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-rw-r--r--net/sunrpc/auth_gss/auth_gss.c42
-rw-r--r--net/sunrpc/auth_gss/gss_krb5_crypto.c101
-rw-r--r--net/sunrpc/auth_gss/gss_krb5_mech.c18
-rw-r--r--net/sunrpc/auth_gss/gss_krb5_seal.c55
-rw-r--r--net/sunrpc/auth_gss/gss_krb5_unseal.c87
-rw-r--r--net/sunrpc/auth_gss/gss_krb5_wrap.c153
-rw-r--r--net/sunrpc/auth_gss/gss_spkm3_mech.c131
-rw-r--r--net/sunrpc/auth_gss/gss_spkm3_seal.c101
-rw-r--r--net/sunrpc/auth_gss/gss_spkm3_token.c6
-rw-r--r--net/sunrpc/auth_gss/gss_spkm3_unseal.c92
-rw-r--r--net/sunrpc/clnt.c70
-rw-r--r--net/sunrpc/pmap_clnt.c13
-rw-r--r--net/sunrpc/sched.c137
-rw-r--r--net/sunrpc/socklib.c18
-rw-r--r--net/sunrpc/sunrpc_syms.c5
-rw-r--r--net/sunrpc/sysctl.c50
-rw-r--r--net/sunrpc/xdr.c255
-rw-r--r--net/sunrpc/xprt.c33
-rw-r--r--net/sunrpc/xprtsock.c716
19 files changed, 1033 insertions, 1050 deletions
diff --git a/net/sunrpc/auth_gss/auth_gss.c b/net/sunrpc/auth_gss/auth_gss.c
index e5a84a482e5..a02ecc1f230 100644
--- a/net/sunrpc/auth_gss/auth_gss.c
+++ b/net/sunrpc/auth_gss/auth_gss.c
@@ -68,7 +68,7 @@ static struct rpc_credops gss_credops;
#define GSS_CRED_SLACK 1024 /* XXX: unused */
/* length of a krb5 verifier (48), plus data added before arguments when
* using integrity (two 4-byte integers): */
-#define GSS_VERF_SLACK 56
+#define GSS_VERF_SLACK 100
/* XXX this define must match the gssd define
* as it is passed to gssd to signal the use of
@@ -94,46 +94,6 @@ struct gss_auth {
static void gss_destroy_ctx(struct gss_cl_ctx *);
static struct rpc_pipe_ops gss_upcall_ops;
-void
-print_hexl(u32 *p, u_int length, u_int offset)
-{
- u_int i, j, jm;
- u8 c, *cp;
-
- dprintk("RPC: print_hexl: length %d\n",length);
- dprintk("\n");
- cp = (u8 *) p;
-
- for (i = 0; i < length; i += 0x10) {
- dprintk(" %04x: ", (u_int)(i + offset));
- jm = length - i;
- jm = jm > 16 ? 16 : jm;
-
- for (j = 0; j < jm; j++) {
- if ((j % 2) == 1)
- dprintk("%02x ", (u_int)cp[i+j]);
- else
- dprintk("%02x", (u_int)cp[i+j]);
- }
- for (; j < 16; j++) {
- if ((j % 2) == 1)
- dprintk(" ");
- else
- dprintk(" ");
- }
- dprintk(" ");
-
- for (j = 0; j < jm; j++) {
- c = cp[i+j];
- c = isprint(c) ? c : '.';
- dprintk("%c", c);
- }
- dprintk("\n");
- }
-}
-
-EXPORT_SYMBOL(print_hexl);
-
static inline struct gss_cl_ctx *
gss_get_ctx(struct gss_cl_ctx *ctx)
{
diff --git a/net/sunrpc/auth_gss/gss_krb5_crypto.c b/net/sunrpc/auth_gss/gss_krb5_crypto.c
index e11a40b25cc..d926cda8862 100644
--- a/net/sunrpc/auth_gss/gss_krb5_crypto.c
+++ b/net/sunrpc/auth_gss/gss_krb5_crypto.c
@@ -43,6 +43,7 @@
#include <linux/highmem.h>
#include <linux/pagemap.h>
#include <linux/sunrpc/gss_krb5.h>
+#include <linux/sunrpc/xdr.h>
#ifdef RPC_DEBUG
# define RPCDBG_FACILITY RPCDBG_AUTH
@@ -61,9 +62,6 @@ krb5_encrypt(
u8 local_iv[16] = {0};
struct blkcipher_desc desc = { .tfm = tfm, .info = local_iv };
- dprintk("RPC: krb5_encrypt: input data:\n");
- print_hexl((u32 *)in, length, 0);
-
if (length % crypto_blkcipher_blocksize(tfm) != 0)
goto out;
@@ -80,12 +78,9 @@ krb5_encrypt(
sg_set_buf(sg, out, length);
ret = crypto_blkcipher_encrypt_iv(&desc, sg, sg, length);
-
- dprintk("RPC: krb5_encrypt: output data:\n");
- print_hexl((u32 *)out, length, 0);
out:
dprintk("RPC: krb5_encrypt returns %d\n",ret);
- return(ret);
+ return ret;
}
EXPORT_SYMBOL(krb5_encrypt);
@@ -103,9 +98,6 @@ krb5_decrypt(
u8 local_iv[16] = {0};
struct blkcipher_desc desc = { .tfm = tfm, .info = local_iv };
- dprintk("RPC: krb5_decrypt: input data:\n");
- print_hexl((u32 *)in, length, 0);
-
if (length % crypto_blkcipher_blocksize(tfm) != 0)
goto out;
@@ -121,83 +113,14 @@ krb5_decrypt(
sg_set_buf(sg, out, length);
ret = crypto_blkcipher_decrypt_iv(&desc, sg, sg, length);
-
- dprintk("RPC: krb5_decrypt: output_data:\n");
- print_hexl((u32 *)out, length, 0);
out:
dprintk("RPC: gss_k5decrypt returns %d\n",ret);
- return(ret);
+ return ret;
}
EXPORT_SYMBOL(krb5_decrypt);
static int
-process_xdr_buf(struct xdr_buf *buf, int offset, int len,
- int (*actor)(struct scatterlist *, void *), void *data)
-{
- int i, page_len, thislen, page_offset, ret = 0;
- struct scatterlist sg[1];
-
- if (offset >= buf->head[0].iov_len) {
- offset -= buf->head[0].iov_len;
- } else {
- thislen = buf->head[0].iov_len - offset;
- if (thislen > len)
- thislen = len;
- sg_set_buf(sg, buf->head[0].iov_base + offset, thislen);
- ret = actor(sg, data);
- if (ret)
- goto out;
- offset = 0;
- len -= thislen;
- }
- if (len == 0)
- goto out;
-
- if (offset >= buf->page_len) {
- offset -= buf->page_len;
- } else {
- page_len = buf->page_len - offset;
- if (page_len > len)
- page_len = len;
- len -= page_len;
- page_offset = (offset + buf->page_base) & (PAGE_CACHE_SIZE - 1);
- i = (offset + buf->page_base) >> PAGE_CACHE_SHIFT;
- thislen = PAGE_CACHE_SIZE - page_offset;
- do {
- if (thislen > page_len)
- thislen = page_len;
- sg->page = buf->pages[i];
- sg->offset = page_offset;
- sg->length = thislen;
- ret = actor(sg, data);
- if (ret)
- goto out;
- page_len -= thislen;
- i++;
- page_offset = 0;
- thislen = PAGE_CACHE_SIZE;
- } while (page_len != 0);
- offset = 0;
- }
- if (len == 0)
- goto out;
-
- if (offset < buf->tail[0].iov_len) {
- thislen = buf->tail[0].iov_len - offset;
- if (thislen > len)
- thislen = len;
- sg_set_buf(sg, buf->tail[0].iov_base + offset, thislen);
- ret = actor(sg, data);
- len -= thislen;
- }
- if (len != 0)
- ret = -EINVAL;
-out:
- return ret;
-}
-
-static int
checksummer(struct scatterlist *sg, void *data)
{
struct hash_desc *desc = data;
@@ -207,23 +130,13 @@ checksummer(struct scatterlist *sg, void *data)
/* checksum the plaintext data and hdrlen bytes of the token header */
s32
-make_checksum(s32 cksumtype, char *header, int hdrlen, struct xdr_buf *body,
+make_checksum(char *cksumname, char *header, int hdrlen, struct xdr_buf *body,
int body_offset, struct xdr_netobj *cksum)
{
- char *cksumname;
struct hash_desc desc; /* XXX add to ctx? */
struct scatterlist sg[1];
int err;
- switch (cksumtype) {
- case CKSUMTYPE_RSA_MD5:
- cksumname = "md5";
- break;
- default:
- dprintk("RPC: krb5_make_checksum:"
- " unsupported checksum %d", cksumtype);
- return GSS_S_FAILURE;
- }
desc.tfm = crypto_alloc_hash(cksumname, 0, CRYPTO_ALG_ASYNC);
if (IS_ERR(desc.tfm))
return GSS_S_FAILURE;
@@ -237,7 +150,7 @@ make_checksum(s32 cksumtype, char *header, int hdrlen, struct xdr_buf *body,
err = crypto_hash_update(&desc, sg, hdrlen);
if (err)
goto out;
- err = process_xdr_buf(body, body_offset, body->len - body_offset,
+ err = xdr_process_buf(body, body_offset, body->len - body_offset,
checksummer, &desc);
if (err)
goto out;
@@ -335,7 +248,7 @@ gss_encrypt_xdr_buf(struct crypto_blkcipher *tfm, struct xdr_buf *buf,
desc.fragno = 0;
desc.fraglen = 0;
- ret = process_xdr_buf(buf, offset, buf->len - offset, encryptor, &desc);
+ ret = xdr_process_buf(buf, offset, buf->len - offset, encryptor, &desc);
return ret;
}
@@ -401,7 +314,7 @@ gss_decrypt_xdr_buf(struct crypto_blkcipher *tfm, struct xdr_buf *buf,
desc.desc.flags = 0;
desc.fragno = 0;
desc.fraglen = 0;
- return process_xdr_buf(buf, offset, buf->len - offset, decryptor, &desc);
+ return xdr_process_buf(buf, offset, buf->len - offset, decryptor, &desc);
}
EXPORT_SYMBOL(gss_decrypt_xdr_buf);
diff --git a/net/sunrpc/auth_gss/gss_krb5_mech.c b/net/sunrpc/auth_gss/gss_krb5_mech.c
index 754b8cd6439..05d4bee86fc 100644
--- a/net/sunrpc/auth_gss/gss_krb5_mech.c
+++ b/net/sunrpc/auth_gss/gss_krb5_mech.c
@@ -129,6 +129,7 @@ gss_import_sec_context_kerberos(const void *p,
{
const void *end = (const void *)((const char *)p + len);
struct krb5_ctx *ctx;
+ int tmp;
if (!(ctx = kzalloc(sizeof(*ctx), GFP_KERNEL)))
goto out_err;
@@ -136,18 +137,23 @@ gss_import_sec_context_kerberos(const void *p,
p = simple_get_bytes(p, end, &ctx->initiate, sizeof(ctx->initiate));
if (IS_ERR(p))
goto out_err_free_ctx;
- p = simple_get_bytes(p, end, &ctx->seed_init, sizeof(ctx->seed_init));
- if (IS_ERR(p))
+ /* The downcall format was designed before we completely understood
+ * the uses of the context fields; so it includes some stuff we
+ * just give some minimal sanity-checking, and some we ignore
+ * completely (like the next twenty bytes): */
+ if (unlikely(p + 20 > end || p + 20 < p))
goto out_err_free_ctx;
- p = simple_get_bytes(p, end, ctx->seed, sizeof(ctx->seed));
+ p += 20;
+ p = simple_get_bytes(p, end, &tmp, sizeof(tmp));
if (IS_ERR(p))
goto out_err_free_ctx;
- p = simple_get_bytes(p, end, &ctx->signalg, sizeof(ctx->signalg));
- if (IS_ERR(p))
+ if (tmp != SGN_ALG_DES_MAC_MD5)
goto out_err_free_ctx;
- p = simple_get_bytes(p, end, &ctx->sealalg, sizeof(ctx->sealalg));
+ p = simple_get_bytes(p, end, &tmp, sizeof(tmp));
if (IS_ERR(p))
goto out_err_free_ctx;
+ if (tmp != SEAL_ALG_DES)
+ goto out_err_free_ctx;
p = simple_get_bytes(p, end, &ctx->endtime, sizeof(ctx->endtime));
if (IS_ERR(p))
goto out_err_free_ctx;
diff --git a/net/sunrpc/auth_gss/gss_krb5_seal.c b/net/sunrpc/auth_gss/gss_krb5_seal.c
index 08601ee4cd7..d0bb5064f8c 100644
--- a/net/sunrpc/auth_gss/gss_krb5_seal.c
+++ b/net/sunrpc/auth_gss/gss_krb5_seal.c
@@ -77,7 +77,6 @@ gss_get_mic_kerberos(struct gss_ctx *gss_ctx, struct xdr_buf *text,
struct xdr_netobj *token)
{
struct krb5_ctx *ctx = gss_ctx->internal_ctx_id;
- s32 checksum_type;
char cksumdata[16];
struct xdr_netobj md5cksum = {.len = 0, .data = cksumdata};
unsigned char *ptr, *krb5_hdr, *msg_start;
@@ -88,21 +87,6 @@ gss_get_mic_kerberos(struct gss_ctx *gss_ctx, struct xdr_buf *text,
now = get_seconds();
- switch (ctx->signalg) {
- case SGN_ALG_DES_MAC_MD5:
- checksum_type = CKSUMTYPE_RSA_MD5;
- break;
- default:
- dprintk("RPC: gss_krb5_seal: ctx->signalg %d not"
- " supported\n", ctx->signalg);
