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Merge branch 'for-linus' of git://linux-nfs.org/~bfields/linux

Browse source 
* 'for-linus' of git://linux-nfs.org/~bfields/linux: (52 commits)
  knfsd: clear both setuid and setgid whenever a chown is done
  knfsd: get rid of imode variable in nfsd_setattr
  SUNRPC: Use unsigned loop and array index in svc_init_buffer()
  SUNRPC: Use unsigned index when looping over arrays
  SUNRPC: Update RPC server's TCP record marker decoder
  SUNRPC: RPC server still uses 2.4 method for disabling TCP Nagle
  NLM: don't let lockd exit on unexpected svc_recv errors (try #2)
  NFS: don't let nfs_callback_svc exit on unexpected svc_recv errors (try #2)
  Use a zero sized array for raw field in struct fid
  nfsd: use static memory for callback program and stats
  SUNRPC: remove svc_create_thread()
  nfsd: fix comment
  lockd: Fix stale nlmsvc_unlink_block comment
  NFSD: Strip __KERNEL__ testing from unexported header files.
  sunrpc: make token header values less confusing
  gss_krb5: consistently use unsigned for seqnum
  NFSD: Remove NFSv4 dependency on NFSv3
  SUNRPC: Remove PROC_FS dependency
  NFSD: Use "depends on" for PROC_FS dependency
  nfsd: move most of fh_verify to separate function
  ...
This commit is contained in:
Linus Torvalds 2008-04-24 11:45:00 -07:00
commit 10c993a6b5
43 changed files with 879 additions and 517 deletions
Download patch file Download diff file Expand all files Collapse all files

4
net/sunrpc/auth_gss/gss_generic_token.c
View file

@ -148,7 +148,7 @@ int
g_token_size(struct xdr_netobj *mech, unsigned int body_size)
{
/* set body_size to sequence contents size */
body_size += 4 + (int) mech->len; /* NEED overflow check */
body_size += 2 + (int) mech->len; /* NEED overflow check */
return(1 + der_length_size(body_size) + body_size);
}
@ -161,7 +161,7 @@ void
g_make_token_header(struct xdr_netobj *mech, int body_size, unsigned char **buf)
{
*(*buf)++ = 0x60;
der_write_length(buf, 4 + mech->len + body_size);
der_write_length(buf, 2 + mech->len + body_size);
*(*buf)++ = 0x06;
*(*buf)++ = (unsigned char) mech->len;
TWRITE_STR(*buf, mech->data, ((int) mech->len));

6
net/sunrpc/auth_gss/gss_krb5_crypto.c
View file

@ -66,8 +66,8 @@ krb5_encrypt(
goto out;
if (crypto_blkcipher_ivsize(tfm) > 16) {
dprintk("RPC: gss_k5encrypt: tfm iv size to large %d\n",
crypto_blkcipher_ivsize(tfm));
dprintk("RPC: gss_k5encrypt: tfm iv size too large %d\n",
crypto_blkcipher_ivsize(tfm));
goto out;
}
@ -102,7 +102,7 @@ krb5_decrypt(
goto out;
if (crypto_blkcipher_ivsize(tfm) > 16) {
dprintk("RPC: gss_k5decrypt: tfm iv size to large %d\n",
dprintk("RPC: gss_k5decrypt: tfm iv size too large %d\n",
crypto_blkcipher_ivsize(tfm));
goto out;
}

9
net/sunrpc/auth_gss/gss_krb5_seal.c
View file

@ -87,10 +87,10 @@ gss_get_mic_kerberos(struct gss_ctx *gss_ctx, struct xdr_buf *text,
now = get_seconds();
token->len = g_token_size(&ctx->mech_used, 22);
token->len = g_token_size(&ctx->mech_used, 24);
ptr = token->data;
g_make_token_header(&ctx->mech_used, 22, &ptr);
g_make_token_header(&ctx->mech_used, 24, &ptr);
*ptr++ = (unsigned char) ((KG_TOK_MIC_MSG>>8)&0xff);
*ptr++ = (unsigned char) (KG_TOK_MIC_MSG&0xff);
@ -109,15 +109,14 @@ gss_get_mic_kerberos(struct gss_ctx *gss_ctx, struct xdr_buf *text,
md5cksum.data, md5cksum.len))
return GSS_S_FAILURE;
memcpy(krb5_hdr + 16, md5cksum.data + md5cksum.len - KRB5_CKSUM_LENGTH,
KRB5_CKSUM_LENGTH);
memcpy(krb5_hdr + 16, md5cksum.data + md5cksum.len - 8, 8);
spin_lock(&krb5_seq_lock);
seq_send = ctx->seq_send++;
spin_unlock(&krb5_seq_lock);
if (krb5_make_seq_num(ctx->seq, ctx->initiate ? 0 : 0xff,
ctx->seq_send, krb5_hdr + 16, krb5_hdr + 8))
seq_send, krb5_hdr + 16, krb5_hdr + 8))
return GSS_S_FAILURE;
return (ctx->endtime < now) ? GSS_S_CONTEXT_EXPIRED : GSS_S_COMPLETE;

