If not .svg: For each line: If doesn't contain `\bxmlns\b`: For each link, `\bhttp://[^# \t\r\n]*(?:\w|/)`: If both the HTTP and HTTPS versions return 200 OK and serve the same content: Replace HTTP with HTTPS. Signed-off-by: Alexander A. Klimov Signed-off-by: Anna Schumaker

SUNRPC: Destroy the back channel when we destroy the host transport

2019-10-30T16:04:35Z

When we're destroying the host transport mechanism, we should ensure that we do not leak memory by failing to release any back channel slots that might still exist. Reported-by: Neil Brown Reported-by: kbuild test robot Signed-off-by: Trond Myklebust Signed-off-by: Anna Schumaker

SUNRPC: Fix up backchannel slot table accounting

2019-07-18T05:12:59Z

Add a per-transport maximum limit in the socket case, and add helpers to allow the NFSv4 code to discover that limit. Signed-off-by: Trond Myklebust

nfs: fixed broken compilation in nfs_callback_up_net()

2018-12-31T16:25:16Z

Patch fixes compilation error in nfs_callback_up_net() serv->sv_bc_enabled is defined under enabled CONFIG_SUNRPC_BACKCHANNEL, however nfs_callback_up_net() can access it even if this config option was not set. Fixes: a289ce5311f4 (sunrpc: replace svc_serv->sv_bc_xprt by boolean flag) Reported-by: kbuild test robot Signed-off-by: Vasily Averin Signed-off-by: J. Bruce Fields

sunrpc: replace svc_serv->sv_bc_xprt by boolean flag

2018-12-28T02:01:41Z

svc_serv-> sv_bc_xprt is netns-unsafe and cannot be used as pointer. To prevent its misuse in future it is replaced by new boolean flag. Signed-off-by: Vasily Averin Signed-off-by: J. Bruce Fields

SUNRPC: Fix up the back channel transmit

2018-09-30T19:35:15Z

Fix up the back channel code to recognise that it has already been transmitted, so does not need to be called again. Also ensure that we set req->rq_task. Signed-off-by: Trond Myklebust

SUNRPC: Abstract backchannel operations

2015-11-02T18:45:15Z

xprt_{setup,destroy}_backchannel() won't be adequate for RPC/RMDA bi-direction. In particular, receive buffers have to be pre- registered and posted in order to receive incoming backchannel requests. Add a virtual function call to allow the insertion of appropriate backchannel setup and destruction methods for each transport. In addition, freeing a backchannel request is a little different for RPC/RDMA. Introduce an rpc_xprt_op to handle the difference. Signed-off-by: Chuck Lever Reviewed-by: Sagi Grimberg Tested-By: Devesh Sharma Signed-off-by: Anna Schumaker

SUNRPC: Clean up bc_send()

2015-06-02T17:30:35Z

Clean up: Merge bc_send() into bc_svc_process(). Note: even thought this touches svc.c, it is a client-side change. Signed-off-by: Chuck Lever Signed-off-by: Trond Myklebust

SUNRPC: RPC callbacks may be split across several TCP segments

2014-02-11T19:01:20Z

Since TCP is a stream protocol, our callback read code needs to take into account the fact that RPC callbacks are not always confined to a single TCP segment. This patch adds support for multiple TCP segments by ensuring that we only remove the rpc_rqst structure from the 'free backchannel requests' list once the data has been completely received. We rely on the fact that TCP data is ordered for the duration of the connection. Reported-by: shaobingqing Signed-off-by: Trond Myklebust

SUNRPC: Fix a few sparse warnings

2012-03-11T23:30:02Z

net/sunrpc/svcsock.c:412:22: warning: incorrect type in assignment (different address spaces) - svc_partial_recvfrom now takes a struct kvec, so the variable save_iovbase needs to be an ordinary (void *) Make a bunch of variables in net/sunrpc/xprtsock.c static Fix a couple of "warning: symbol 'foo' was not declared. Should it be static?" reports. Fix a couple of conflicting function declarations. Signed-off-by: Trond Myklebust