- goto out_err;
- }
- if (ctx->sealalg != SEAL_ALG_NONE && ctx->sealalg != SEAL_ALG_DES) {
- dprintk("RPC: gss_krb5_seal: ctx->sealalg %d not supported\n",
- ctx->sealalg);
- goto out_err;
- }
-
token->len = g_token_size(&ctx->mech_used, 22);
ptr = token->data;
@@ -115,37 +99,26 @@ gss_get_mic_kerberos(struct gss_ctx *gss_ctx, struct xdr_buf *text,
krb5_hdr = ptr - 2;
msg_start = krb5_hdr + 24;
- *(__be16 *)(krb5_hdr + 2) = htons(ctx->signalg);
+ *(__be16 *)(krb5_hdr + 2) = htons(SGN_ALG_DES_MAC_MD5);
memset(krb5_hdr + 4, 0xff, 4);
- if (make_checksum(checksum_type, krb5_hdr, 8, text, 0, &md5cksum))
- goto out_err;
-
- switch (ctx->signalg) {
- case SGN_ALG_DES_MAC_MD5:
- if (krb5_encrypt(ctx->seq, NULL, md5cksum.data,
- md5cksum.data, md5cksum.len))
- goto out_err;
- memcpy(krb5_hdr + 16,
- md5cksum.data + md5cksum.len - KRB5_CKSUM_LENGTH,
- KRB5_CKSUM_LENGTH);
-
- dprintk("RPC: make_seal_token: cksum data: \n");
- print_hexl((u32 *) (krb5_hdr + 16), KRB5_CKSUM_LENGTH, 0);
- break;
- default:
- BUG();
- }
+ if (make_checksum("md5", krb5_hdr, 8, text, 0, &md5cksum))
+ return GSS_S_FAILURE;
+
+ if (krb5_encrypt(ctx->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);
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,
- seq_send, krb5_hdr + 16, krb5_hdr + 8)))
- goto out_err;
+ if (krb5_make_seq_num(ctx->seq, ctx->initiate ? 0 : 0xff,
+ ctx->seq_send, krb5_hdr + 16, krb5_hdr + 8))
+ return GSS_S_FAILURE;
- return ((ctx->endtime < now) ? GSS_S_CONTEXT_EXPIRED : GSS_S_COMPLETE);
-out_err:
- return GSS_S_FAILURE;
+ return (ctx->endtime < now) ? GSS_S_CONTEXT_EXPIRED : GSS_S_COMPLETE;
}
diff --git a/net/sunrpc/auth_gss/gss_krb5_unseal.c b/net/sunrpc/auth_gss/gss_krb5_unseal.c
index 0828cf64100..87f8977ccec 100644
--- a/net/sunrpc/auth_gss/gss_krb5_unseal.c
+++ b/net/sunrpc/auth_gss/gss_krb5_unseal.c
@@ -78,7 +78,6 @@ gss_verify_mic_kerberos(struct gss_ctx *gss_ctx,
struct krb5_ctx *ctx = gss_ctx->internal_ctx_id;
int signalg;
int sealalg;
- s32 checksum_type;
char cksumdata[16];
struct xdr_netobj md5cksum = {.len = 0, .data = cksumdata};
s32 now;
@@ -86,96 +85,54 @@ gss_verify_mic_kerberos(struct gss_ctx *gss_ctx,
s32 seqnum;
unsigned char *ptr = (unsigned char *)read_token->data;
int bodysize;
- u32 ret = GSS_S_DEFECTIVE_TOKEN;
dprintk("RPC: krb5_read_token\n");
if (g_verify_token_header(&ctx->mech_used, &bodysize, &ptr,
read_token->len))
- goto out;
+ return GSS_S_DEFECTIVE_TOKEN;
if ((*ptr++ != ((KG_TOK_MIC_MSG>>8)&0xff)) ||
(*ptr++ != ( KG_TOK_MIC_MSG &0xff)) )
- goto out;
+ return GSS_S_DEFECTIVE_TOKEN;
/* XXX sanity-check bodysize?? */
- /* get the sign and seal algorithms */
-
signalg = ptr[0] + (ptr[1] << 8);
- sealalg = ptr[2] + (ptr[3] << 8);
+ if (signalg != SGN_ALG_DES_MAC_MD5)
+ return GSS_S_DEFECTIVE_TOKEN;
- /* Sanity checks */
+ sealalg = ptr[2] + (ptr[3] << 8);
+ if (sealalg != SEAL_ALG_NONE)
+ return GSS_S_DEFECTIVE_TOKEN;
if ((ptr[4] != 0xff) || (ptr[5] != 0xff))
- goto out;
-
- if (sealalg != 0xffff)
- goto out;
-
- /* there are several mappings of seal algorithms to sign algorithms,
- but few enough that we can try them all. */
-
- if ((ctx->sealalg == SEAL_ALG_NONE && signalg > 1) ||
- (ctx->sealalg == SEAL_ALG_1 && signalg != SGN_ALG_3) ||
- (ctx->sealalg == SEAL_ALG_DES3KD &&
- signalg != SGN_ALG_HMAC_SHA1_DES3_KD))
- goto out;
-
- /* compute the checksum of the message */
-
- /* initialize the the cksum */
- switch (signalg) {
- case SGN_ALG_DES_MAC_MD5:
- checksum_type = CKSUMTYPE_RSA_MD5;
- break;
- default:
- ret = GSS_S_DEFECTIVE_TOKEN;
- goto out;
- }
-
- switch (signalg) {
- case SGN_ALG_DES_MAC_MD5:
- ret = make_checksum(checksum_type, ptr - 2, 8,
- message_buffer, 0, &md5cksum);
- if (ret)
- goto out;
-
- ret = krb5_encrypt(ctx->seq, NULL, md5cksum.data,
- md5cksum.data, 16);
- if (ret)
- goto out;
-
- if (memcmp(md5cksum.data + 8, ptr + 14, 8)) {
- ret = GSS_S_BAD_SIG;
- goto out;
- }
- break;
- default:
- ret = GSS_S_DEFECTIVE_TOKEN;
- goto out;
- }
+ return GSS_S_DEFECTIVE_TOKEN;
+
+ if (make_checksum("md5", ptr - 2, 8, message_buffer, 0, &md5cksum))
+ return GSS_S_FAILURE;
+
+ if (krb5_encrypt(ctx->seq, NULL, md5cksum.data, md5cksum.data, 16))
+ return GSS_S_FAILURE;
+
+ if (memcmp(md5cksum.data + 8, ptr + 14, 8))
+ return GSS_S_BAD_SIG;
/* it got through unscathed. Make sure the context is unexpired */
now = get_seconds();
- ret = GSS_S_CONTEXT_EXPIRED;
if (now > ctx->endtime)
- goto out;
+ return GSS_S_CONTEXT_EXPIRED;
/* do sequencing checks */
- ret = GSS_S_BAD_SIG;
- if ((ret = krb5_get_seq_num(ctx->seq, ptr + 14, ptr + 6, &direction,
- &seqnum)))
- goto out;
+ if (krb5_get_seq_num(ctx->seq, ptr + 14, ptr + 6, &direction, &seqnum))
+ return GSS_S_FAILURE;
if ((ctx->initiate && direction != 0xff) ||
(!ctx->initiate && direction != 0))
- goto out;
+ return GSS_S_BAD_SIG;
- ret = GSS_S_COMPLETE;
-out:
- return ret;
+ return GSS_S_COMPLETE;
}
diff --git a/net/sunrpc/auth_gss/gss_krb5_wrap.c b/net/sunrpc/auth_gss/gss_krb5_wrap.c
index cc45c1605f8..fe25b3d898d 100644
--- a/net/sunrpc/auth_gss/gss_krb5_wrap.c
+++ b/net/sunrpc/auth_gss/gss_krb5_wrap.c
@@ -57,9 +57,9 @@ gss_krb5_remove_padding(struct xdr_buf *buf, int blocksize)
>>PAGE_CACHE_SHIFT;
int offset = (buf->page_base + len - 1)
& (PAGE_CACHE_SIZE - 1);
- ptr = kmap_atomic(buf->pages[last], KM_SKB_SUNRPC_DATA);
+ ptr = kmap_atomic(buf->pages[last], KM_USER0);
pad = *(ptr + offset);
- kunmap_atomic(ptr, KM_SKB_SUNRPC_DATA);
+ kunmap_atomic(ptr, KM_USER0);
goto out;
} else
len -= buf->page_len;
@@ -120,7 +120,6 @@ gss_wrap_kerberos(struct gss_ctx *ctx, int offset,
struct xdr_buf *buf, struct page **pages)
{
struct krb5_ctx *kctx = ctx->internal_ctx_id;
- s32 checksum_type;
char cksumdata[16];
struct xdr_netobj md5cksum = {.len = 0, .data = cksumdata};
int blocksize = 0, plainlen;
@@ -134,21 +133,6 @@ gss_wrap_kerberos(struct gss_ctx *ctx, int offset,
now = get_seconds();
- switch (kctx->signalg) {
- case SGN_ALG_DES_MAC_MD5:
- checksum_type = CKSUMTYPE_RSA_MD5;
- break;
- default:
- dprintk("RPC: gss_krb5_seal: kctx->signalg %d not"
- " supported\n", kctx->signalg);
- goto out_err;
- }
- if (kctx->sealalg != SEAL_ALG_NONE && kctx->sealalg != SEAL_ALG_DES) {
- dprintk("RPC: gss_krb5_seal: kctx->sealalg %d not supported\n",
- kctx->sealalg);
- goto out_err;
- }
-
blocksize = crypto_blkcipher_blocksize(kctx->enc);
gss_krb5_add_padding(buf, offset, blocksize);
BUG_ON((buf->len - offset) % blocksize);
@@ -175,37 +159,27 @@ gss_wrap_kerberos(struct gss_ctx *ctx, int offset,
/* ptr now at byte 2 of header described in rfc 1964, section 1.2.1: */
krb5_hdr = ptr - 2;
msg_start = krb5_hdr + 24;
- /* XXXJBF: */ BUG_ON(buf->head[0].iov_base + offset + headlen != msg_start + blocksize);
- *(__be16 *)(krb5_hdr + 2) = htons(kctx->signalg);
+ *(__be16 *)(krb5_hdr + 2) = htons(SGN_ALG_DES_MAC_MD5);
memset(krb5_hdr + 4, 0xff, 4);
- *(__be16 *)(krb5_hdr + 4) = htons(kctx->sealalg);
+ *(__be16 *)(krb5_hdr + 4) = htons(SEAL_ALG_DES);
make_confounder(msg_start, blocksize);
/* XXXJBF: UGH!: */
tmp_pages = buf->pages;
buf->pages = pages;
- if (make_checksum(checksum_type, krb5_hdr, 8, buf,
+ if (make_checksum("md5", krb5_hdr, 8, buf,
offset + headlen - blocksize, &md5cksum))
- goto out_err;
+ return GSS_S_FAILURE;
buf->pages = tmp_pages;
- switch (kctx->signalg) {
- case SGN_ALG_DES_MAC_MD5:
- if (krb5_encrypt(kctx->seq, NULL, md5cksum.data,
- md5cksum.data, md5cksum.len))
- goto out_err;
- memcpy(krb5_hdr + 16,
- md5cksum.data + md5cksum.len - KRB5_CKSUM_LENGTH,
- KRB5_CKSUM_LENGTH);
-
- dprintk("RPC: make_seal_token: cksum data: \n");
- print_hexl((u32 *) (krb5_hdr + 16), KRB5_CKSUM_LENGTH, 0);
- break;
- default:
- BUG();
- }
+ 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);
spin_lock(&krb5_seq_lock);
seq_send = kctx->seq_send++;
@@ -215,15 +189,13 @@ gss_wrap_kerberos(struct gss_ctx *ctx, int offset,
* and encrypt at the same time: */
if ((krb5_make_seq_num(kctx->seq, kctx->initiate ? 0 : 0xff,
seq_send, krb5_hdr + 16, krb5_hdr + 8)))
- goto out_err;
+ return GSS_S_FAILURE;
if (gss_encrypt_xdr_buf(kctx->enc, buf, offset + headlen - blocksize,
pages))
- goto out_err;
+ return GSS_S_FAILURE;
- return ((kctx->endtime < now) ? GSS_S_CONTEXT_EXPIRED : GSS_S_COMPLETE);
-out_err:
- return GSS_S_FAILURE;
+ return (kctx->endtime < now) ? GSS_S_CONTEXT_EXPIRED : GSS_S_COMPLETE;
}
u32
@@ -232,7 +204,6 @@ gss_unwrap_kerberos(struct gss_ctx *ctx, int offset, struct xdr_buf *buf)
struct krb5_ctx *kctx = ctx->internal_ctx_id;
int signalg;
int sealalg;
- s32 checksum_type;
char cksumdata[16];
struct xdr_netobj md5cksum = {.len = 0, .data = cksumdata};
s32 now;
@@ -240,7 +211,6 @@ gss_unwrap_kerberos(struct gss_ctx *ctx, int offset, struct xdr_buf *buf)
s32 seqnum;
unsigned char *ptr;
int bodysize;
- u32 ret = GSS_S_DEFECTIVE_TOKEN;
void *data_start, *orig_start;
int data_len;
int blocksize;
@@ -250,98 +220,58 @@ gss_unwrap_kerberos(struct gss_ctx *ctx, int offset, struct xdr_buf *buf)
ptr = (u8 *)buf->head[0].iov_base + offset;
if (g_verify_token_header(&kctx->mech_used, &bodysize, &ptr,
buf->len - offset))
- goto out;
+ return GSS_S_DEFECTIVE_TOKEN;
if ((*ptr++ != ((KG_TOK_WRAP_MSG>>8)&0xff)) ||
(*ptr++ != (KG_TOK_WRAP_MSG &0xff)) )
- goto out;
+ return GSS_S_DEFECTIVE_TOKEN;
/* XXX sanity-check bodysize?? */
/* get the sign and seal algorithms */
signalg = ptr[0] + (ptr[1] << 8);
- sealalg = ptr[2] + (ptr[3] << 8);
+ if (signalg != SGN_ALG_DES_MAC_MD5)
+ return GSS_S_DEFECTIVE_TOKEN;
- /* Sanity checks */
+ sealalg = ptr[2] + (ptr[3] << 8);
+ if (sealalg != SEAL_ALG_DES)
+ return GSS_S_DEFECTIVE_TOKEN;
if ((ptr[4] != 0xff) || (ptr[5] != 0xff))
- goto out;
-
- if (sealalg == 0xffff)
- goto out;
-
- /* in the current spec, there is only one valid seal algorithm per