4
net/sunrpc/auth_gss/gss_krb5_seqnum.c
View file

@ -43,7 +43,7 @@
s32
krb5_make_seq_num(struct crypto_blkcipher *key,
int direction,
s32 seqnum,
u32 seqnum,
unsigned char *cksum, unsigned char *buf)
{
unsigned char plain[8];
@ -65,7 +65,7 @@ s32
krb5_get_seq_num(struct crypto_blkcipher *key,
unsigned char *cksum,
unsigned char *buf,
int *direction, s32 * seqnum)
int *direction, u32 *seqnum)
{
s32 code;
unsigned char plain[8];

2
net/sunrpc/auth_gss/gss_krb5_unseal.c
View file

@ -82,7 +82,7 @@ gss_verify_mic_kerberos(struct gss_ctx *gss_ctx,
struct xdr_netobj md5cksum = {.len = 0, .data = cksumdata};
s32 now;
int direction;
s32 seqnum;
u32 seqnum;
unsigned char *ptr = (unsigned char *)read_token->data;
int bodysize;

8
net/sunrpc/auth_gss/gss_krb5_wrap.c
View file

@ -137,7 +137,7 @@ gss_wrap_kerberos(struct gss_ctx *ctx, int offset,
BUG_ON((buf->len - offset) % blocksize);
plainlen = blocksize + buf->len - offset;
headlen = g_token_size(&kctx->mech_used, 22 + plainlen) -
headlen = g_token_size(&kctx->mech_used, 24 + plainlen) -
(buf->len - offset);
ptr = buf->head[0].iov_base + offset;
@ -149,7 +149,7 @@ gss_wrap_kerberos(struct gss_ctx *ctx, int offset,
buf->len += headlen;
BUG_ON((buf->len - offset - headlen) % blocksize);
g_make_token_header(&kctx->mech_used, 22 + plainlen, &ptr);
g_make_token_header(&kctx->mech_used, 24 + plainlen, &ptr);
*ptr++ = (unsigned char) ((KG_TOK_WRAP_MSG>>8)&0xff);
@ -176,9 +176,7 @@ gss_wrap_kerberos(struct gss_ctx *ctx, int offset,
if (krb5_encrypt(kctx->seq, NULL, md5cksum.data,
md5cksum.data, md5cksum.len))
return GSS_S_FAILURE;
memcpy(krb5_hdr + 16,
md5cksum.data + md5cksum.len - KRB5_CKSUM_LENGTH,
KRB5_CKSUM_LENGTH);
memcpy(krb5_hdr + 16, md5cksum.data + md5cksum.len - 8, 8);
spin_lock(&krb5_seq_lock);
seq_send = kctx->seq_send++;

4
net/sunrpc/auth_gss/gss_spkm3_seal.c
View file

@ -107,10 +107,10 @@ spkm3_make_token(struct spkm3_ctx *ctx,
tokenlen = 10 + ctxelen + 1 + md5elen + 1;
/* Create token header using generic routines */
token->len = g_token_size(&ctx->mech_used, tokenlen);
token->len = g_token_size(&ctx->mech_used, tokenlen + 2);
ptr = token->data;
g_make_token_header(&ctx->mech_used, tokenlen, &ptr);
g_make_token_header(&ctx->mech_used, tokenlen + 2, &ptr);
spkm3_make_mic_token(&ptr, tokenlen, &mic_hdr, &md5cksum, md5elen, md5zbit);
} else if (toktype == SPKM_WRAP_TOK) { /* Not Supported */

