search for: nr_options

Displaying 20 results from an estimated 23 matches for "nr_options".

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2020 Sep 29
1
[nbdkit PATCH] server: Adjust limit on max NBD_OPT_* from client
...uot;protostrings.h" -/* Maximum number of client options we allow before giving up. */ +/* Initial bound of client options we allow before giving up. + * However, a client that issues NBD_OPT_LIST is permitted to follow + * up with another round of options per export listed. + */ #define MAX_NR_OPTIONS 32 /* Receive newstyle options. */ @@ -78,12 +81,13 @@ send_newstyle_option_reply (uint32_t option, uint32_t reply) /* Reply to NBD_OPT_LIST with the plugin's list of export names. */ static int -send_newstyle_option_reply_exportnames (uint32_t option) +send_newstyle_option_reply_exportna...
2018 Nov 29
2
[nbdkit PATCH] connections: Implement NBD_OPT_INFO
...index 1b40e46..410a893 100644 --- a/src/connections.c +++ b/src/connections.c @@ -636,6 +636,7 @@ _negotiate_handshake_newstyle_options (struct connection *conn) uint32_t optlen; char data[MAX_OPTION_LENGTH+1]; struct new_handshake_finish handshake_finish; + const char *optname; for (nr_options = 0; nr_options < MAX_NR_OPTIONS; ++nr_options) { if (conn->recv (conn, &new_option, sizeof new_option) == -1) { @@ -774,14 +775,16 @@ _negotiate_handshake_newstyle_options (struct connection *conn) } break; + case NBD_OPT_INFO: case NBD_OPT_GO: + optname...
2018 Dec 21
1
[nbdkit PATCH] connections: Don't use uninit memory on early client EOF
...} + return r; +} + /* Sub-function of _negotiate_handshake_newstyle_options below. It * must be called on all non-error paths out of the options for-loop * in that function. @@ -639,10 +664,9 @@ _negotiate_handshake_newstyle_options (struct connection *conn) const char *optname; for (nr_options = 0; nr_options < MAX_NR_OPTIONS; ++nr_options) { - if (conn->recv (conn, &new_option, sizeof new_option) == -1) { - nbdkit_error ("read: %m"); + if (conn_recv_full (conn, &new_option, sizeof new_option, + "read: %m") == -1)...
2016 Jan 11
1
[PATCH] Add support for newstyle NBD protocol (RHBZ#1297100).
Experimental and only very lightly tested so far. Rich.
2019 Aug 30
0
[nbdkit PATCH 5/9] server: Cache per-connection size
...rotocol_compute_eflags (conn, &conn->eflags) < 0) return -1; @@ -233,6 +233,7 @@ negotiate_handshake_newstyle_options (struct connection *conn) char data[MAX_OPTION_LENGTH+1]; struct new_handshake_finish handshake_finish; const char *optname; + uint64_t exportsize; for (nr_options = 0; nr_options < MAX_NR_OPTIONS; ++nr_options) { if (conn_recv_full (conn, &new_option, sizeof new_option, @@ -281,11 +282,11 @@ negotiate_handshake_newstyle_options (struct connection *conn) name_of_nbd_opt (option), data); /* We have to finish the handshake by s...
2018 Aug 06
0
[PATCH nbdkit v2] protocol: Implement NBD_OPT_GO.
...+ static int _negotiate_handshake_newstyle_options (struct connection *conn) { @@ -581,6 +632,7 @@ _negotiate_handshake_newstyle_options (struct connection *conn) uint32_t option; uint32_t optlen; char data[MAX_OPTION_LENGTH+1]; + struct new_handshake_finish handshake_finish; for (nr_options = 0; nr_options < MAX_NR_OPTIONS; ++nr_options) { if (conn->recv (conn, &new_option, sizeof new_option) == -1) { @@ -625,7 +677,8 @@ _negotiate_handshake_newstyle_options (struct connection *conn) } /* Apart from printing it, ignore the export name. */ data[optle...
2018 Aug 04
3
[PATCH nbdkit] protocol: Implement NBD_OPT_GO.
This is only lightly tested (against just qemu NBD client), and the code might be structured a little better as the _negotiate_handshake_newstyle_options function has now grown to be huge. Anyway works for me. Rich.
2017 Apr 27
4
[PATCH 0/4] common: Add a simple mini-library for handling qemu command and config files.
Currently we have an OCaml library for generating the qemu command line (used only by ‘virt-v2v -o qemu’). However we also generate a qemu command line in ‘lib/launch-direct.c’, and we might in future need to generate a ‘-readconfig’-compatible configuration file if we want to go beyond 10,000 drives for scalability testing. Therefore this patch series reimplements the qemu command line code as
2019 Mar 18
0
[PATCH nbdkit 2/2] server: Split out NBD protocol code from connections code.
....h> #include "internal.h" -#include "byte-swapping.h" -#include "protocol.h" - -/* Maximum read or write request that we will handle. */ -#define MAX_REQUEST_SIZE (64 * 1024 * 1024) - -/* Maximum number of client options we allow before giving up. */ -#define MAX_NR_OPTIONS 32 - -/* Maximum length of any option data (bytes). */ -#define MAX_OPTION_LENGTH 4096 /* Default number of parallel requests. */ #define DEFAULT_PARALLEL_REQUESTS 16 @@ -65,8 +48,6 @@ static struct connection *new_connection (int sockin, int sockout,...
2018 Aug 06
3
[PATCH nbdkit v2] protocol: Implement NBD_OPT_GO.