- key type, so a simple comparison is ok */
-
- if (sealalg != kctx->sealalg)
- goto out;
-
- /* there are several mappings of seal algorithms to sign algorithms,
- but few enough that we can try them all. */
-
- if ((kctx->sealalg == SEAL_ALG_NONE && signalg > 1) ||
- (kctx->sealalg == SEAL_ALG_1 && signalg != SGN_ALG_3) ||
- (kctx->sealalg == SEAL_ALG_DES3KD &&
- signalg != SGN_ALG_HMAC_SHA1_DES3_KD))
- goto out;
+ return GSS_S_DEFECTIVE_TOKEN;
if (gss_decrypt_xdr_buf(kctx->enc, buf,
ptr + 22 - (unsigned char *)buf->head[0].iov_base))
- goto out;
+ return GSS_S_DEFECTIVE_TOKEN;
- /* compute the checksum of the message */
+ if (make_checksum("md5", ptr - 2, 8, buf,
+ ptr + 22 - (unsigned char *)buf->head[0].iov_base, &md5cksum))
+ return GSS_S_FAILURE;
- /* initialize the the cksum */
- switch (signalg) {
- case SGN_ALG_DES_MAC_MD5:
- checksum_type = CKSUMTYPE_RSA_MD5;
- break;
- default:
- ret = GSS_S_DEFECTIVE_TOKEN;
- goto out;
- }
-
- switch (signalg) {
- case SGN_ALG_DES_MAC_MD5:
- ret = make_checksum(checksum_type, ptr - 2, 8, buf,
- ptr + 22 - (unsigned char *)buf->head[0].iov_base, &md5cksum);
- if (ret)
- goto out;
-
- ret = krb5_encrypt(kctx->seq, NULL, md5cksum.data,
- md5cksum.data, md5cksum.len);
- if (ret)
- goto out;
-
- if (memcmp(md5cksum.data + 8, ptr + 14, 8)) {
- ret = GSS_S_BAD_SIG;
- goto out;
- }
- break;
- default:
- ret = GSS_S_DEFECTIVE_TOKEN;
- goto out;
- }
+ if (krb5_encrypt(kctx->seq, NULL, md5cksum.data,
+ md5cksum.data, md5cksum.len))
+ return GSS_S_FAILURE;
+
+ if (memcmp(md5cksum.data + 8, ptr + 14, 8))
+ return GSS_S_BAD_SIG;
/* it got through unscathed. Make sure the context is unexpired */
now = get_seconds();
- ret = GSS_S_CONTEXT_EXPIRED;
if (now > kctx->endtime)
- goto out;
+ return GSS_S_CONTEXT_EXPIRED;
/* do sequencing checks */
- ret = GSS_S_BAD_SIG;
- if ((ret = krb5_get_seq_num(kctx->seq, ptr + 14, ptr + 6, &direction,
- &seqnum)))
- goto out;
+ if (krb5_get_seq_num(kctx->seq, ptr + 14, ptr + 6, &direction,
+ &seqnum))
+ return GSS_S_BAD_SIG;
if ((kctx->initiate && direction != 0xff) ||
(!kctx->initiate && direction != 0))
- goto out;
+ return GSS_S_BAD_SIG;
/* Copy the data back to the right position. XXX: Would probably be
* better to copy and encrypt at the same time. */
@@ -354,11 +284,8 @@ gss_unwrap_kerberos(struct gss_ctx *ctx, int offset, struct xdr_buf *buf)
buf->head[0].iov_len -= (data_start - orig_start);
buf->len -= (data_start - orig_start);
- ret = GSS_S_DEFECTIVE_TOKEN;
if (gss_krb5_remove_padding(buf, blocksize))
- goto out;
+ return GSS_S_DEFECTIVE_TOKEN;
- ret = GSS_S_COMPLETE;
-out:
- return ret;
+ return GSS_S_COMPLETE;
}
diff --git a/net/sunrpc/auth_gss/gss_spkm3_mech.c b/net/sunrpc/auth_gss/gss_spkm3_mech.c
index d57f6083889..41465072d0b 100644
--- a/net/sunrpc/auth_gss/gss_spkm3_mech.c
+++ b/net/sunrpc/auth_gss/gss_spkm3_mech.c
@@ -82,133 +82,73 @@ simple_get_netobj(const void *p, const void *end, struct xdr_netobj *res)
return q;
}
-static inline const void *
-get_key(const void *p, const void *end, struct crypto_blkcipher **res,
- int *resalg)
-{
- struct xdr_netobj key = { 0 };
- int setkey = 0;
- char *alg_name;
-
- p = simple_get_bytes(p, end, resalg, sizeof(*resalg));
- if (IS_ERR(p))
- goto out_err;
- p = simple_get_netobj(p, end, &key);
- if (IS_ERR(p))
- goto out_err;
-
- switch (*resalg) {
- case NID_des_cbc:
- alg_name = "cbc(des)";
- setkey = 1;
- break;
- case NID_cast5_cbc:
- /* XXXX here in name only, not used */
- alg_name = "cbc(cast5)";
- setkey = 0; /* XXX will need to set to 1 */
- break;
- case NID_md5:
- if (key.len == 0) {
- dprintk("RPC: SPKM3 get_key: NID_md5 zero Key length\n");
- }
- alg_name = "md5";
- setkey = 0;
- break;
- default:
- dprintk("gss_spkm3_mech: unsupported algorithm %d\n", *resalg);
- goto out_err_free_key;
- }
- *res = crypto_alloc_blkcipher(alg_name, 0, CRYPTO_ALG_ASYNC);
- if (IS_ERR(*res)) {
- printk("gss_spkm3_mech: unable to initialize crypto algorthm %s\n", alg_name);
- *res = NULL;
- goto out_err_free_key;
- }
- if (setkey) {
- if (crypto_blkcipher_setkey(*res, key.data, key.len)) {
- printk("gss_spkm3_mech: error setting key for crypto algorthm %s\n", alg_name);
- goto out_err_free_tfm;
- }
- }
-
- if(key.len > 0)
- kfree(key.data);
- return p;
-
-out_err_free_tfm:
- crypto_free_blkcipher(*res);
-out_err_free_key:
- if(key.len > 0)
- kfree(key.data);
- p = ERR_PTR(-EINVAL);
-out_err:
- return p;
-}
-
static int
gss_import_sec_context_spkm3(const void *p, size_t len,
struct gss_ctx *ctx_id)
{
const void *end = (const void *)((const char *)p + len);
struct spkm3_ctx *ctx;
+ int version;
if (!(ctx = kzalloc(sizeof(*ctx), GFP_KERNEL)))
goto out_err;
+ p = simple_get_bytes(p, end, &version, sizeof(version));
+ if (IS_ERR(p))
+ goto out_err_free_ctx;
+ if (version != 1) {
+ dprintk("RPC: unknown spkm3 token format: obsolete nfs-utils?\n");
+ goto out_err_free_ctx;
+ }
+
p = simple_get_netobj(p, end, &ctx->ctx_id);
if (IS_ERR(p))
goto out_err_free_ctx;
- p = simple_get_bytes(p, end, &ctx->qop, sizeof(ctx->qop));
+ p = simple_get_bytes(p, end, &ctx->endtime, sizeof(ctx->endtime));
if (IS_ERR(p))
goto out_err_free_ctx_id;
p = simple_get_netobj(p, end, &ctx->mech_used);
if (IS_ERR(p))
- goto out_err_free_mech;
+ goto out_err_free_ctx_id;
p = simple_get_bytes(p, end, &ctx->ret_flags, sizeof(ctx->ret_flags));
if (IS_ERR(p))
goto out_err_free_mech;
- p = simple_get_bytes(p, end, &ctx->req_flags, sizeof(ctx->req_flags));
+ p = simple_get_netobj(p, end, &ctx->conf_alg);
if (IS_ERR(p))
goto out_err_free_mech;
- p = simple_get_netobj(p, end, &ctx->share_key);
- if (IS_ERR(p))
- goto out_err_free_s_key;
-
- p = get_key(p, end, &ctx->derived_conf_key, &ctx->conf_alg);
+ p = simple_get_netobj(p, end, &ctx->derived_conf_key);
if (IS_ERR(p))
- goto out_err_free_s_key;
+ goto out_err_free_conf_alg;
- p = get_key(p, end, &ctx->derived_integ_key, &ctx->intg_alg);
+ p = simple_get_netobj(p, end, &ctx->intg_alg);
if (IS_ERR(p))
- goto out_err_free_key1;
+ goto out_err_free_conf_key;
- p = simple_get_bytes(p, end, &ctx->keyestb_alg, sizeof(ctx->keyestb_alg));
+ p = simple_get_netobj(p, end, &ctx->derived_integ_key);
if (IS_ERR(p))
- goto out_err_free_key2;
-
- p = simple_get_bytes(p, end, &ctx->owf_alg, sizeof(ctx->owf_alg));
- if (IS_ERR(p))
- goto out_err_free_key2;
+ goto out_err_free_intg_alg;
if (p != end)
- goto out_err_free_key2;
+ goto out_err_free_intg_key;
ctx_id->internal_ctx_id = ctx;
dprintk("Successfully imported new spkm context.\n");
return 0;
-out_err_free_key2:
- crypto_free_blkcipher(ctx->derived_integ_key);
-out_err_free_key1:
- crypto_free_blkcipher(ctx->derived_conf_key);
-out_err_free_s_key:
- kfree(ctx->share_key.data);
+out_err_free_intg_key:
+ kfree(ctx->derived_integ_key.data);
+out_err_free_intg_alg:
+ kfree(ctx->intg_alg.data);
+out_err_free_conf_key:
+ kfree(ctx->derived_conf_key.data);
+out_err_free_conf_alg:
+ kfree(ctx->conf_alg.data);
out_err_free_mech:
kfree(ctx->mech_used.data);
out_err_free_ctx_id:
@@ -220,13 +160,16 @@ out_err:
}
static void
-gss_delete_sec_context_spkm3(void *internal_ctx) {
+gss_delete_sec_context_spkm3(void *internal_ctx)
+{
struct spkm3_ctx *sctx = internal_ctx;
- crypto_free_blkcipher(sctx->derived_integ_key);
- crypto_free_blkcipher(sctx->derived_conf_key);
- kfree(sctx->share_key.data);
+ kfree(sctx->derived_integ_key.data);
+ kfree(sctx->intg_alg.data);
+ kfree(sctx->derived_conf_key.data);
+ kfree(sctx->conf_alg.data);
kfree(sctx->mech_used.data);
+ kfree(sctx->ctx_id.data);
kfree(sctx);
}
@@ -238,7 +181,6 @@ gss_verify_mic_spkm3(struct gss_ctx *ctx,
u32 maj_stat = 0;
struct spkm3_ctx *sctx = ctx->internal_ctx_id;
- dprintk("RPC: gss_verify_mic_spkm3 calling spkm3_read_token\n");
maj_stat = spkm3_read_token(sctx, checksum, signbuf, SPKM_MIC_TOK);
dprintk("RPC: gss_verify_mic_spkm3 returning %d\n", maj_stat);
@@ -253,10 +195,9 @@ gss_get_mic_spkm3(struct gss_ctx *ctx,
u32 err = 0;
struct spkm3_ctx *sctx = ctx->internal_ctx_id;
- dprintk("RPC: gss_get_mic_spkm3\n");
-
err = spkm3_make_token(sctx, message_buffer,
- message_token, SPKM_MIC_TOK);
+ message_token, SPKM_MIC_TOK);
+ dprintk("RPC: gss_get_mic_spkm3 returning %d\n", err);
return err;
}
diff --git a/net/sunrpc/auth_gss/gss_spkm3_seal.c b/net/sunrpc/auth_gss/gss_spkm3_seal.c
index 18c7862bc23..b179d58c624 100644
--- a/net/sunrpc/auth_gss/gss_spkm3_seal.c
+++ b/net/sunrpc/auth_gss/gss_spkm3_seal.c
@@ -39,11 +39,17 @@
#include <linux/sunrpc/gss_spkm3.h>
#include <linux/random.h>
#include <linux/crypto.h>
+#include <linux/pagemap.h>
+#include <linux/scatterlist.h>
+#include <linux/sunrpc/xdr.h>
#ifdef RPC_DEBUG
# define RPCDBG_FACILITY RPCDBG_AUTH
#endif
+const struct xdr_netobj hmac_md5_oid = { 8, "\x2B\x06\x01\x05\x05\x08\x01\x01"};
+const struct xdr_netobj cast5_cbc_oid = {9, "\x2A\x86\x48\x86\xF6\x7D\x07\x42\x0A"};
+
/*
* spkm3_make_token()
*
@@ -66,29 +72,23 @@ spkm3_make_token(struct spkm3_ctx *ctx,
int ctxelen = 0, ctxzbit = 0;
int md5elen = 0, md5zbit = 0;
- dprintk("RPC: spkm3_make_token\n");
-
now = jiffies;
if (ctx->ctx_id.len != 16) {
dprintk("RPC: spkm3_make_token BAD ctx_id.len %d\n",
- ctx->ctx_id.len);
+ ctx->ctx_id.len);
goto out_err;
}
-
- switch (ctx->intg_alg) {
- case NID_md5:
- checksum_type = CKSUMTYPE_RSA_MD5;
- break;
- default:
- dprintk("RPC: gss_spkm3_seal: ctx->signalg %d not"
- " supported\n", ctx->intg_alg);
- goto out_err;
- }
- /* XXX since we don't support WRAP, perhaps we don't care... */
- if (ctx->conf_alg != NID_cast5_cbc) {
- dprintk("RPC: gss_spkm3_seal: ctx->sealalg %d not supported\n",
- ctx->conf_alg);
+
+ if (!g_OID_equal(&ctx->intg_alg, &hmac_md5_oid)) {
+ dprintk("RPC: gss_spkm3_seal: unsupported I-ALG algorithm."