9
net/sunrpc/auth_gss/svcauth_gss.c
View file

@ -1146,7 +1146,7 @@ svcauth_gss_accept(struct svc_rqst *rqstp, __be32 *authp)
case RPC_GSS_SVC_INTEGRITY:
if (unwrap_integ_data(&rqstp->rq_arg,
gc->gc_seq, rsci->mechctx))
goto auth_err;
goto garbage_args;
/* placeholders for length and seq. number: */
svc_putnl(resv, 0);
svc_putnl(resv, 0);
@ -1154,7 +1154,7 @@ svcauth_gss_accept(struct svc_rqst *rqstp, __be32 *authp)
case RPC_GSS_SVC_PRIVACY:
if (unwrap_priv_data(rqstp, &rqstp->rq_arg,
gc->gc_seq, rsci->mechctx))
goto auth_err;
goto garbage_args;
/* placeholders for length and seq. number: */
svc_putnl(resv, 0);
svc_putnl(resv, 0);
@ -1169,6 +1169,11 @@ svcauth_gss_accept(struct svc_rqst *rqstp, __be32 *authp)
ret = SVC_OK;
goto out;
}
garbage_args:
/* Restore write pointer to its original value: */
xdr_ressize_check(rqstp, reject_stat);
ret = SVC_GARBAGE;
goto out;
auth_err:
/* Restore write pointer to its original value: */
xdr_ressize_check(rqstp, reject_stat);

1
net/sunrpc/cache.c
View file

@ -571,7 +571,6 @@ static int cache_defer_req(struct cache_req *req, struct cache_head *item)
return -ETIMEDOUT;
dreq->item = item;
dreq->recv_time = get_seconds();
spin_lock(&cache_defer_lock);

25
net/sunrpc/svc.c
View file

@ -510,8 +510,7 @@ EXPORT_SYMBOL(svc_destroy);
static int
svc_init_buffer(struct svc_rqst *rqstp, unsigned int size)
{
int pages;
int arghi;
unsigned int pages, arghi;
pages = size / PAGE_SIZE + 1; /* extra page as we hold both request and reply.
* We assume one is at most one page
@ -525,7 +524,7 @@ svc_init_buffer(struct svc_rqst *rqstp, unsigned int size)
rqstp->rq_pages[arghi++] = p;
pages--;
}
return ! pages;
return pages == 0;
}
/*
@ -534,8 +533,9 @@ svc_init_buffer(struct svc_rqst *rqstp, unsigned int size)
static void
svc_release_buffer(struct svc_rqst *rqstp)
{
int i;
for (i=0; i<ARRAY_SIZE(rqstp->rq_pages); i++)
unsigned int i;
for (i = 0; i < ARRAY_SIZE(rqstp->rq_pages); i++)
if (rqstp->rq_pages[i])
put_page(rqstp->rq_pages[i]);
}
@ -590,7 +590,7 @@ __svc_create_thread(svc_thread_fn func, struct svc_serv *serv,
struct svc_rqst *rqstp;
int error = -ENOMEM;
int have_oldmask = 0;
cpumask_t oldmask;
cpumask_t uninitialized_var(oldmask);
rqstp = svc_prepare_thread(serv, pool);
if (IS_ERR(rqstp)) {
@ -618,16 +618,6 @@ out_thread:
goto out;
}
/*
* Create a thread in the default pool. Caller must hold BKL.
*/
int
svc_create_thread(svc_thread_fn func, struct svc_serv *serv)
{
return __svc_create_thread(func, serv, &serv->sv_pools[0]);
}
EXPORT_SYMBOL(svc_create_thread);
/*
* Choose a pool in which to create a new thread, for svc_set_num_threads
*/
@ -921,8 +911,7 @@ svc_process(struct svc_rqst *rqstp)
case SVC_OK:
break;
case SVC_GARBAGE:
rpc_stat = rpc_garbage_args;
goto err_bad;
goto err_garbage;
case SVC_SYSERR:
rpc_stat = rpc_system_err;
goto err_bad;

