search for: base_allocation_id

...uct connection *conn) extern int protocol_recv_request_send_reply (struct connection *conn) __attribute__((__nonnull__ (1))); +/* The context ID of base:allocation. As far as I can tell it doesn't + * matter what this is as long as nbdkit always returns the same + * number. + */ +#define base_allocation_id 1 + /* crypto.c */ #define root_tls_certificates_dir sysconfdir "/pki/" PACKAGE_NAME extern void crypto_init (bool tls_set_on_cli); diff --git a/server/protocol.h b/server/protocol.h index 4fe3c75..a7de2f0 100644 --- a/server/protocol.h +++ b/server/protocol.h @@ -112,6 +112,7 @@ exter...

...uct connection *conn) extern int protocol_recv_request_send_reply (struct connection *conn) __attribute__((__nonnull__ (1))); +/* The context ID of base:allocation. As far as I can tell it doesn't + * matter what this is as long as nbdkit always returns the same + * number. + */ +#define base_allocation_id 1 + /* crypto.c */ #define root_tls_certificates_dir sysconfdir "/pki/" PACKAGE_NAME extern void crypto_init (bool tls_set_on_cli); diff --git a/server/protocol.h b/server/protocol.h index 06b917e..a7de2f0 100644 --- a/server/protocol.h +++ b/server/protocol.h @@ -112,6 +112,7 @@ exter...

...MORE); if (r == -1) { nbdkit_error ("write reply: %s: %m", name_of_nbd_cmd (cmd)); return connection_set_status (conn, -1); @@ -581,7 +582,7 @@ send_structured_reply_block_status (struct connection *conn, /* Send the base:allocation context ID. */ context_id = htobe32 (base_allocation_id); - r = conn->send (conn, &context_id, sizeof context_id, 0); + r = conn->send (conn, &context_id, sizeof context_id, SEND_MORE); if (r == -1) { nbdkit_error ("write reply: %s: %m", name_of_nbd_cmd (cmd)); return connection_set_status (conn, -1); @@ -589,7 +59...

This time around, the numbers are indeed looking better than in v1; and I like the interface better. Eric Blake (2): server: Prefer send() over write() server: Group related transmission send()s server/internal.h | 7 +++- server/connections.c | 51 +++++++++++++++++++++++++--- server/crypto.c | 11 ++++--

...bool meta_context_base_allocation; + string_vector interns; char *exportname_from_set_meta_context; - char *exportname; + const char *exportname; int sockin, sockout; connection_recv_function recv; @@ -298,6 +300,9 @@ extern int protocol_recv_request_send_reply (void); */ #define base_allocation_id 1 +/* public.c */ +extern void free_interns (void); + /* crypto.c */ #define root_tls_certificates_dir sysconfdir "/pki/" PACKAGE_NAME extern void crypto_init (bool tls_set_on_cli); diff --git a/server/connections.c b/server/connections.c index 67a68469..d9f685c9 100644 --- a/server/c...

...bool meta_context_base_allocation; + string_vector interns; char *exportname_from_set_meta_context; - char *exportname; + const char *exportname; int sockin, sockout; connection_recv_function recv; @@ -298,6 +300,9 @@ extern int protocol_recv_request_send_reply (void); */ #define base_allocation_id 1 +/* public.c */ +extern void free_interns (void); + /* crypto.c */ #define root_tls_certificates_dir sysconfdir "/pki/" PACKAGE_NAME extern void crypto_init (bool tls_set_on_cli); diff --git a/server/connections.c b/server/connections.c index 67a68469..d9f685c9 100644 --- a/server/c...

I want to post this but mainly for discussion and early review. It's not safe for these patches to all go upstream yet (because not all filters have been checked/adjusted), but if any patches were to go upstream then probably 1 & 2 only are safe. File, VDDK, memory and data plugins all work, although I have only done minimal testing on them. The current tests, such as they are, all

Not sure what version we're up to, but this reimplements extents using the new simpler structure described in this thread: https://www.redhat.com/archives/libguestfs/2019-March/msg00077.html I also fixed most of the things that Eric pointed out in the previous review, although I need to go back over his replies and check I've got everything. This needs a bit more testing. However the

I'm not sure exactly which version we're up to, but let's say it's version 4. I'm a lot happier with this version: - all filters have been reviewed and changed where I think that's necessary - can_extents is properly defined and implemented now - NBD protocol is followed - I believe it addresses all previous review points where possible The "only" thing

This has already been pushed upstream. I am simply posting these here so we have a reference in the mailing list in case we find bugs later (as I'm sure we will - it's a complex patch series). Great thanks to Eric Blake for tireless review on this one. It also seems to have identified a few minor bugs in qemu along the way. Rich.

...data[opt_index], "base:allocation", 15) == 0) { if (send_newstyle_option_reply_meta_context - (conn, option, NBD_REP_META_CONTEXT, + (option, NBD_REP_META_CONTEXT, option == NBD_OPT_SET_META_CONTEXT ? base_allocation_id : 0, "base:allocation") == -1) @@ -686,7 +683,7 @@ negotiate_handshake_newstyle_options (struct connection *conn) opt_index += querylen; nr_queries--; } - if (send_newstyle_option_reply (conn, option, NBD_REP_ACK) == -1) +...

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.

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.

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);

This is a revision of my .default_export work, plus new work on .export_descriptions and a new exportname filter. I think it is now ready to check in. Things I'd still like in 1.22: - the file plugin should implement .list_exports (patch already posted, but it needs rebasing on this series) - the ext2 filter should override .list_exports when in exportname mode - the nbd plugin should be