+ "only support hmac-md5 I-ALG.\n");
+ goto out_err;
+ } else
+ checksum_type = CKSUMTYPE_HMAC_MD5;
+
+ if (!g_OID_equal(&ctx->conf_alg, &cast5_cbc_oid)) {
+ dprintk("RPC: gss_spkm3_seal: unsupported C-ALG algorithm\n");
goto out_err;
}
@@ -96,10 +96,10 @@ spkm3_make_token(struct spkm3_ctx *ctx,
/* Calculate checksum over the mic-header */
asn1_bitstring_len(&ctx->ctx_id, &ctxelen, &ctxzbit);
spkm3_mic_header(&mic_hdr.data, &mic_hdr.len, ctx->ctx_id.data,
- ctxelen, ctxzbit);
-
- if (make_checksum(checksum_type, mic_hdr.data, mic_hdr.len,
- text, 0, &md5cksum))
+ ctxelen, ctxzbit);
+ if (make_spkm3_checksum(checksum_type, &ctx->derived_integ_key,
+ (char *)mic_hdr.data, mic_hdr.len,
+ text, 0, &md5cksum))
goto out_err;
asn1_bitstring_len(&md5cksum, &md5elen, &md5zbit);
@@ -121,7 +121,66 @@ spkm3_make_token(struct spkm3_ctx *ctx,
return GSS_S_COMPLETE;
out_err:
+ if (md5cksum.data)
+ kfree(md5cksum.data);
+
token->data = NULL;
token->len = 0;
return GSS_S_FAILURE;
}
+
+static int
+spkm3_checksummer(struct scatterlist *sg, void *data)
+{
+ struct hash_desc *desc = data;
+
+ return crypto_hash_update(desc, sg, sg->length);
+}
+
+/* checksum the plaintext data and hdrlen bytes of the token header */
+s32
+make_spkm3_checksum(s32 cksumtype, struct xdr_netobj *key, char *header,
+ unsigned int hdrlen, struct xdr_buf *body,
+ unsigned int body_offset, struct xdr_netobj *cksum)
+{
+ char *cksumname;
+ struct hash_desc desc; /* XXX add to ctx? */
+ struct scatterlist sg[1];
+ int err;
+
+ switch (cksumtype) {
+ case CKSUMTYPE_HMAC_MD5:
+ cksumname = "md5";
+ break;
+ default:
+ dprintk("RPC: spkm3_make_checksum:"
+ " unsupported checksum %d", cksumtype);
+ return GSS_S_FAILURE;
+ }
+
+ if (key->data == NULL || key->len <= 0) return GSS_S_FAILURE;
+
+ desc.tfm = crypto_alloc_hash(cksumname, 0, CRYPTO_ALG_ASYNC);
+ if (IS_ERR(desc.tfm))
+ return GSS_S_FAILURE;
+ cksum->len = crypto_hash_digestsize(desc.tfm);
+ desc.flags = CRYPTO_TFM_REQ_MAY_SLEEP;
+
+ err = crypto_hash_setkey(desc.tfm, key->data, key->len);
+ if (err)
+ goto out;
+
+ sg_set_buf(sg, header, hdrlen);
+ crypto_hash_update(&desc, sg, 1);
+
+ xdr_process_buf(body, body_offset, body->len - body_offset,
+ spkm3_checksummer, &desc);
+ crypto_hash_final(&desc, cksum->data);
+
+out:
+ crypto_free_hash(desc.tfm);
+
+ return err ? GSS_S_FAILURE : 0;
+}
+
+EXPORT_SYMBOL(make_spkm3_checksum);
diff --git a/net/sunrpc/auth_gss/gss_spkm3_token.c b/net/sunrpc/auth_gss/gss_spkm3_token.c
index 854a983ccf2..35188b6ea8f 100644
--- a/net/sunrpc/auth_gss/gss_spkm3_token.c
+++ b/net/sunrpc/auth_gss/gss_spkm3_token.c
@@ -172,10 +172,10 @@ spkm3_mic_header(unsigned char **hdrbuf, unsigned int *hdrlen, unsigned char *ct
*(u8 *)hptr++ = zbit;
memcpy(hptr, ctxdata, elen);
hptr += elen;
- *hdrlen = hptr - top;
+ *hdrlen = hptr - top;
}
-
-/*
+
+/*
* spkm3_mic_innercontext_token()
*
* *tokp points to the beginning of the SPKM_MIC token described
diff --git a/net/sunrpc/auth_gss/gss_spkm3_unseal.c b/net/sunrpc/auth_gss/gss_spkm3_unseal.c
index 8537f581ef9..e54581ca757 100644
--- a/net/sunrpc/auth_gss/gss_spkm3_unseal.c
+++ b/net/sunrpc/auth_gss/gss_spkm3_unseal.c
@@ -54,70 +54,70 @@ spkm3_read_token(struct spkm3_ctx *ctx,
struct xdr_buf *message_buffer, /* signbuf */
int toktype)
{
+ s32 checksum_type;
s32 code;
struct xdr_netobj wire_cksum = {.len =0, .data = NULL};
char cksumdata[16];
struct xdr_netobj md5cksum = {.len = 0, .data = cksumdata};
unsigned char *ptr = (unsigned char *)read_token->data;
- unsigned char *cksum;
+ unsigned char *cksum;
int bodysize, md5elen;
int mic_hdrlen;
u32 ret = GSS_S_DEFECTIVE_TOKEN;
- dprintk("RPC: spkm3_read_token read_token->len %d\n", read_token->len);
-
if (g_verify_token_header((struct xdr_netobj *) &ctx->mech_used,
&bodysize, &ptr, read_token->len))
goto out;
/* decode the token */
- if (toktype == SPKM_MIC_TOK) {
-
- if ((ret = spkm3_verify_mic_token(&ptr, &mic_hdrlen, &cksum)))
- goto out;
-
- if (*cksum++ != 0x03) {
- dprintk("RPC: spkm3_read_token BAD checksum type\n");
- goto out;
- }
- md5elen = *cksum++;
- cksum++; /* move past the zbit */
-
- if(!decode_asn1_bitstring(&wire_cksum, cksum, md5elen - 1, 16))
- goto out;
-
- /* HARD CODED FOR MD5 */
-
- /* compute the checksum of the message.
- * ptr + 2 = start of header piece of checksum
- * mic_hdrlen + 2 = length of header piece of checksum
- */
- ret = GSS_S_DEFECTIVE_TOKEN;
- code = make_checksum(CKSUMTYPE_RSA_MD5, ptr + 2,
- mic_hdrlen + 2,
- message_buffer, 0, &md5cksum);
-
- if (code)
- goto out;
-
- dprintk("RPC: spkm3_read_token: digest wire_cksum.len %d:\n",
- wire_cksum.len);
- dprintk(" md5cksum.data\n");
- print_hexl((u32 *) md5cksum.data, 16, 0);
- dprintk(" cksum.data:\n");
- print_hexl((u32 *) wire_cksum.data, wire_cksum.len, 0);
-
- ret = GSS_S_BAD_SIG;
- code = memcmp(md5cksum.data, wire_cksum.data, wire_cksum.len);
- if (code)
- goto out;
-
- } else {
- dprintk("RPC: BAD or UNSUPPORTED SPKM3 token type: %d\n",toktype);
+ if (toktype != SPKM_MIC_TOK) {
+ dprintk("RPC: BAD SPKM3 token type: %d\n", toktype);
+ goto out;
+ }
+
+ if ((ret = spkm3_verify_mic_token(&ptr, &mic_hdrlen, &cksum)))
+ goto out;
+
+ if (*cksum++ != 0x03) {
+ dprintk("RPC: spkm3_read_token BAD checksum type\n");
+ goto out;
+ }
+ md5elen = *cksum++;
+ cksum++; /* move past the zbit */
+
+ if (!decode_asn1_bitstring(&wire_cksum, cksum, md5elen - 1, 16))
+ goto out;
+
+ /* HARD CODED FOR MD5 */
+
+ /* compute the checksum of the message.
+ * ptr + 2 = start of header piece of checksum
+ * mic_hdrlen + 2 = length of header piece of checksum
+ */
+ ret = GSS_S_DEFECTIVE_TOKEN;
+ if (!g_OID_equal(&ctx->intg_alg, &hmac_md5_oid)) {
+ dprintk("RPC: gss_spkm3_seal: unsupported I-ALG algorithm\n");
+ goto out;
+ }
+
+ checksum_type = CKSUMTYPE_HMAC_MD5;
+
+ code = make_spkm3_checksum(checksum_type,
+ &ctx->derived_integ_key, ptr + 2, mic_hdrlen + 2,
+ message_buffer, 0, &md5cksum);
+
+ if (code)
+ goto out;
+
+ ret = GSS_S_BAD_SIG;
+ code = memcmp(md5cksum.data, wire_cksum.data, wire_cksum.len);
+ if (code) {
+ dprintk("RPC: bad MIC checksum\n");
goto out;
}
+
/* XXX: need to add expiration and sequencing */
ret = GSS_S_COMPLETE;
out:
diff --git a/net/sunrpc/clnt.c b/net/sunrpc/clnt.c
index dfeea4fea95..aba528b9ae7 100644
--- a/net/sunrpc/clnt.c
+++ b/net/sunrpc/clnt.c
@@ -27,6 +27,7 @@
#include <linux/types.h>
#include <linux/mm.h>
#include <linux/slab.h>
+#include <linux/smp_lock.h>
#include <linux/utsname.h>
#include <linux/workqueue.h>
@@ -141,6 +142,10 @@ static struct rpc_clnt * rpc_new_client(struct rpc_xprt *xprt, char *servname, s
clnt->cl_vers = version->number;
clnt->cl_stats = program->stats;
clnt->cl_metrics = rpc_alloc_iostats(clnt);
+ err = -ENOMEM;
+ if (clnt->cl_metrics == NULL)
+ goto out_no_stats;
+ clnt->cl_program = program;
if (!xprt_bound(clnt->cl_xprt))
clnt->cl_autobind = 1;
@@ -173,6 +178,8 @@ out_no_auth:
rpc_put_mount();
}
out_no_path:
+ rpc_free_iostats(clnt->cl_metrics);
+out_no_stats:
if (clnt->cl_server != clnt->cl_inline_name)
kfree(clnt->cl_server);
kfree(clnt);
@@ -252,12 +259,19 @@ struct rpc_clnt *
rpc_clone_client(struct rpc_clnt *clnt)
{
struct rpc_clnt *new;
+ int err = -ENOMEM;
new = kmemdup(clnt, sizeof(*new), GFP_KERNEL);
if (!new)
goto out_no_clnt;
atomic_set(&new->cl_count, 1);
atomic_set(&new->cl_users, 0);
+ new->cl_metrics = rpc_alloc_iostats(clnt);
+ if (new->cl_metrics == NULL)
+ goto out_no_stats;
+ err = rpc_setup_pipedir(new, clnt->cl_program->pipe_dir_name);
+ if (err != 0)
+ goto out_no_path;
new->cl_parent = clnt;
atomic_inc(&clnt->cl_count);
new->cl_xprt = xprt_get(clnt->cl_xprt);
@@ -265,16 +279,17 @@ rpc_clone_client(struct rpc_clnt *clnt)
new->cl_autobind = 0;
new->cl_oneshot = 0;
new->cl_dead = 0;
- if (!IS_ERR(new->cl_dentry))
- dget(new->cl_dentry);
rpc_init_rtt(&new->cl_rtt_default, clnt->cl_xprt->timeout.to_initval);
if (new->cl_auth)
atomic_inc(&new->cl_auth->au_count);
- new->cl_metrics = rpc_alloc_iostats(clnt);
return new;
+out_no_path:
+ rpc_free_iostats(new->cl_metrics);
+out_no_stats:
+ kfree(new);
out_no_clnt:
- printk(KERN_INFO "RPC: out of memory in %s\n", __FUNCTION__);
- return ERR_PTR(-ENOMEM);
+ dprintk("RPC: %s returned error %d\n", __FUNCTION__, err);
+ return ERR_PTR(err);
}
/*
@@ -327,16 +342,14 @@ rpc_destroy_client(struct rpc_clnt *clnt)
rpcauth_destroy(clnt->cl_auth);
clnt->cl_auth = NULL;
}
- if (clnt->cl_parent != clnt) {
- if (!IS_ERR(clnt->cl_dentry))
- dput(clnt->cl_dentry);
- rpc_destroy_client(clnt->cl_parent);
- goto out_free;
- }
if (!IS_ERR(clnt->cl_dentry)) {
rpc_rmdir(clnt->cl_dentry);
rpc_put_mount();
}
+ if (clnt->cl_parent != clnt) {
+ rpc_destroy_client(clnt->cl_parent);
+ goto out_free;
+ }
if (clnt->cl_server != clnt->cl_inline_name)
kfree(clnt->cl_server);
out_free:
@@ -466,10 +479,9 @@ int rpc_call_sync(struct rpc_clnt *clnt, struct rpc_message *msg, int flags)
BUG_ON(flags & RPC_TASK_ASYNC);
- status = -ENOMEM;
task = rpc_new_task(clnt, flags, &rpc_default_ops, NULL);
if (task == NULL)
- goto out;
+ return -ENOMEM;
/* Mask signals on RPC calls _and_ GSS_AUTH upcalls */
rpc_task_sigmask(task, &oldset);
@@ -478,15 +490,17 @@ int rpc_call_sync(struct rpc_clnt *clnt, struct rpc_message *msg, int flags)
/* Set up the call info struct and execute the task */
status = task->tk_status;
- if (status == 0) {
- atomic_inc(&task->tk_count);
- status = rpc_execute(task);
- if (status == 0)
- status = task->tk_status;
+ if (status != 0) {
+ rpc_release_task(task);
+ goto out;
}
- rpc_restore_sigmask(&oldset);
- rpc_release_task(task);
+ atomic_inc(&task->tk_count);
+ status = rpc_execute(task);
+ if (status == 0)
+ status = task->tk_status;
+ rpc_put_task(task);
out:
+ rpc_restore_sigmask(&oldset);
return status;
}
@@ -528,8 +542,7 @@ rpc_call_async(struct rpc_clnt *clnt, struct rpc_message *msg, int flags,
rpc_restore_sigmask(&oldset);
return status;
out_release:
- if (tk_ops->rpc_release != NULL)
- tk_ops->rpc_release(data);
+ rpc_release_calldata(tk_ops, data);
return status;
}
@@ -581,7 +594,11 @@ EXPORT_SYMBOL_GPL(rpc_peeraddr);
char *rpc_peeraddr2str(struct rpc_clnt *clnt, enum rpc_display_format_t format)
{
struct rpc_xprt *xprt = clnt->cl_xprt;
- return xprt->ops->print_addr(xprt, format);
+
+ if (xprt->address_strings[format] != NULL)
+ return xprt->address_strings[format];
+ else
+ return "unprintable";
}
EXPORT_SYMBOL_GPL(rpc_peeraddr2str);
@@ -811,8 +828,10 @@ call_encode(struct rpc_task *task)
if (encode == NULL)
return;
+ lock_kernel();
task->tk_status = rpcauth_wrap_req(task, encode, req, p,
task->tk_msg.rpc_argp);
+ unlock_kernel();
if (task->tk_status == -ENOMEM) {
/* XXX: Is this sane? */
rpc_delay(task, 3*HZ);
@@ -1143,9 +1162,12 @@ call_decode(struct rpc_task *task)
task->tk_action = rpc_exit_task;
- if (decode)
+ if (decode) {
+ lock_kernel();
task->tk_status = rpcauth_unwrap_resp(task, decode, req, p,
task->tk_msg.rpc_resp);
+ unlock_kernel();
+ }
dprintk("RPC: %4d call_decode result %d\n", task->tk_pid,
task->tk_status);
return;
diff --git a/net/sunrpc/pmap_clnt.c b/net/sunrpc/pmap_clnt.c
index e52afab413d..3946ec3eb51 100644
--- a/net/sunrpc/pmap_clnt.c
+++ b/net/sunrpc/pmap_clnt.c
@@ -101,14 +101,14 @@ void rpc_getport(struct rpc_task *task)
/* Autobind on cloned rpc clients is discouraged */
BUG_ON(clnt->cl_parent != clnt);
+ status = -EACCES; /* tell caller to check again */
+ if (xprt_test_and_set_binding(xprt))
+ goto bailout_nowake;
+
/* Put self on queue before sending rpcbind request, in case
* pmap_getport_done completes before we return from rpc_run_task */
rpc_sleep_on(&xprt->binding, task, NULL, NULL);
- status = -EACCES; /* tell caller to check again */
- if (xprt_test_and_set_binding(xprt))
- goto bailout_nofree;
-
/* Someone else may have bound if we slept */
status = 0;
if (xprt_bound(xprt))
@@ -134,7 +134,7 @@ void rpc_getport(struct rpc_task *task)
child = rpc_run_task(pmap_clnt, RPC_TASK_ASYNC, &pmap_getport_ops, map);
if (IS_ERR(child))
goto bailout;
- rpc_release_task(child);
+ rpc_put_task(child);
task->tk_xprt->stat.bind_count++;
return;
@@ -143,8 +143,9 @@ bailout:
pmap_map_free(map);
xprt_put(xprt);
bailout_nofree:
- task->tk_status = status;
pmap_wake_portmap_waiters(xprt, status);
+bailout_nowake:
+ task->tk_status = status;
}
#ifdef CONFIG_ROOT_NFS
diff --git a/net/sunrpc/sched.c b/net/sunrpc/sched.c
index 225e6510b52..79bc4cdf5d4 100644
--- a/net/sunrpc/sched.c
+++ b/net/sunrpc/sched.c
@@ -266,12 +266,28 @@ static int rpc_wait_bit_interruptible(void *word)
return 0;
}
+static void rpc_set_active(struct rpc_task *task)
+{
+ if (test_and_set_bit(RPC_TASK_ACTIVE, &task->tk_runstate) != 0)
+ return;
+ spin_lock(&rpc_sched_lock);
+#ifdef RPC_DEBUG
+ task->tk_magic = RPC_TASK_MAGIC_ID;
+ task->tk_pid = rpc_task_id++;
+#endif
+ /* Add to global list of all tasks */
+ list_add_tail(&task->tk_task, &all_tasks);
+ spin_unlock(&rpc_sched_lock);
+}
+
/*
* Mark an RPC call as having completed by clearing the 'active' bit
*/
-static inline void rpc_mark_complete_task(struct rpc_task *task)
+static void rpc_mark_complete_task(struct rpc_task *task)
{
- rpc_clear_active(task);
+ smp_mb__before_clear_bit();
+ clear_bit(RPC_TASK_ACTIVE, &task->tk_runstate);
+ smp_mb__after_clear_bit();
wake_up_bit(&task->tk_runstate, RPC_TASK_ACTIVE);
}
@@ -295,13 +311,15 @@ EXPORT_SYMBOL(__rpc_wait_for_completion_task);
*/
static void rpc_make_runnable(struct rpc_task *task)
{
- int do_ret;
-
BUG_ON(task->tk_timeout_fn);
- do_ret = rpc_test_and_set_running(task);
rpc_clear_queued(task);
- if (do_ret)
+ if (rpc_test_and_set_running(task))
return;
+ /* We might have raced */
+ if (RPC_IS_QUEUED(task)) {
+ rpc_clear_running(task);
+ return;
+ }
if (RPC_IS_ASYNC(task)) {
int status;
@@ -333,9 +351,6 @@ static void __rpc_sleep_on(struct rpc_wait_queue *q, struct rpc_task *task,
return;
}
- /* Mark the task as being activated if so needed */
- rpc_set_active(task);
-
__rpc_add_wait_queue(q, task);
BUG_ON(task->tk_callback != NULL);
@@ -346,6 +361,9 @@ static void __rpc_sleep_on(struct rpc_wait_queue *q, struct rpc_task *task,
void rpc_sleep_on(struct rpc_wait_queue *q, struct rpc_task *task,
rpc_action action, rpc_action timer)
{
+ /* Mark the task as being activated if so needed */
+ rpc_set_active(task);
+
/*
* Protect the queue operations.