30
net/sunrpc/svc_xprt.c
View file

@ -18,6 +18,7 @@
#include <linux/skbuff.h>
#include <linux/file.h>
#include <linux/freezer.h>
#include <linux/kthread.h>
#include <net/sock.h>
#include <net/checksum.h>
#include <net/ip.h>
@ -586,8 +587,12 @@ int svc_recv(struct svc_rqst *rqstp, long timeout)
while (rqstp->rq_pages[i] == NULL) {
struct page *p = alloc_page(GFP_KERNEL);
if (!p) {
int j = msecs_to_jiffies(500);
schedule_timeout_uninterruptible(j);
set_current_state(TASK_INTERRUPTIBLE);
if (signalled() || kthread_should_stop()) {
set_current_state(TASK_RUNNING);
return -EINTR;
}
schedule_timeout(msecs_to_jiffies(500));
}
rqstp->rq_pages[i] = p;
}
@ -607,7 +612,7 @@ int svc_recv(struct svc_rqst *rqstp, long timeout)
try_to_freeze();
cond_resched();
if (signalled())
if (signalled() || kthread_should_stop())
return -EINTR;
spin_lock_bh(&pool->sp_lock);
@ -626,6 +631,20 @@ int svc_recv(struct svc_rqst *rqstp, long timeout)
* to bring down the daemons ...
*/
set_current_state(TASK_INTERRUPTIBLE);
/*
* checking kthread_should_stop() here allows us to avoid
* locking and signalling when stopping kthreads that call
* svc_recv. If the thread has already been woken up, then
* we can exit here without sleeping. If not, then it
* it'll be woken up quickly during the schedule_timeout
*/
if (kthread_should_stop()) {
set_current_state(TASK_RUNNING);
spin_unlock_bh(&pool->sp_lock);
return -EINTR;
}
add_wait_queue(&rqstp->rq_wait, &wait);
spin_unlock_bh(&pool->sp_lock);
@ -641,7 +660,10 @@ int svc_recv(struct svc_rqst *rqstp, long timeout)
svc_thread_dequeue(pool, rqstp);
spin_unlock_bh(&pool->sp_lock);
dprintk("svc: server %p, no data yet\n", rqstp);
return signalled()? -EINTR : -EAGAIN;
if (signalled() || kthread_should_stop())
return -EINTR;
else
return -EAGAIN;
}
}
spin_unlock_bh(&pool->sp_lock);