There's no substantial difference over v1, I simply fixed a few whitespace issues, moved one struct around and tidied up the comments. Rich.
2019 Aug 19
2
[nbdkit PATCH] noextents: Add hook to cripple SR advertisement
...644 --- a/server/protocol-handshake-newstyle.c +++ b/server/protocol-handshake-newstyle.c @@ -233,6 +233,7 @@ negotiate_handshake_newstyle_options (struct connection *conn) char data[MAX_OPTION_LENGTH+1]; struct new_handshake_finish handshake_finish; const char *optname; + int r; for (nr_options = 0; nr_options < MAX_NR_OPTIONS; ++nr_options) { if (conn_recv_full (conn, &new_option, sizeof new_option, @@ -481,6 +482,20 @@ negotiate_handshake_newstyle_options (struct connection *conn) debug ("newstyle negotiation: %s: client requested structured replies",...
2019 Mar 18
3
[PATCH nbdkit 0/2] server: Split out NBD protocol code from connections code.
These are a couple of patches in preparation for the Block Status implementation. While the patches (especially the second one) are very large they are really just elementary code motion. Rich.
2020 Aug 25
0
[nbdkit PATCH 1/5] api: Add .default_export
...ply (option, NBD_REP_ERR_TOO_BIG); if (backend_list_exports (top, read_only, false, exps) == -1) @@ -301,6 +301,7 @@ negotiate_handshake_newstyle_options (void) struct nbd_export_name_option_reply handshake_finish; const char *optname; uint64_t exportsize; + struct backend *b; for (nr_options = 0; nr_options < MAX_NR_OPTIONS; ++nr_options) { CLEANUP_FREE char *data = NULL; @@ -445,6 +446,12 @@ negotiate_handshake_newstyle_options (void) return -1; conn->using_tls = true; debug ("using TLS on this connection"); + /* Wipe out any ca...
2018 Aug 06
2
Re: [PATCH nbdkit v2] protocol: Implement NBD_OPT_GO.
Actually I was wrong, there *is* one substantive change over v1, which is this: > + /* The client is buggy. The last option must be NBD_OPT_GO or > + * NBD_OPT_EXPORT_NAME. > + */ > + else { > + nbdkit_error ("client options list didn't finish with NBD_OPT_GO " > + "or NBD_OPT_EXPORT_NAME"); > + return -1; > + } > + >
2019 Sep 24
0
[PATCH nbdkit 3/4] common/protocol: Update nbd-protocol.h so it matches libnbd’s copy.
...negotiation: %s: replying with %s id %d", @@ -213,13 +213,13 @@ finish_newstyle_options (struct connection *conn, uint64_t *exportsize) static int negotiate_handshake_newstyle_options (struct connection *conn) { - struct new_option new_option; + struct nbd_new_option new_option; size_t nr_options; uint64_t version; uint32_t option; uint32_t optlen; char data[MAX_OPTION_LENGTH+1]; - struct new_handshake_finish handshake_finish; + struct nbd_new_handshake_finish handshake_finish; const char *optname; uint64_t exportsize; @@ -229,10 +229,10 @@ negotiate_handshake_newstyle...
2020 Aug 25
9
[nbdkit PATCH 0/5] Implement .default_export, nbdkit_string_intern
More patches on the way for improving .list_exports signature and adding .export_description, but this is the promised code showing why nbdkit_string_intern is useful. Patch 4 is somewhat RFC: we could either add new API to take the boilerplate from: foo_config(const char *key, const char *value) { if (strcmp (key, "file") == 0) { CLEANUP_FREE char *tmp = nbdkit_realpath (value);
2020 Feb 11
0
[PATCH nbdkit 3/3] server: Remove explicit connection parameter, use TLS instead.
...,8 +254,9 @@ check_export_name (struct connection *conn, uint32_t option, char *buf, } static int -negotiate_handshake_newstyle_options (struct connection *conn) +negotiate_handshake_newstyle_options (void) { + struct connection *conn = GET_CONN; struct nbd_new_option new_option; size_t nr_options; uint64_t version; @@ -268,7 +269,7 @@ negotiate_handshake_newstyle_options (struct connection *conn) for (nr_options = 0; nr_options < MAX_NR_OPTIONS; ++nr_options) { CLEANUP_FREE char *data = NULL; - if (conn_recv_full (conn, &new_option, sizeof new_option, + if (conn_re...
2020 Feb 11
4
[PATCH nbdkit v2 0/3] server: Remove explicit connection parameter.
v1 was here: https://www.redhat.com/archives/libguestfs/2020-February/msg00081.html v2 replaces struct connection *conn = GET_CONN; with GET_CONN; which sets conn implicitly and asserts that it is non-NULL. If we actually want to test if conn is non-NULL or behave differently, then you must use threadlocal_get_conn() instead, and some existing uses do that. Rich.
2020 Feb 11
5
[PATCH nbdkit 0/3] server: Remove explicit connection parameter.
The third patch is a large but mechanical change which gets rid of passing around struct connection * entirely within the server, preferring instead to reference the connection through thread-local storage. I hope this is a gateway to simplifying other parts of the code. Rich.
2019 Aug 30
15
[nbdkit PATCH 0/9] can_FOO caching, more filter validation
It's easy to use the sh script to demonstrate that nbdkit is inefficiently calling into .get_size, .can_fua, and friends more than necessary. We've also commented on the list in the past that it would be nice to ensure that when filters call into next_ops, they are not violating constraints (as we've have to fix several bugs in the past where we did not have such checking to protect