*/
@@ -409,16 +427,19 @@ __rpc_default_timer(struct rpc_task *task)
*/
void rpc_wake_up_task(struct rpc_task *task)
{
+ rcu_read_lock_bh();
if (rpc_start_wakeup(task)) {
if (RPC_IS_QUEUED(task)) {
struct rpc_wait_queue *queue = task->u.tk_wait.rpc_waitq;
- spin_lock_bh(&queue->lock);
+ /* Note: we're already in a bh-safe context */
+ spin_lock(&queue->lock);
__rpc_do_wake_up_task(task);
- spin_unlock_bh(&queue->lock);
+ spin_unlock(&queue->lock);
}
rpc_finish_wakeup(task);
}
+ rcu_read_unlock_bh();
}
/*
@@ -481,14 +502,16 @@ struct rpc_task * rpc_wake_up_next(struct rpc_wait_queue *queue)
struct rpc_task *task = NULL;
dprintk("RPC: wake_up_next(%p \"%s\")\n", queue, rpc_qname(queue));
- spin_lock_bh(&queue->lock);
+ rcu_read_lock_bh();
+ spin_lock(&queue->lock);
if (RPC_IS_PRIORITY(queue))
task = __rpc_wake_up_next_priority(queue);
else {
task_for_first(task, &queue->tasks[0])
__rpc_wake_up_task(task);
}
- spin_unlock_bh(&queue->lock);
+ spin_unlock(&queue->lock);
+ rcu_read_unlock_bh();
return task;
}
@@ -504,7 +527,8 @@ void rpc_wake_up(struct rpc_wait_queue *queue)
struct rpc_task *task, *next;
struct list_head *head;
- spin_lock_bh(&queue->lock);
+ rcu_read_lock_bh();
+ spin_lock(&queue->lock);
head = &queue->tasks[queue->maxpriority];
for (;;) {
list_for_each_entry_safe(task, next, head, u.tk_wait.list)
@@ -513,7 +537,8 @@ void rpc_wake_up(struct rpc_wait_queue *queue)
break;
head--;
}
- spin_unlock_bh(&queue->lock);
+ spin_unlock(&queue->lock);
+ rcu_read_unlock_bh();
}
/**
@@ -528,7 +553,8 @@ void rpc_wake_up_status(struct rpc_wait_queue *queue, int status)
struct rpc_task *task, *next;
struct list_head *head;
- spin_lock_bh(&queue->lock);
+ rcu_read_lock_bh();
+ spin_lock(&queue->lock);
head = &queue->tasks[queue->maxpriority];
for (;;) {
list_for_each_entry_safe(task, next, head, u.tk_wait.list) {
@@ -539,7 +565,8 @@ void rpc_wake_up_status(struct rpc_wait_queue *queue, int status)
break;
head--;
}
- spin_unlock_bh(&queue->lock);
+ spin_unlock(&queue->lock);
+ rcu_read_unlock_bh();
}
static void __rpc_atrun(struct rpc_task *task)
@@ -561,7 +588,9 @@ void rpc_delay(struct rpc_task *task, unsigned long delay)
*/
static void rpc_prepare_task(struct rpc_task *task)
{
+ lock_kernel();
task->tk_ops->rpc_call_prepare(task, task->tk_calldata);
+ unlock_kernel();
}
/*
@@ -571,7 +600,9 @@ void rpc_exit_task(struct rpc_task *task)
{
task->tk_action = NULL;
if (task->tk_ops->rpc_call_done != NULL) {
+ lock_kernel();
task->tk_ops->rpc_call_done(task, task->tk_calldata);
+ unlock_kernel();
if (task->tk_action != NULL) {
WARN_ON(RPC_ASSASSINATED(task));
/* Always release the RPC slot and buffer memory */
@@ -581,6 +612,15 @@ void rpc_exit_task(struct rpc_task *task)
}
EXPORT_SYMBOL(rpc_exit_task);
+void rpc_release_calldata(const struct rpc_call_ops *ops, void *calldata)
+{
+ if (ops->rpc_release != NULL) {
+ lock_kernel();
+ ops->rpc_release(calldata);
+ unlock_kernel();
+ }
+}
+
/*
* This is the RPC `scheduler' (or rather, the finite state machine).
*/
@@ -615,9 +655,7 @@ static int __rpc_execute(struct rpc_task *task)
*/
save_callback=task->tk_callback;
task->tk_callback=NULL;
- lock_kernel();
save_callback(task);
- unlock_kernel();
}
/*
@@ -628,9 +666,7 @@ static int __rpc_execute(struct rpc_task *task)
if (!RPC_IS_QUEUED(task)) {
if (task->tk_action == NULL)
break;
- lock_kernel();
task->tk_action(task);
- unlock_kernel();
}
/*
@@ -671,8 +707,6 @@ static int __rpc_execute(struct rpc_task *task)
}
dprintk("RPC: %4d, return %d, status %d\n", task->tk_pid, status, task->tk_status);
- /* Wake up anyone who is waiting for task completion */
- rpc_mark_complete_task(task);
/* Release all resources associated with the task */
rpc_release_task(task);
return status;
@@ -786,15 +820,6 @@ void rpc_init_task(struct rpc_task *task, struct rpc_clnt *clnt, int flags, cons
task->tk_flags |= RPC_TASK_NOINTR;
}
-#ifdef RPC_DEBUG
- task->tk_magic = RPC_TASK_MAGIC_ID;
- task->tk_pid = rpc_task_id++;
-#endif
- /* Add to global list of all tasks */
- spin_lock(&rpc_sched_lock);
- list_add_tail(&task->tk_task, &all_tasks);
- spin_unlock(&rpc_sched_lock);
-
BUG_ON(task->tk_ops == NULL);
/* starting timestamp */
@@ -810,8 +835,9 @@ rpc_alloc_task(void)
return (struct rpc_task *)mempool_alloc(rpc_task_mempool, GFP_NOFS);
}
-static void rpc_free_task(struct rpc_task *task)
+static void rpc_free_task(struct rcu_head *rcu)
{
+ struct rpc_task *task = container_of(rcu, struct rpc_task, u.tk_rcu);
dprintk("RPC: %4d freeing task\n", task->tk_pid);
mempool_free(task, rpc_task_mempool);
}
@@ -847,16 +873,34 @@ cleanup:
goto out;
}
-void rpc_release_task(struct rpc_task *task)
+
+void rpc_put_task(struct rpc_task *task)
{
const struct rpc_call_ops *tk_ops = task->tk_ops;
void *calldata = task->tk_calldata;
+ if (!atomic_dec_and_test(&task->tk_count))
+ return;
+ /* Release resources */
+ if (task->tk_rqstp)
+ xprt_release(task);
+ if (task->tk_msg.rpc_cred)
+ rpcauth_unbindcred(task);
+ if (task->tk_client) {
+ rpc_release_client(task->tk_client);
+ task->tk_client = NULL;
+ }
+ if (task->tk_flags & RPC_TASK_DYNAMIC)
+ call_rcu_bh(&task->u.tk_rcu, rpc_free_task);
+ rpc_release_calldata(tk_ops, calldata);
+}
+EXPORT_SYMBOL(rpc_put_task);
+
+void rpc_release_task(struct rpc_task *task)
+{
#ifdef RPC_DEBUG
BUG_ON(task->tk_magic != RPC_TASK_MAGIC_ID);
#endif
- if (!atomic_dec_and_test(&task->tk_count))
- return;
dprintk("RPC: %4d release task\n", task->tk_pid);
/* Remove from global task list */
@@ -869,23 +913,13 @@ void rpc_release_task(struct rpc_task *task)
/* Synchronously delete any running timer */
rpc_delete_timer(task);
- /* Release resources */
- if (task->tk_rqstp)
- xprt_release(task);
- if (task->tk_msg.rpc_cred)
- rpcauth_unbindcred(task);
- if (task->tk_client) {
- rpc_release_client(task->tk_client);
- task->tk_client = NULL;
- }
-
#ifdef RPC_DEBUG
task->tk_magic = 0;
#endif
- if (task->tk_flags & RPC_TASK_DYNAMIC)
- rpc_free_task(task);
- if (tk_ops->rpc_release)
- tk_ops->rpc_release(calldata);
+ /* Wake up anyone who is waiting for task completion */
+ rpc_mark_complete_task(task);
+
+ rpc_put_task(task);
}
/**
@@ -902,8 +936,7 @@ struct rpc_task *rpc_run_task(struct rpc_clnt *clnt, int flags,
struct rpc_task *task;
task = rpc_new_task(clnt, flags, ops, data);
if (task == NULL) {
- if (ops->rpc_release != NULL)
- ops->rpc_release(data);
+ rpc_release_calldata(ops, data);
return ERR_PTR(-ENOMEM);
}
atomic_inc(&task->tk_count);
diff --git a/net/sunrpc/socklib.c b/net/sunrpc/socklib.c
index 2635c543ba0..634885b0c04 100644
--- a/net/sunrpc/socklib.c
+++ b/net/sunrpc/socklib.c
@@ -16,7 +16,7 @@
/**
- * skb_read_bits - copy some data bits from skb to internal buffer
+ * xdr_skb_read_bits - copy some data bits from skb to internal buffer
* @desc: sk_buff copy helper
* @to: copy destination
* @len: number of bytes to copy
@@ -24,11 +24,11 @@
* Possibly called several times to iterate over an sk_buff and copy
* data out of it.
*/
-static size_t skb_read_bits(skb_reader_t *desc, void *to, size_t len)
+size_t xdr_skb_read_bits(struct xdr_skb_reader *desc, void *to, size_t len)
{
if (len > desc->count)
len = desc->count;
- if (skb_copy_bits(desc->skb, desc->offset, to, len))
+ if (unlikely(skb_copy_bits(desc->skb, desc->offset, to, len)))
return 0;
desc->count -= len;
desc->offset += len;
@@ -36,14 +36,14 @@ static size_t skb_read_bits(skb_reader_t *desc, void *to, size_t len)
}
/**
- * skb_read_and_csum_bits - copy and checksum from skb to buffer
+ * xdr_skb_read_and_csum_bits - copy and checksum from skb to buffer
* @desc: sk_buff copy helper
* @to: copy destination
* @len: number of bytes to copy
*
* Same as skb_read_bits, but calculate a checksum at the same time.