118
net/sunrpc/svcauth_unix.c
View file

@ -11,7 +11,8 @@
#include <linux/hash.h>
#include <linux/string.h>
#include <net/sock.h>
#include <net/ipv6.h>
#include <linux/kernel.h>
#define RPCDBG_FACILITY RPCDBG_AUTH
@ -85,7 +86,7 @@ static void svcauth_unix_domain_release(struct auth_domain *dom)
struct ip_map {
struct cache_head h;
char m_class[8]; /* e.g. "nfsd" */
struct in_addr m_addr;
struct in6_addr m_addr;
struct unix_domain *m_client;
int m_add_change;
};
@ -113,12 +114,19 @@ static inline int hash_ip(__be32 ip)
return (hash ^ (hash>>8)) & 0xff;
}
#endif
static inline int hash_ip6(struct in6_addr ip)
{
return (hash_ip(ip.s6_addr32[0]) ^
hash_ip(ip.s6_addr32[1]) ^
hash_ip(ip.s6_addr32[2]) ^
hash_ip(ip.s6_addr32[3]));
}
static int ip_map_match(struct cache_head *corig, struct cache_head *cnew)
{
struct ip_map *orig = container_of(corig, struct ip_map, h);
struct ip_map *new = container_of(cnew, struct ip_map, h);
return strcmp(orig->m_class, new->m_class) == 0
&& orig->m_addr.s_addr == new->m_addr.s_addr;
&& ipv6_addr_equal(&orig->m_addr, &new->m_addr);
}
static void ip_map_init(struct cache_head *cnew, struct cache_head *citem)
{
@ -126,7 +134,7 @@ static void ip_map_init(struct cache_head *cnew, struct cache_head *citem)
struct ip_map *item = container_of(citem, struct ip_map, h);
strcpy(new->m_class, item->m_class);
new->m_addr.s_addr = item->m_addr.s_addr;
ipv6_addr_copy(&new->m_addr, &item->m_addr);
}
static void update(struct cache_head *cnew, struct cache_head *citem)
{
@ -150,22 +158,24 @@ static void ip_map_request(struct cache_detail *cd,
struct cache_head *h,
char **bpp, int *blen)
{
char text_addr[20];
char text_addr[40];
struct ip_map *im = container_of(h, struct ip_map, h);
__be32 addr = im->m_addr.s_addr;
snprintf(text_addr, 20, "%u.%u.%u.%u",
ntohl(addr) >> 24 & 0xff,
ntohl(addr) >> 16 & 0xff,
ntohl(addr) >> 8 & 0xff,
ntohl(addr) >> 0 & 0xff);
if (ipv6_addr_v4mapped(&(im->m_addr))) {
snprintf(text_addr, 20, NIPQUAD_FMT,
ntohl(im->m_addr.s6_addr32[3]) >> 24 & 0xff,
ntohl(im->m_addr.s6_addr32[3]) >> 16 & 0xff,
ntohl(im->m_addr.s6_addr32[3]) >> 8 & 0xff,
ntohl(im->m_addr.s6_addr32[3]) >> 0 & 0xff);
} else {
snprintf(text_addr, 40, NIP6_FMT, NIP6(im->m_addr));
}
qword_add(bpp, blen, im->m_class);
qword_add(bpp, blen, text_addr);
(*bpp)[-1] = '\n';
}
static struct ip_map *ip_map_lookup(char *class, struct in_addr addr);
static struct ip_map *ip_map_lookup(char *class, struct in6_addr *addr);
static int ip_map_update(struct ip_map *ipm, struct unix_domain *udom, time_t expiry);
static int ip_map_parse(struct cache_detail *cd,
@ -176,10 +186,10 @@ static int ip_map_parse(struct cache_detail *cd,
* for scratch: */
char *buf = mesg;
int len;
int b1,b2,b3,b4;
int b1, b2, b3, b4, b5, b6, b7, b8;
char c;
char class[8];
struct in_addr addr;
struct in6_addr addr;
int err;
struct ip_map *ipmp;
@ -198,7 +208,23 @@ static int ip_map_parse(struct cache_detail *cd,
len = qword_get(&mesg, buf, mlen);
if (len <= 0) return -EINVAL;
if (sscanf(buf, "%u.%u.%u.%u%c", &b1, &b2, &b3, &b4, &c) != 4)
if (sscanf(buf, NIPQUAD_FMT "%c", &b1, &b2, &b3, &b4, &c) == 4) {
addr.s6_addr32[0] = 0;
addr.s6_addr32[1] = 0;
addr.s6_addr32[2] = htonl(0xffff);
addr.s6_addr32[3] =
htonl((((((b1<<8)|b2)<<8)|b3)<<8)|b4);
} else if (sscanf(buf, NIP6_FMT "%c",
&b1, &b2, &b3, &b4, &b5, &b6, &b7, &b8, &c) == 8) {
addr.s6_addr16[0] = htons(b1);
addr.s6_addr16[1] = htons(b2);
addr.s6_addr16[2] = htons(b3);
addr.s6_addr16[3] = htons(b4);
addr.s6_addr16[4] = htons(b5);
addr.s6_addr16[5] = htons(b6);
