From 9f0fc191371843c4fc000a226b0a26b6c059aacd Mon Sep 17 00:00:00 2001 From: Daniel Baumann Date: Sat, 18 May 2024 19:40:19 +0200 Subject: Merging upstream version 6.7.7. Signed-off-by: Daniel Baumann --- fs/afs/addr_list.c | 133 +++++++++++++++++++++++++++-------------------------- 1 file changed, 69 insertions(+), 64 deletions(-) (limited to 'fs/afs/addr_list.c') diff --git a/fs/afs/addr_list.c b/fs/afs/addr_list.c index de1ae0bead..f4837c3b8a 100644 --- a/fs/afs/addr_list.c +++ b/fs/afs/addr_list.c @@ -13,26 +13,33 @@ #include "internal.h" #include "afs_fs.h" +static void afs_free_addrlist(struct rcu_head *rcu) +{ + struct afs_addr_list *alist = container_of(rcu, struct afs_addr_list, rcu); + unsigned int i; + + for (i = 0; i < alist->nr_addrs; i++) + rxrpc_kernel_put_peer(alist->addrs[i].peer); +} + /* * Release an address list. */ void afs_put_addrlist(struct afs_addr_list *alist) { if (alist && refcount_dec_and_test(&alist->usage)) - kfree_rcu(alist, rcu); + call_rcu(&alist->rcu, afs_free_addrlist); } /* * Allocate an address list. */ -struct afs_addr_list *afs_alloc_addrlist(unsigned int nr, - unsigned short service, - unsigned short port) +struct afs_addr_list *afs_alloc_addrlist(unsigned int nr, u16 service_id) { struct afs_addr_list *alist; unsigned int i; - _enter("%u,%u,%u", nr, service, port); + _enter("%u,%u", nr, service_id); if (nr > AFS_MAX_ADDRESSES) nr = AFS_MAX_ADDRESSES; @@ -44,16 +51,8 @@ struct afs_addr_list *afs_alloc_addrlist(unsigned int nr, refcount_set(&alist->usage, 1); alist->max_addrs = nr; - for (i = 0; i < nr; i++) { - struct sockaddr_rxrpc *srx = &alist->addrs[i]; - srx->srx_family = AF_RXRPC; - srx->srx_service = service; - srx->transport_type = SOCK_DGRAM; - srx->transport_len = sizeof(srx->transport.sin6); - srx->transport.sin6.sin6_family = AF_INET6; - srx->transport.sin6.sin6_port = htons(port); - } - + for (i = 0; i < nr; i++) + alist->addrs[i].service_id = service_id; return alist; } @@ -126,7 +125,7 @@ struct afs_vlserver_list *afs_parse_text_addrs(struct afs_net *net, if (!vllist->servers[0].server) goto error_vl; - alist = afs_alloc_addrlist(nr, service, AFS_VL_PORT); + alist = afs_alloc_addrlist(nr, service); if (!alist) goto error; @@ -197,9 +196,11 @@ struct afs_vlserver_list *afs_parse_text_addrs(struct afs_net *net, } if (family == AF_INET) - afs_merge_fs_addr4(alist, x[0], xport); + ret = afs_merge_fs_addr4(net, alist, x[0], xport); else - afs_merge_fs_addr6(alist, x, xport); + ret = afs_merge_fs_addr6(net, alist, x, xport); + if (ret < 0) + goto error; } while (p < end); @@ -271,25 +272,33 @@ struct afs_vlserver_list *afs_dns_query(struct afs_cell *cell, time64_t *_expiry /* * Merge an IPv4 entry into a fileserver address list. */ -void afs_merge_fs_addr4(struct afs_addr_list *alist, __be32 xdr, u16 port) +int afs_merge_fs_addr4(struct afs_net *net, struct afs_addr_list *alist, + __be32 xdr, u16 port) { - struct sockaddr_rxrpc *srx; - u32 addr = ntohl(xdr); + struct sockaddr_rxrpc srx; + struct rxrpc_peer *peer; int i; if (alist->nr_addrs >= alist->max_addrs) - return; + return 0; - for (i = 0; i < alist->nr_ipv4; i++) { - struct sockaddr_in *a = &alist->addrs[i].transport.sin; - u32 a_addr = ntohl(a->sin_addr.s_addr); - u16 a_port = ntohs(a->sin_port); + srx.srx_family = AF_RXRPC; + srx.transport_type = SOCK_DGRAM; + srx.transport_len = sizeof(srx.transport.sin); + srx.transport.sin.sin_family = AF_INET; + srx.transport.sin.sin_port = htons(port); + srx.transport.sin.sin_addr.s_addr = xdr; - if (addr == a_addr && port == a_port) - return; - if (addr == a_addr && port < a_port) - break; - if (addr < a_addr) + peer = rxrpc_kernel_lookup_peer(net->socket, &srx, GFP_KERNEL); + if (!peer) + return -ENOMEM; + + for (i = 0; i < alist->nr_ipv4; i++) { + if (peer == alist->addrs[i].peer) { + rxrpc_kernel_put_peer(peer); + return 0; + } + if (peer <= alist->addrs[i].peer) break; } @@ -298,38 +307,42 @@ void afs_merge_fs_addr4(struct afs_addr_list *alist, __be32 xdr, u16 port) alist->addrs + i, sizeof(alist->addrs[0]) * (alist->nr_addrs - i)); - srx = &alist->addrs[i]; - srx->srx_family = AF_RXRPC; - srx->transport_type = SOCK_DGRAM; - srx->transport_len = sizeof(srx->transport.sin); - srx->transport.sin.sin_family = AF_INET; - srx->transport.sin.sin_port = htons(port); - srx->transport.sin.sin_addr.s_addr = xdr; + alist->addrs[i].peer = peer; alist->nr_ipv4++; alist->nr_addrs++; + return 0; } /* * Merge an IPv6 entry into a fileserver address list. */ -void afs_merge_fs_addr6(struct afs_addr_list *alist, __be32 *xdr, u16 port) +int afs_merge_fs_addr6(struct afs_net *net, struct afs_addr_list *alist, + __be32 *xdr, u16 port) { - struct sockaddr_rxrpc *srx; - int i, diff; + struct sockaddr_rxrpc srx; + struct rxrpc_peer *peer; + int i; if (alist->nr_addrs >= alist->max_addrs) - return; + return 0; - for (i = alist->nr_ipv4; i < alist->nr_addrs; i++) { - struct sockaddr_in6 *a = &alist->addrs[i].transport.sin6; - u16 a_port = ntohs(a->sin6_port); + srx.srx_family = AF_RXRPC; + srx.transport_type = SOCK_DGRAM; + srx.transport_len = sizeof(srx.transport.sin6); + srx.transport.sin6.sin6_family = AF_INET6; + srx.transport.sin6.sin6_port = htons(port); + memcpy(&srx.transport.sin6.sin6_addr, xdr, 16); - diff = memcmp(xdr, &a->sin6_addr, 16); - if (diff == 0 && port == a_port) - return; - if (diff == 0 && port < a_port) - break; - if (diff < 0) + peer = rxrpc_kernel_lookup_peer(net->socket, &srx, GFP_KERNEL); + if (!peer) + return -ENOMEM; + + for (i = alist->nr_ipv4; i < alist->nr_addrs; i++) { + if (peer == alist->addrs[i].peer) { + rxrpc_kernel_put_peer(peer); + return 0; + } + if (peer <= alist->addrs[i].peer) break; } @@ -337,15 +350,9 @@ void afs_merge_fs_addr6(struct afs_addr_list *alist, __be32 *xdr, u16 port) memmove(alist->addrs + i + 1, alist->addrs + i, sizeof(alist->addrs[0]) * (alist->nr_addrs - i)); - - srx = &alist->addrs[i]; - srx->srx_family = AF_RXRPC; - srx->transport_type = SOCK_DGRAM; - srx->transport_len = sizeof(srx->transport.sin6); - srx->transport.sin6.sin6_family = AF_INET6; - srx->transport.sin6.sin6_port = htons(port); - memcpy(&srx->transport.sin6.sin6_addr, xdr, 16); + alist->addrs[i].peer = peer; alist->nr_addrs++; + return 0; } /* @@ -379,26 +386,24 @@ bool afs_iterate_addresses(struct afs_addr_cursor *ac) selected: ac->index = index; set_bit(index, &ac->tried); - ac->responded = false; + ac->call_responded = false; return true; } /* * Release an address list cursor. */ -int afs_end_cursor(struct afs_addr_cursor *ac) +void afs_end_cursor(struct afs_addr_cursor *ac) { struct afs_addr_list *alist; alist = ac->alist; if (alist) { - if (ac->responded && + if (ac->call_responded && ac->index != alist->preferred && test_bit(ac->alist->preferred, &ac->tried)) WRITE_ONCE(alist->preferred, ac->index); afs_put_addrlist(alist); ac->alist = NULL; } - - return ac->error; } -- cgit v1.2.3