*/
-static size_t skb_read_and_csum_bits(skb_reader_t *desc, void *to, size_t len)
+static size_t xdr_skb_read_and_csum_bits(struct xdr_skb_reader *desc, void *to, size_t len)
{
unsigned int pos;
__wsum csum2;
@@ -66,7 +66,7 @@ static size_t skb_read_and_csum_bits(skb_reader_t *desc, void *to, size_t len)
* @copy_actor: virtual method for copying data
*
*/
-ssize_t xdr_partial_copy_from_skb(struct xdr_buf *xdr, unsigned int base, skb_reader_t *desc, skb_read_actor_t copy_actor)
+ssize_t xdr_partial_copy_from_skb(struct xdr_buf *xdr, unsigned int base, struct xdr_skb_reader *desc, xdr_skb_read_actor copy_actor)
{
struct page **ppage = xdr->pages;
unsigned int len, pglen = xdr->page_len;
@@ -148,7 +148,7 @@ out:
*/
int csum_partial_copy_to_xdr(struct xdr_buf *xdr, struct sk_buff *skb)
{
- skb_reader_t desc;
+ struct xdr_skb_reader desc;
desc.skb = skb;
desc.offset = sizeof(struct udphdr);
@@ -158,7 +158,7 @@ int csum_partial_copy_to_xdr(struct xdr_buf *xdr, struct sk_buff *skb)
goto no_checksum;
desc.csum = csum_partial(skb->data, desc.offset, skb->csum);
- if (xdr_partial_copy_from_skb(xdr, 0, &desc, skb_read_and_csum_bits) < 0)
+ if (xdr_partial_copy_from_skb(xdr, 0, &desc, xdr_skb_read_and_csum_bits) < 0)
return -1;
if (desc.offset != skb->len) {
__wsum csum2;
@@ -173,7 +173,7 @@ int csum_partial_copy_to_xdr(struct xdr_buf *xdr, struct sk_buff *skb)
netdev_rx_csum_fault(skb->dev);
return 0;
no_checksum:
- if (xdr_partial_copy_from_skb(xdr, 0, &desc, skb_read_bits) < 0)
+ if (xdr_partial_copy_from_skb(xdr, 0, &desc, xdr_skb_read_bits) < 0)
return -1;
if (desc.count)
return -1;
diff --git a/net/sunrpc/sunrpc_syms.c b/net/sunrpc/sunrpc_syms.c
index 192dff5dabc..d85fddeb638 100644
--- a/net/sunrpc/sunrpc_syms.c
+++ b/net/sunrpc/sunrpc_syms.c
@@ -33,7 +33,6 @@ EXPORT_SYMBOL(rpciod_down);
EXPORT_SYMBOL(rpciod_up);
EXPORT_SYMBOL(rpc_new_task);
EXPORT_SYMBOL(rpc_wake_up_status);
-EXPORT_SYMBOL(rpc_release_task);
/* RPC client functions */
EXPORT_SYMBOL(rpc_clone_client);
@@ -139,6 +138,8 @@ EXPORT_SYMBOL(nlm_debug);
extern int register_rpc_pipefs(void);
extern void unregister_rpc_pipefs(void);
extern struct cache_detail ip_map_cache;
+extern int init_socket_xprt(void);
+extern void cleanup_socket_xprt(void);
static int __init
init_sunrpc(void)
@@ -156,6 +157,7 @@ init_sunrpc(void)
rpc_proc_init();
#endif
cache_register(&ip_map_cache);
+ init_socket_xprt();
out:
return err;
}
@@ -163,6 +165,7 @@ out:
static void __exit
cleanup_sunrpc(void)
{
+ cleanup_socket_xprt();
unregister_rpc_pipefs();
rpc_destroy_mempool();
if (cache_unregister(&ip_map_cache))
diff --git a/net/sunrpc/sysctl.c b/net/sunrpc/sysctl.c
index d89b048ad6b..82b27528d0c 100644
--- a/net/sunrpc/sysctl.c
+++ b/net/sunrpc/sysctl.c
@@ -18,7 +18,6 @@
#include <linux/sunrpc/types.h>
#include <linux/sunrpc/sched.h>
#include <linux/sunrpc/stats.h>
-#include <linux/sunrpc/xprt.h>
/*
* Declare the debug flags here
@@ -119,11 +118,6 @@ done:
}
-static unsigned int min_slot_table_size = RPC_MIN_SLOT_TABLE;
-static unsigned int max_slot_table_size = RPC_MAX_SLOT_TABLE;
-static unsigned int xprt_min_resvport_limit = RPC_MIN_RESVPORT;
-static unsigned int xprt_max_resvport_limit = RPC_MAX_RESVPORT;
-
static ctl_table debug_table[] = {
{
.ctl_name = CTL_RPCDEBUG,
@@ -157,50 +151,6 @@ static ctl_table debug_table[] = {
.mode = 0644,
.proc_handler = &proc_dodebug
},
- {
- .ctl_name = CTL_SLOTTABLE_UDP,
- .procname = "udp_slot_table_entries",
- .data = &xprt_udp_slot_table_entries,
- .maxlen = sizeof(unsigned int),
- .mode = 0644,
- .proc_handler = &proc_dointvec_minmax,
- .strategy = &sysctl_intvec,
- .extra1 = &min_slot_table_size,
- .extra2 = &max_slot_table_size
- },
- {
- .ctl_name = CTL_SLOTTABLE_TCP,
- .procname = "tcp_slot_table_entries",
- .data = &xprt_tcp_slot_table_entries,
- .maxlen = sizeof(unsigned int),
- .mode = 0644,
- .proc_handler = &proc_dointvec_minmax,
- .strategy = &sysctl_intvec,
- .extra1 = &min_slot_table_size,
- .extra2 = &max_slot_table_size
- },
- {
- .ctl_name = CTL_MIN_RESVPORT,
- .procname = "min_resvport",
- .data = &xprt_min_resvport,
- .maxlen = sizeof(unsigned int),
- .mode = 0644,
- .proc_handler = &proc_dointvec_minmax,
- .strategy = &sysctl_intvec,
- .extra1 = &xprt_min_resvport_limit,
- .extra2 = &xprt_max_resvport_limit
- },
- {
- .ctl_name = CTL_MAX_RESVPORT,
- .procname = "max_resvport",
- .data = &xprt_max_resvport,
- .maxlen = sizeof(unsigned int),
- .mode = 0644,
- .proc_handler = &proc_dointvec_minmax,
- .strategy = &sysctl_intvec,
- .extra1 = &xprt_min_resvport_limit,
- .extra2 = &xprt_max_resvport_limit
- },
{ .ctl_name = 0 }
};
diff --git a/net/sunrpc/xdr.c b/net/sunrpc/xdr.c
index 9022eb8b37e..a0af250ca31 100644
--- a/net/sunrpc/xdr.c
+++ b/net/sunrpc/xdr.c
@@ -640,41 +640,30 @@ xdr_buf_from_iov(struct kvec *iov, struct xdr_buf *buf)
buf->buflen = buf->len = iov->iov_len;
}
-/* Sets subiov to the intersection of iov with the buffer of length len
- * starting base bytes after iov. Indicates empty intersection by setting
- * length of subiov to zero. Decrements len by length of subiov, sets base
- * to zero (or decrements it by length of iov if subiov is empty). */
-static void
-iov_subsegment(struct kvec *iov, struct kvec *subiov, int *base, int *len)
-{
- if (*base > iov->iov_len) {
- subiov->iov_base = NULL;
- subiov->iov_len = 0;
- *base -= iov->iov_len;
- } else {
- subiov->iov_base = iov->iov_base + *base;
- subiov->iov_len = min(*len, (int)iov->iov_len - *base);
- *base = 0;
- }
- *len -= subiov->iov_len;
-}
-
/* Sets subbuf to the portion of buf of length len beginning base bytes
* from the start of buf. Returns -1 if base of length are out of bounds. */
int
xdr_buf_subsegment(struct xdr_buf *buf, struct xdr_buf *subbuf,
- int base, int len)
+ unsigned int base, unsigned int len)
{
- int i;
-
subbuf->buflen = subbuf->len = len;
- iov_subsegment(buf->head, subbuf->head, &base, &len);
+ if (base < buf->head[0].iov_len) {
+ subbuf->head[0].iov_base = buf->head[0].iov_base + base;
+ subbuf->head[0].iov_len = min_t(unsigned int, len,
+ buf->head[0].iov_len - base);
+ len -= subbuf->head[0].iov_len;
+ base = 0;
+ } else {
+ subbuf->head[0].iov_base = NULL;
+ subbuf->head[0].iov_len = 0;
+ base -= buf->head[0].iov_len;
+ }
if (base < buf->page_len) {
- i = (base + buf->page_base) >> PAGE_CACHE_SHIFT;
- subbuf->pages = &buf->pages[i];
- subbuf->page_base = (base + buf->page_base) & ~PAGE_CACHE_MASK;
- subbuf->page_len = min((int)buf->page_len - base, len);
+ subbuf->page_len = min(buf->page_len - base, len);
+ base += buf->page_base;
+ subbuf->page_base = base & ~PAGE_CACHE_MASK;
+ subbuf->pages = &buf->pages[base >> PAGE_CACHE_SHIFT];
len -= subbuf->page_len;
base = 0;
} else {
@@ -682,66 +671,85 @@ xdr_buf_subsegment(struct xdr_buf *buf, struct xdr_buf *subbuf,
subbuf->page_len = 0;
}
- iov_subsegment(buf->tail, subbuf->tail, &base, &len);
+ if (base < buf->tail[0].iov_len) {
+ subbuf->tail[0].iov_base = buf->tail[0].iov_base + base;
+ subbuf->tail[0].iov_len = min_t(unsigned int, len,
+ buf->tail[0].iov_len - base);
+ len -= subbuf->tail[0].iov_len;
+ base = 0;
+ } else {
+ subbuf->tail[0].iov_base = NULL;
+ subbuf->tail[0].iov_len = 0;
+ base -= buf->tail[0].iov_len;
+ }
+
if (base || len)
return -1;
return 0;
}
-/* obj is assumed to point to allocated memory of size at least len: */
-int
-read_bytes_from_xdr_buf(struct xdr_buf *buf, int base, void *obj, int len)
+static void __read_bytes_from_xdr_buf(struct xdr_buf *subbuf, void *obj, unsigned int len)
{
- struct xdr_buf subbuf;
- int this_len;
- int status;
+ unsigned int this_len;
- status = xdr_buf_subsegment(buf, &subbuf, base, len);
- if (status)
- goto out;
- this_len = min(len, (int)subbuf.head[0].iov_len);
- memcpy(obj, subbuf.head[0].iov_base, this_len);
+ this_len = min_t(unsigned int, len, subbuf->head[0].iov_len);
+ memcpy(obj, subbuf->head[0].iov_base, this_len);
len -= this_len;
obj += this_len;
- this_len = min(len, (int)subbuf.page_len);
+ this_len = min_t(unsigned int, len, subbuf->page_len);
if (this_len)
- _copy_from_pages(obj, subbuf.pages, subbuf.page_base, this_len);
+ _copy_from_pages(obj, subbuf->pages, subbuf->page_base, this_len);
len -= this_len;
obj += this_len;
- this_len = min(len, (int)subbuf.tail[0].iov_len);
- memcpy(obj, subbuf.tail[0].iov_base, this_len);
-out:
- return status;
+ this_len = min_t(unsigned int, len, subbuf->tail[0].iov_len);
+ memcpy(obj, subbuf->tail[0].iov_base, this_len);
}
/* obj is assumed to point to allocated memory of size at least len: */
-int
-write_bytes_to_xdr_buf(struct xdr_buf *buf, int base, void *obj, int len)
+int read_bytes_from_xdr_buf(struct xdr_buf *buf, unsigned int base, void *obj, unsigned int len)
{
struct xdr_buf subbuf;
- int this_len;
int status;
status = xdr_buf_subsegment(buf, &subbuf, base, len);
- if (status)
- goto out;
- this_len = min(len, (int)subbuf.head[0].iov_len);
- memcpy(subbuf.head[0].iov_base, obj, this_len);
+ if (status != 0)
+ return status;
+ __read_bytes_from_xdr_buf(&subbuf, obj, len);
+ return 0;
+}
+
+static void __write_bytes_to_xdr_buf(struct xdr_buf *subbuf, void *obj, unsigned int len)
+{
+ unsigned int this_len;
+
+ this_len = min_t(unsigned int, len, subbuf->head[0].iov_len);
+ memcpy(subbuf->head[0].iov_base, obj, this_len);
len -= this_len;
obj += this_len;
- this_len = min(len, (int)subbuf.page_len);
+ this_len = min_t(unsigned int, len, subbuf->page_len);
if (this_len)
- _copy_to_pages(subbuf.pages, subbuf.page_base, obj, this_len);
+ _copy_to_pages(subbuf->pages, subbuf->page_base, obj, this_len);
len -= this_len;
obj += this_len;
- this_len = min(len, (int)subbuf.tail[0].iov_len);
- memcpy(subbuf.tail[0].iov_base, obj, this_len);
-out:
- return status;
+ this_len = min_t(unsigned int, len, subbuf->tail[0].iov_len);
+ memcpy(subbuf->tail[0].iov_base, obj, this_len);
+}
+
+/* obj is assumed to point to allocated memory of size at least len: */
+int write_bytes_to_xdr_buf(struct xdr_buf *buf, unsigned int base, void *obj, unsigned int len)
+{
+ struct xdr_buf subbuf;
+ int status;
+
+ status = xdr_buf_subsegment(buf, &subbuf, base, len);
+ if (status != 0)
+ return status;
+ __write_bytes_to_xdr_buf(&subbuf, obj, len);
+ return 0;
}
int
-xdr_decode_word(struct xdr_buf *buf, int base, u32 *obj)
+xdr_decode_word(struct xdr_buf *buf, unsigned int base, u32 *obj)
{
__be32 raw;
int status;
@@ -754,7 +762,7 @@ xdr_decode_word(struct xdr_buf *buf, int base, u32 *obj)
}
int
-xdr_encode_word(struct xdr_buf *buf, int base, u32 obj)
+xdr_encode_word(struct xdr_buf *buf, unsigned int base, u32 obj)
{
__be32 raw = htonl(obj);
@@ -765,44 +773,37 @@ xdr_encode_word(struct xdr_buf *buf, int base, u32 obj)
* entirely in the head or the tail, set object to point to it; otherwise
* try to find space for it at the end of the tail, copy it there, and
* set obj to point to it. */
-int
-xdr_buf_read_netobj(struct xdr_buf *buf, struct xdr_netobj *obj, int offset)
+int xdr_buf_read_netobj(struct xdr_buf *buf, struct xdr_netobj *obj, unsigned int offset)
{
- u32 tail_offset = buf->head[0].iov_len + buf->page_len;
- u32 obj_end_offset;
+ struct xdr_buf subbuf;
if (xdr_decode_word(buf, offset, &obj->len))
- goto out;
- obj_end_offset = offset + 4 + obj->len;
-
- if (obj_end_offset <= buf->head[0].iov_len) {
- /* The obj is contained entirely in the head: */
- obj->data = buf->head[0].iov_base + offset + 4;
- } else if (offset + 4 >= tail_offset) {
- if (obj_end_offset - tail_offset
- > buf->tail[0].iov_len)
- goto out;
- /* The obj is contained entirely in the tail: */
- obj->data = buf->tail[0].iov_base
- + offset - tail_offset + 4;
- } else {
- /* use end of tail as storage for obj:
- * (We don't copy to the beginning because then we'd have
- * to worry about doing a potentially overlapping copy.