addr.s6_addr16[6] = htons(b7);
addr.s6_addr16[7] = htons(b8);
} else
return -EINVAL;
expiry = get_expiry(&mesg);
@ -216,10 +242,7 @@ static int ip_map_parse(struct cache_detail *cd,
} else
dom = NULL;
addr.s_addr =
htonl((((((b1<<8)|b2)<<8)|b3)<<8)|b4);
ipmp = ip_map_lookup(class,addr);
ipmp = ip_map_lookup(class, &addr);
if (ipmp) {
err = ip_map_update(ipmp,
container_of(dom, struct unix_domain, h),
@ -239,7 +262,7 @@ static int ip_map_show(struct seq_file *m,
struct cache_head *h)
{
struct ip_map *im;
struct in_addr addr;
struct in6_addr addr;
char *dom = "-no-domain-";
if (h == NULL) {
@ -248,20 +271,24 @@ static int ip_map_show(struct seq_file *m,
}
im = container_of(h, struct ip_map, h);
/* class addr domain */
addr = im->m_addr;
ipv6_addr_copy(&addr, &im->m_addr);
if (test_bit(CACHE_VALID, &h->flags) &&
!test_bit(CACHE_NEGATIVE, &h->flags))
dom = im->m_client->h.name;
seq_printf(m, "%s %d.%d.%d.%d %s\n",
im->m_class,
ntohl(addr.s_addr) >> 24 & 0xff,
ntohl(addr.s_addr) >> 16 & 0xff,
ntohl(addr.s_addr) >> 8 & 0xff,
ntohl(addr.s_addr) >> 0 & 0xff,
dom
);
if (ipv6_addr_v4mapped(&addr)) {
seq_printf(m, "%s" NIPQUAD_FMT "%s\n",
im->m_class,
ntohl(addr.s6_addr32[3]) >> 24 & 0xff,
ntohl(addr.s6_addr32[3]) >> 16 & 0xff,
ntohl(addr.s6_addr32[3]) >> 8 & 0xff,
ntohl(addr.s6_addr32[3]) >> 0 & 0xff,
dom);
} else {
seq_printf(m, "%s" NIP6_FMT "%s\n",
im->m_class, NIP6(addr), dom);
}
return 0;
}
@ -281,16 +308,16 @@ struct cache_detail ip_map_cache = {
.alloc = ip_map_alloc,
};
static struct ip_map *ip_map_lookup(char *class, struct in_addr addr)
static struct ip_map *ip_map_lookup(char *class, struct in6_addr *addr)
{
struct ip_map ip;
struct cache_head *ch;
strcpy(ip.m_class, class);
ip.m_addr = addr;
ipv6_addr_copy(&ip.m_addr, addr);
ch = sunrpc_cache_lookup(&ip_map_cache, &ip.h,
hash_str(class, IP_HASHBITS) ^
hash_ip(addr.s_addr));
hash_ip6(*addr));
if (ch)
return container_of(ch, struct ip_map, h);
@ -319,14 +346,14 @@ static int ip_map_update(struct ip_map *ipm, struct unix_domain *udom, time_t ex
ch = sunrpc_cache_update(&ip_map_cache,
&ip.h, &ipm->h,
hash_str(ipm->m_class, IP_HASHBITS) ^
hash_ip(ipm->m_addr.s_addr));
hash_ip6(ipm->m_addr));
if (!ch)
return -ENOMEM;
cache_put(ch, &ip_map_cache);
return 0;
}
int auth_unix_add_addr(struct in_addr addr, struct auth_domain *dom)
int auth_unix_add_addr(struct in6_addr *addr, struct auth_domain *dom)
{
struct unix_domain *udom;
struct ip_map *ipmp;
@ -355,7 +382,7 @@ int auth_unix_forget_old(struct auth_domain *dom)
}
EXPORT_SYMBOL(auth_unix_forget_old);
struct auth_domain *auth_unix_lookup(struct in_addr addr)
struct auth_domain *auth_unix_lookup(struct in6_addr *addr)
{
struct ip_map *ipm;
struct auth_domain *rv;
@ -650,9 +677,24 @@ static int unix_gid_find(uid_t uid, struct group_info **gip,
int
svcauth_unix_set_client(struct svc_rqst *rqstp)
{
struct sockaddr_in *sin = svc_addr_in(rqstp);
struct sockaddr_in *sin;
struct sockaddr_in6 *sin6, sin6_storage;
struct ip_map *ipm;
switch (rqstp->rq_addr.ss_family) {
case AF_INET:
sin = svc_addr_in(rqstp);
sin6 = &sin6_storage;
ipv6_addr_set(&sin6->sin6_addr, 0, 0,
htonl(0x0000FFFF), sin->sin_addr.s_addr);
break;
case AF_INET6:
sin6 = svc_addr_in6(rqstp);
break;
default:
BUG();
}
rqstp->rq_client = NULL;
if (rqstp->rq_proc == 0)
return SVC_OK;
@ -660,7 +702,7 @@ svcauth_unix_set_client(struct svc_rqst *rqstp)
ipm = ip_map_cached_get(rqstp);
if (ipm == NULL)
ipm = ip_map_lookup(rqstp->rq_server->sv_program->pg_class,
sin->sin_addr);
&sin6->sin6_addr);
if (ipm == NULL)
return SVC_DENIED;