- * This assumes the object is at most half the length of the
- * tail.) */
- if (obj->len > buf->tail[0].iov_len)
- goto out;
- obj->data = buf->tail[0].iov_base + buf->tail[0].iov_len -
- obj->len;
- if (read_bytes_from_xdr_buf(buf, offset + 4,
- obj->data, obj->len))
- goto out;
+ return -EFAULT;
+ if (xdr_buf_subsegment(buf, &subbuf, offset + 4, obj->len))
+ return -EFAULT;
- }
+ /* Is the obj contained entirely in the head? */
+ obj->data = subbuf.head[0].iov_base;
+ if (subbuf.head[0].iov_len == obj->len)
+ return 0;
+ /* ..or is the obj contained entirely in the tail? */
+ obj->data = subbuf.tail[0].iov_base;
+ if (subbuf.tail[0].iov_len == obj->len)
+ return 0;
+
+ /* use end of tail as storage for obj:
+ * (We don't copy to the beginning because then we'd have
+ * to worry about doing a potentially overlapping copy.
+ * This assumes the object is at most half the length of the
+ * tail.) */
+ if (obj->len > buf->buflen - buf->len)
+ return -ENOMEM;
+ if (buf->tail[0].iov_len != 0)
+ obj->data = buf->tail[0].iov_base + buf->tail[0].iov_len;
+ else
+ obj->data = buf->head[0].iov_base + buf->head[0].iov_len;
+ __read_bytes_from_xdr_buf(&subbuf, obj->data, obj->len);
return 0;
-out:
- return -1;
}
/* Returns 0 on success, or else a negative error code. */
@@ -1020,3 +1021,71 @@ xdr_encode_array2(struct xdr_buf *buf, unsigned int base,
return xdr_xcode_array2(buf, base, desc, 1);
}
+
+int
+xdr_process_buf(struct xdr_buf *buf, unsigned int offset, unsigned int len,
+ int (*actor)(struct scatterlist *, void *), void *data)
+{
+ int i, ret = 0;
+ unsigned page_len, thislen, page_offset;
+ struct scatterlist sg[1];
+
+ if (offset >= buf->head[0].iov_len) {
+ offset -= buf->head[0].iov_len;
+ } else {
+ thislen = buf->head[0].iov_len - offset;
+ if (thislen > len)
+ thislen = len;
+ sg_set_buf(sg, buf->head[0].iov_base + offset, thislen);
+ ret = actor(sg, data);
+ if (ret)
+ goto out;
+ offset = 0;
+ len -= thislen;
+ }
+ if (len == 0)
+ goto out;
+
+ if (offset >= buf->page_len) {
+ offset -= buf->page_len;
+ } else {
+ page_len = buf->page_len - offset;
+ if (page_len > len)
+ page_len = len;
+ len -= page_len;
+ page_offset = (offset + buf->page_base) & (PAGE_CACHE_SIZE - 1);
+ i = (offset + buf->page_base) >> PAGE_CACHE_SHIFT;
+ thislen = PAGE_CACHE_SIZE - page_offset;
+ do {
+ if (thislen > page_len)
+ thislen = page_len;
+ sg->page = buf->pages[i];
+ sg->offset = page_offset;
+ sg->length = thislen;
+ ret = actor(sg, data);
+ if (ret)
+ goto out;
+ page_len -= thislen;
+ i++;
+ page_offset = 0;
+ thislen = PAGE_CACHE_SIZE;
+ } while (page_len != 0);
+ offset = 0;
+ }
+ if (len == 0)
+ goto out;
+ if (offset < buf->tail[0].iov_len) {
+ thislen = buf->tail[0].iov_len - offset;
+ if (thislen > len)
+ thislen = len;
+ sg_set_buf(sg, buf->tail[0].iov_base + offset, thislen);
+ ret = actor(sg, data);
+ len -= thislen;
+ }
+ if (len != 0)
+ ret = -EINVAL;
+out:
+ return ret;
+}
+EXPORT_SYMBOL(xdr_process_buf);
+
diff --git a/net/sunrpc/xprt.c b/net/sunrpc/xprt.c
index 4f9a5d9791f..7a3999f0a4a 100644
--- a/net/sunrpc/xprt.c
+++ b/net/sunrpc/xprt.c
@@ -459,7 +459,6 @@ int xprt_adjust_timeout(struct rpc_rqst *req)
if (to->to_maxval && req->rq_timeout >= to->to_maxval)
req->rq_timeout = to->to_maxval;
req->rq_retries++;
- pprintk("RPC: %lu retrans\n", jiffies);
} else {
req->rq_timeout = to->to_initval;
req->rq_retries = 0;
@@ -468,7 +467,6 @@ int xprt_adjust_timeout(struct rpc_rqst *req)
spin_lock_bh(&xprt->transport_lock);
rpc_init_rtt(req->rq_task->tk_client->cl_rtt, to->to_initval);
spin_unlock_bh(&xprt->transport_lock);
- pprintk("RPC: %lu timeout\n", jiffies);
status = -ETIMEDOUT;
}
@@ -892,39 +890,25 @@ void xprt_set_timeout(struct rpc_timeout *to, unsigned int retr, unsigned long i
*/
struct rpc_xprt *xprt_create_transport(int proto, struct sockaddr *ap, size_t size, struct rpc_timeout *to)
{
- int result;
struct rpc_xprt *xprt;
struct rpc_rqst *req;
- if ((xprt = kzalloc(sizeof(struct rpc_xprt), GFP_KERNEL)) == NULL) {
- dprintk("RPC: xprt_create_transport: no memory\n");
- return ERR_PTR(-ENOMEM);
- }
- if (size <= sizeof(xprt->addr)) {
- memcpy(&xprt->addr, ap, size);
- xprt->addrlen = size;
- } else {
- kfree(xprt);
- dprintk("RPC: xprt_create_transport: address too large\n");
- return ERR_PTR(-EBADF);
- }
-
switch (proto) {
case IPPROTO_UDP:
- result = xs_setup_udp(xprt, to);
+ xprt = xs_setup_udp(ap, size, to);
break;
case IPPROTO_TCP:
- result = xs_setup_tcp(xprt, to);
+ xprt = xs_setup_tcp(ap, size, to);
break;
default:
printk(KERN_ERR "RPC: unrecognized transport protocol: %d\n",
proto);
return ERR_PTR(-EIO);
}
- if (result) {
- kfree(xprt);
- dprintk("RPC: xprt_create_transport: failed, %d\n", result);
- return ERR_PTR(result);
+ if (IS_ERR(xprt)) {
+ dprintk("RPC: xprt_create_transport: failed, %ld\n",
+ -PTR_ERR(xprt));
+ return xprt;
}
kref_init(&xprt->kref);
@@ -970,8 +954,11 @@ static void xprt_destroy(struct kref *kref)
dprintk("RPC: destroying transport %p\n", xprt);
xprt->shutdown = 1;
del_timer_sync(&xprt->timer);
+
+ /*
+ * Tear down transport state and free the rpc_xprt
+ */
xprt->ops->destroy(xprt);
- kfree(xprt);
}
/**
diff --git a/net/sunrpc/xprtsock.c b/net/sunrpc/xprtsock.c
index 2fc4a312326..49cabffd7fd 100644
--- a/net/sunrpc/xprtsock.c
+++ b/net/sunrpc/xprtsock.c
@@ -46,6 +46,92 @@ unsigned int xprt_min_resvport = RPC_DEF_MIN_RESVPORT;
unsigned int xprt_max_resvport = RPC_DEF_MAX_RESVPORT;
/*
+ * We can register our own files under /proc/sys/sunrpc by
+ * calling register_sysctl_table() again. The files in that
+ * directory become the union of all files registered there.
+ *
+ * We simply need to make sure that we don't collide with
+ * someone else's file names!
+ */
+
+#ifdef RPC_DEBUG
+
+static unsigned int min_slot_table_size = RPC_MIN_SLOT_TABLE;
+static unsigned int max_slot_table_size = RPC_MAX_SLOT_TABLE;
+static unsigned int xprt_min_resvport_limit = RPC_MIN_RESVPORT;
+static unsigned int xprt_max_resvport_limit = RPC_MAX_RESVPORT;
+
+static struct ctl_table_header *sunrpc_table_header;
+
+/*
+ * FIXME: changing the UDP slot table size should also resize the UDP
+ * socket buffers for existing UDP transports
+ */
+static ctl_table xs_tunables_table[] = {
+ {
+ .ctl_name = CTL_SLOTTABLE_UDP,
+ .procname = "udp_slot_table_entries",
+ .data = &xprt_udp_slot_table_entries,
+ .maxlen = sizeof(unsigned int),
+ .mode = 0644,
+ .proc_handler = &proc_dointvec_minmax,
+ .strategy = &sysctl_intvec,
+ .extra1 = &min_slot_table_size,
+ .extra2 = &max_slot_table_size
+ },
+ {
+ .ctl_name = CTL_SLOTTABLE_TCP,
+ .procname = "tcp_slot_table_entries",
+ .data = &xprt_tcp_slot_table_entries,
+ .maxlen = sizeof(unsigned int),
+ .mode = 0644,
+ .proc_handler = &proc_dointvec_minmax,
+ .strategy = &sysctl_intvec,
+ .extra1 = &min_slot_table_size,
+ .extra2 = &max_slot_table_size
+ },
+ {
+ .ctl_name = CTL_MIN_RESVPORT,
+ .procname = "min_resvport",
+ .data = &xprt_min_resvport,
+ .maxlen = sizeof(unsigned int),
+ .mode = 0644,
+ .proc_handler = &proc_dointvec_minmax,
+ .strategy = &sysctl_intvec,
+ .extra1 = &xprt_min_resvport_limit,
+ .extra2 = &xprt_max_resvport_limit
+ },
+ {
+ .ctl_name = CTL_MAX_RESVPORT,
+ .procname = "max_resvport",
+ .data = &xprt_max_resvport,
+ .maxlen = sizeof(unsigned int),
+ .mode = 0644,
+ .proc_handler = &proc_dointvec_minmax,
+ .strategy = &sysctl_intvec,
+ .extra1 = &xprt_min_resvport_limit,
+ .extra2 = &xprt_max_resvport_limit
+ },
+ {
+ .ctl_name = 0,
+ },
+};
+
+static ctl_table sunrpc_table[] = {
+ {
+ .ctl_name = CTL_SUNRPC,
+ .procname = "sunrpc",
+ .mode = 0555,
+ .child = xs_tunables_table
+ },
+ {
+ .ctl_name = 0,
+ },
+};
+
+#endif
+
+/*
* How many times to try sending a request on a socket before waiting
* for the socket buffer to clear.