29
net/sunrpc/svcsock.c
View file

@ -38,6 +38,7 @@
#include <net/checksum.h>
#include <net/ip.h>
#include <net/ipv6.h>
#include <net/tcp.h>
#include <net/tcp_states.h>
#include <asm/uaccess.h>
#include <asm/ioctls.h>
@ -45,6 +46,7 @@
#include <linux/sunrpc/types.h>
#include <linux/sunrpc/clnt.h>
#include <linux/sunrpc/xdr.h>
#include <linux/sunrpc/msg_prot.h>
#include <linux/sunrpc/svcsock.h>
#include <linux/sunrpc/stats.h>
@ -822,8 +824,8 @@ static int svc_tcp_recvfrom(struct svc_rqst *rqstp)
* the next four bytes. Otherwise try to gobble up as much as
* possible up to the complete record length.
*/
if (svsk->sk_tcplen < 4) {
unsigned long want = 4 - svsk->sk_tcplen;
if (svsk->sk_tcplen < sizeof(rpc_fraghdr)) {
int want = sizeof(rpc_fraghdr) - svsk->sk_tcplen;
struct kvec iov;
iov.iov_base = ((char *) &svsk->sk_reclen) + svsk->sk_tcplen;
@ -833,32 +835,31 @@ static int svc_tcp_recvfrom(struct svc_rqst *rqstp)
svsk->sk_tcplen += len;
if (len < want) {
dprintk("svc: short recvfrom while reading record length (%d of %lu)\n",
len, want);
dprintk("svc: short recvfrom while reading record "
"length (%d of %d)\n", len, want);
svc_xprt_received(&svsk->sk_xprt);
return -EAGAIN; /* record header not complete */
}
svsk->sk_reclen = ntohl(svsk->sk_reclen);
if (!(svsk->sk_reclen & 0x80000000)) {
if (!(svsk->sk_reclen & RPC_LAST_STREAM_FRAGMENT)) {
/* FIXME: technically, a record can be fragmented,
* and non-terminal fragments will not have the top
* bit set in the fragment length header.
* But apparently no known nfs clients send fragmented
* records. */
if (net_ratelimit())
printk(KERN_NOTICE "RPC: bad TCP reclen 0x%08lx"
" (non-terminal)\n",
(unsigned long) svsk->sk_reclen);
printk(KERN_NOTICE "RPC: multiple fragments "
"per record not supported\n");
goto err_delete;
}
svsk->sk_reclen &= 0x7fffffff;
svsk->sk_reclen &= RPC_FRAGMENT_SIZE_MASK;
dprintk("svc: TCP record, %d bytes\n", svsk->sk_reclen);
if (svsk->sk_reclen > serv->sv_max_mesg) {
if (net_ratelimit())
printk(KERN_NOTICE "RPC: bad TCP reclen 0x%08lx"
" (large)\n",
(unsigned long) svsk->sk_reclen);
printk(KERN_NOTICE "RPC: "
"fragment too large: 0x%08lx\n",
(unsigned long)svsk->sk_reclen);
goto err_delete;
}
}
@ -1045,7 +1046,6 @@ void svc_cleanup_xprt_sock(void)
static void svc_tcp_init(struct svc_sock *svsk, struct svc_serv *serv)
{
struct sock *sk = svsk->sk_sk;
struct tcp_sock *tp = tcp_sk(sk);
svc_xprt_init(&svc_tcp_class, &svsk->sk_xprt, serv);
set_bit(XPT_CACHE_AUTH, &svsk->sk_xprt.xpt_flags);
@ -1063,7 +1063,7 @@ static void svc_tcp_init(struct svc_sock *svsk, struct svc_serv *serv)
svsk->sk_reclen = 0;
svsk->sk_tcplen = 0;
tp->nonagle = 1; /* disable Nagle's algorithm */
tcp_sk(sk)->nonagle |= TCP_NAGLE_OFF;
/* initialise setting must have enough space to
* receive and respond to one request.
@ -1101,6 +1101,7 @@ void svc_sock_update_bufs(struct svc_serv *serv)
}
spin_unlock_bh(&serv->sv_lock);
}
EXPORT_SYMBOL(svc_sock_update_bufs);
/*
* Initialize socket for RPC use and create svc_sock struct

2
net/sunrpc/xprtrdma/svc_rdma_transport.c
View file

@ -1036,6 +1036,8 @@ int svc_rdma_send(struct svcxprt_rdma *xprt, struct ib_send_wr *wr)
wait_event(xprt->sc_send_wait,
atomic_read(&xprt->sc_sq_count) <
xprt->sc_sq_depth);
if (test_bit(XPT_CLOSE, &xprt->sc_xprt.xpt_flags))
return 0;
continue;
}
/* Bumped used SQ WR count and post */