*/
@@ -125,6 +211,55 @@ static inline void xs_pktdump(char *msg, u32 *packet, unsigned int count)
}
#endif
+struct sock_xprt {
+ struct rpc_xprt xprt;
+
+ /*
+ * Network layer
+ */
+ struct socket * sock;
+ struct sock * inet;
+
+ /*
+ * State of TCP reply receive
+ */
+ __be32 tcp_fraghdr,
+ tcp_xid;
+
+ u32 tcp_offset,
+ tcp_reclen;
+
+ unsigned long tcp_copied,
+ tcp_flags;
+
+ /*
+ * Connection of transports
+ */
+ struct delayed_work connect_worker;
+ unsigned short port;
+
+ /*
+ * UDP socket buffer size parameters
+ */
+ size_t rcvsize,
+ sndsize;
+
+ /*
+ * Saved socket callback addresses
+ */
+ void (*old_data_ready)(struct sock *, int);
+ void (*old_state_change)(struct sock *);
+ void (*old_write_space)(struct sock *);
+};
+
+/*
+ * TCP receive state flags
+ */
+#define TCP_RCV_LAST_FRAG (1UL << 0)
+#define TCP_RCV_COPY_FRAGHDR (1UL << 1)
+#define TCP_RCV_COPY_XID (1UL << 2)
+#define TCP_RCV_COPY_DATA (1UL << 3)
+
static void xs_format_peer_addresses(struct rpc_xprt *xprt)
{
struct sockaddr_in *addr = (struct sockaddr_in *) &xprt->addr;
@@ -168,37 +303,52 @@ static void xs_free_peer_addresses(struct rpc_xprt *xprt)
#define XS_SENDMSG_FLAGS (MSG_DONTWAIT | MSG_NOSIGNAL)
-static inline int xs_send_head(struct socket *sock, struct sockaddr *addr, int addrlen, struct xdr_buf *xdr, unsigned int base, unsigned int len)
+static int xs_send_kvec(struct socket *sock, struct sockaddr *addr, int addrlen, struct kvec *vec, unsigned int base, int more)
{
- struct kvec iov = {
- .iov_base = xdr->head[0].iov_base + base,
- .iov_len = len - base,
- };
struct msghdr msg = {
.msg_name = addr,
.msg_namelen = addrlen,
- .msg_flags = XS_SENDMSG_FLAGS,
+ .msg_flags = XS_SENDMSG_FLAGS | (more ? MSG_MORE : 0),
+ };
+ struct kvec iov = {
+ .iov_base = vec->iov_base + base,
+ .iov_len = vec->iov_len - base,
};
- if (xdr->len > len)
- msg.msg_flags |= MSG_MORE;
-
- if (likely(iov.iov_len))
+ if (iov.iov_len != 0)
return kernel_sendmsg(sock, &msg, &iov, 1, iov.iov_len);
return kernel_sendmsg(sock, &msg, NULL, 0, 0);
}
-static int xs_send_tail(struct socket *sock, struct xdr_buf *xdr, unsigned int base, unsigned int len)
+static int xs_send_pagedata(struct socket *sock, struct xdr_buf *xdr, unsigned int base, int more)
{
- struct kvec iov = {
- .iov_base = xdr->tail[0].iov_base + base,
- .iov_len = len - base,
- };
- struct msghdr msg = {
- .msg_flags = XS_SENDMSG_FLAGS,
- };
+ struct page **ppage;
+ unsigned int remainder;
+ int err, sent = 0;
+
+ remainder = xdr->page_len - base;
+ base += xdr->page_base;
+ ppage = xdr->pages + (base >> PAGE_SHIFT);
+ base &= ~PAGE_MASK;
+ for(;;) {
+ unsigned int len = min_t(unsigned int, PAGE_SIZE - base, remainder);
+ int flags = XS_SENDMSG_FLAGS;
- return kernel_sendmsg(sock, &msg, &iov, 1, iov.iov_len);
+ remainder -= len;
+ if (remainder != 0 || more)
+ flags |= MSG_MORE;
+ err = sock->ops->sendpage(sock, *ppage, base, len, flags);
+ if (remainder == 0 || err != len)
+ break;
+ sent += err;
+ ppage++;
+ base = 0;
+ }
+ if (sent == 0)
+ return err;
+ if (err > 0)
+ sent += err;
+ return sent;
}
/**
@@ -210,76 +360,51 @@ static int xs_send_tail(struct socket *sock, struct xdr_buf *xdr, unsigned int b
* @base: starting position in the buffer
*
*/
-static inline int xs_sendpages(struct socket *sock, struct sockaddr *addr, int addrlen, struct xdr_buf *xdr, unsigned int base)
+static int xs_sendpages(struct socket *sock, struct sockaddr *addr, int addrlen, struct xdr_buf *xdr, unsigned int base)
{
- struct page **ppage = xdr->pages;
- unsigned int len, pglen = xdr->page_len;
- int err, ret = 0;
+ unsigned int remainder = xdr->len - base;
+ int err, sent = 0;
if (unlikely(!sock))
return -ENOTCONN;
clear_bit(SOCK_ASYNC_NOSPACE, &sock->flags);
+ if (base != 0) {
+ addr = NULL;
+ addrlen = 0;
+ }
- len = xdr->head[0].iov_len;
- if (base < len || (addr != NULL && base == 0)) {
- err = xs_send_head(sock, addr, addrlen, xdr, base, len);
- if (ret == 0)
- ret = err;
- else if (err > 0)
- ret += err;
- if (err != (len - base))
+ if (base < xdr->head[0].iov_len || addr != NULL) {
+ unsigned int len = xdr->head[0].iov_len - base;
+ remainder -= len;
+ err = xs_send_kvec(sock, addr, addrlen, &xdr->head[0], base, remainder != 0);
+ if (remainder == 0 || err != len)
goto out;
+ sent += err;
base = 0;
} else
- base -= len;
-
- if (unlikely(pglen == 0))
- goto copy_tail;
- if (unlikely(base >= pglen)) {
- base -= pglen;
- goto copy_tail;
- }
- if (base || xdr->page_base) {
- pglen -= base;
- base += xdr->page_base;
- ppage += base >> PAGE_CACHE_SHIFT;
- base &= ~PAGE_CACHE_MASK;
- }
-
- do {
- int flags = XS_SENDMSG_FLAGS;
-
- len = PAGE_CACHE_SIZE;
- if (base)
- len -= base;
- if (pglen < len)
- len = pglen;
-
- if (pglen != len || xdr->tail[0].iov_len != 0)
- flags |= MSG_MORE;
+ base -= xdr->head[0].iov_len;
- err = kernel_sendpage(sock, *ppage, base, len, flags);
- if (ret == 0)
- ret = err;
- else if (err > 0)
- ret += err;
- if (err != len)
+ if (base < xdr->page_len) {
+ unsigned int len = xdr->page_len - base;
+ remainder -= len;
+ err = xs_send_pagedata(sock, xdr, base, remainder != 0);
+ if (remainder == 0 || err != len)
goto out;
+ sent += err;
base = 0;
- ppage++;
- } while ((pglen -= len) != 0);
-copy_tail:
- len = xdr->tail[0].iov_len;
- if (base < len) {
- err = xs_send_tail(sock, xdr, base, len);
- if (ret == 0)
- ret = err;
- else if (err > 0)
- ret += err;
- }
+ } else
+ base -= xdr->page_len;
+
+ if (base >= xdr->tail[0].iov_len)
+ return sent;
+ err = xs_send_kvec(sock, NULL, 0, &xdr->tail[0], base, 0);
out:
- return ret;
+ if (sent == 0)
+ return err;
+ if (err > 0)
+ sent += err;
+ return sent;
}
/**
@@ -291,19 +416,20 @@ static void xs_nospace(struct rpc_task *task)
{
struct rpc_rqst *req = task->tk_rqstp;
struct rpc_xprt *xprt = req->rq_xprt;
+ struct sock_xprt *transport = container_of(xprt, struct sock_xprt, xprt);
dprintk("RPC: %4d xmit incomplete (%u left of %u)\n",
task->tk_pid, req->rq_slen - req->rq_bytes_sent,
req->rq_slen);
- if (test_bit(SOCK_ASYNC_NOSPACE, &xprt->sock->flags)) {
+ if (test_bit(SOCK_ASYNC_NOSPACE, &transport->sock->flags)) {
/* Protect against races with write_space */
spin_lock_bh(&xprt->transport_lock);
/* Don't race with disconnect */
if (!xprt_connected(xprt))
task->tk_status = -ENOTCONN;
- else if (test_bit(SOCK_NOSPACE, &xprt->sock->flags))
+ else if (test_bit(SOCK_NOSPACE, &transport->sock->flags))
xprt_wait_for_buffer_space(task);
spin_unlock_bh(&xprt->transport_lock);
@@ -327,6 +453,7 @@ static int xs_udp_send_request(struct rpc_task *task)
{
struct rpc_rqst *req = task->tk_rqstp;
struct rpc_xprt *xprt = req->rq_xprt;
+ struct sock_xprt *transport = container_of(xprt, struct sock_xprt, xprt);
struct xdr_buf *xdr = &req->rq_snd_buf;
int status;
@@ -335,8 +462,10 @@ static int xs_udp_send_request(struct rpc_task *task)
req->rq_svec->iov_len);
req->rq_xtime = jiffies;
- status = xs_sendpages(xprt->sock, (struct sockaddr *) &xprt->addr,
- xprt->addrlen, xdr, req->rq_bytes_sent);
+ status = xs_sendpages(transport->sock,
+ (struct sockaddr *) &xprt->addr,
+ xprt->addrlen, xdr,
+ req->rq_bytes_sent);
dprintk("RPC: xs_udp_send_request(%u) = %d\n",
xdr->len - req->rq_bytes_sent, status);
@@ -392,6 +521,7 @@ static int xs_tcp_send_request(struct rpc_task *task)
{
struct rpc_rqst *req = task->tk_rqstp;
struct rpc_xprt *xprt = req->rq_xprt;
+ struct sock_xprt *transport = container_of(xprt, struct sock_xprt, xprt);
struct xdr_buf *xdr = &req->rq_snd_buf;
int status, retry = 0;
@@ -406,8 +536,8 @@ static int xs_tcp_send_request(struct rpc_task *task)
* called sendmsg(). */
while (1) {
req->rq_xtime = jiffies;
- status = xs_sendpages(xprt->sock, NULL, 0, xdr,
- req->rq_bytes_sent);
+ status = xs_sendpages(transport->sock,
+ NULL, 0, xdr, req->rq_bytes_sent);
dprintk("RPC: xs_tcp_send_request(%u) = %d\n",
xdr->len - req->rq_bytes_sent, status);
@@ -485,8 +615,9 @@ out_release:
*/
static void xs_close(struct rpc_xprt *xprt)
{
- struct socket *sock = xprt->sock;
- struct sock *sk = xprt->inet;
+ struct sock_xprt *transport = container_of(xprt, struct sock_xprt, xprt);
+ struct socket *sock = transport->sock;
+ struct sock *sk = transport->inet;
if (!sk)
goto clear_close_wait;
@@ -494,13 +625,13 @@ static void xs_close(struct rpc_xprt *xprt)
dprintk("RPC: xs_close xprt %p\n", xprt);
write_lock_bh(&sk->sk_callback_lock);
- xprt->inet = NULL;
- xprt->sock = NULL;
+ transport->inet = NULL;
+ transport->sock = NULL;
sk->sk_user_data = NULL;
- sk->sk_data_ready = xprt->old_data_ready;
- sk->sk_state_change = xprt->old_state_change;
- sk->sk_write_space = xprt->old_write_space;
+ sk->sk_data_ready = transport->old_data_ready;
+ sk->sk_state_change = transport->old_state_change;
+ sk->sk_write_space = transport->old_write_space;
write_unlock_bh(&sk->sk_callback_lock);
sk->sk_no_check = 0;
@@ -519,15 +650,18 @@ clear_close_wait:
*/
static void xs_destroy(struct rpc_xprt *xprt)
{
+ struct sock_xprt *transport = container_of(xprt, struct sock_xprt, xprt);
+
dprintk("RPC: xs_destroy xprt %p\n", xprt);
- cancel_delayed_work(&xprt->connect_worker);
+ cancel_delayed_work(&transport->connect_worker);
flush_scheduled_work();
xprt_disconnect(xprt);
xs_close(xprt);
xs_free_peer_addresses(xprt);
kfree(xprt->slot);
+ kfree(xprt);
}
static inline struct rpc_xprt *xprt_from_sock(struct sock *sk)
@@ -603,91 +737,75 @@ static void xs_udp_data_ready(struct sock *sk, int len)
read_unlock(&sk->sk_callback_lock);
}
-static inline size_t xs_tcp_copy_data(skb_reader_t *desc, void *p, size_t len)
-{
- if (len > desc->count)
- len = desc->count;
- if (skb_copy_bits(desc->skb, desc->offset, p, len)) {
- dprintk("RPC: failed to copy %zu bytes from skb. %zu bytes remain\n",
- len, desc->count);
- return 0;
- }
- desc->offset += len;
- desc->count -= len;
- dprintk("RPC: copied %zu bytes from skb. %zu bytes remain\n",
- len, desc->count);
- return len;
-}
-
-static inline void xs_tcp_read_fraghdr(struct rpc_xprt *xprt, skb_reader_t *desc)
+static inline void xs_tcp_read_fraghdr(struct rpc_xprt *xprt, struct xdr_skb_reader *desc)
{
+ struct sock_xprt *transport = container_of(xprt, struct sock_xprt, xprt);
size_t len, used;
char *p;
- p = ((char *) &xprt->tcp_recm) + xprt->tcp_offset;
- len = sizeof(xprt->tcp_recm) - xprt->tcp_offset;
- used = xs_tcp_copy_data(desc, p, len);
- xprt->tcp_offset += used;
+ p = ((char *) &transport->tcp_fraghdr) + transport->tcp_offset;
+ len = sizeof(transport->tcp_fraghdr) - transport->tcp_offset;
+ used = xdr_skb_read_bits(desc, p, len);
+ transport->tcp_offset += used;
if (used != len)
return;
- xprt->tcp_reclen = ntohl(xprt->tcp_recm);
- if (xprt->tcp_reclen & RPC_LAST_STREAM_FRAGMENT)
- xprt->tcp_flags |= XPRT_LAST_FRAG;
+ transport->tcp_reclen = ntohl(transport->tcp_fraghdr);
+ if (transport->tcp_reclen & RPC_LAST_STREAM_FRAGMENT)
+ transport->tcp_flags |= TCP_RCV_LAST_FRAG;
else
- xprt->tcp_flags &= ~XPRT_LAST_FRAG;
- xprt->tcp_reclen &= RPC_FRAGMENT_SIZE_MASK;
+ transport->tcp_flags &= ~TCP_RCV_LAST_FRAG;
+ transport->tcp_reclen &= RPC_FRAGMENT_SIZE_MASK;
- xprt->tcp_flags &= ~XPRT_COPY_RECM;
- xprt->tcp_offset = 0;
+ transport->tcp_flags &= ~TCP_RCV_COPY_FRAGHDR;
+ transport->tcp_offset = 0;
/* Sanity check of the record length */
- if (unlikely(xprt->tcp_reclen < 4)) {
+ if (unlikely(transport->tcp_reclen < 4)) {
dprintk("RPC: invalid TCP record fragment length\n");
xprt_disconnect(xprt);
return;
}
dprintk("RPC: reading TCP record fragment of length %d\n",
- xprt->tcp_reclen);
+ transport->tcp_reclen);
}
-static void xs_tcp_check_recm(struct rpc_xprt *xprt)
+static void xs_tcp_check_fraghdr(struct sock_xprt *transport)
{
- dprintk("RPC: xprt = %p, tcp_copied = %lu, tcp_offset = %u, tcp_reclen = %u, tcp_flags = %lx\n",
- xprt, xprt->tcp_copied, xprt->tcp_offset, xprt->tcp_reclen, xprt->tcp_flags);
- if (xprt->tcp_offset == xprt->tcp_reclen) {
- xprt->tcp_flags |= XPRT_COPY_RECM;
- xprt->tcp_offset = 0;
- if (xprt->tcp_flags & XPRT_LAST_FRAG) {
- xprt->tcp_flags &= ~XPRT_COPY_DATA;
- xprt->tcp_flags |= XPRT_COPY_XID;
- xprt->tcp_copied = 0;
+ if (transport->tcp_offset == transport->tcp_reclen) {
+ transport->tcp_flags |= TCP_RCV_COPY_FRAGHDR;
+ transport->tcp_offset = 0;
+ if (transport->tcp_flags & TCP_RCV_LAST_FRAG) {
+ transport->tcp_flags &= ~TCP_RCV_COPY_DATA;
+ transport->tcp_flags |= TCP_RCV_COPY_XID;
+ transport->tcp_copied = 0;
}
}
}
-static inline void xs_tcp_read_xid(struct rpc_xprt *xprt, skb_reader_t *desc)
+static inline void xs_tcp_read_xid(struct sock_xprt *transport, struct xdr_skb_reader *desc)
{
size_t len, used;
char *p;
- len = sizeof(xprt->tcp_xid) - xprt->tcp_offset;
+ len = sizeof(transport->tcp_xid) - transport->tcp_offset;
dprintk("RPC: reading XID (%Zu bytes)\n", len);
- p = ((char *) &xprt->tcp_xid) + xprt->tcp_offset;
- used = xs_tcp_copy_data(desc, p, len);
- xprt->tcp_offset += used;
+ p = ((char *) &transport->tcp_xid) + transport->tcp_offset;
+ used = xdr_skb_read_bits(desc, p, len);
+ transport->tcp_offset += used;
if (used != len)
return;
- xprt->tcp_flags &= ~XPRT_COPY_XID;
- xprt->tcp_flags |= XPRT_COPY_DATA;
- xprt->tcp_copied = 4;
+ transport->tcp_flags &= ~TCP_RCV_COPY_XID;
+ transport->tcp_flags |= TCP_RCV_COPY_DATA;
+ transport->tcp_copied = 4;
dprintk("RPC: reading reply for XID %08x\n",
- ntohl(xprt->tcp_xid));
- xs_tcp_check_recm(xprt);
+ ntohl(transport->tcp_xid));
+ xs_tcp_check_fraghdr(transport);
}
-static inline void xs_tcp_read_request(struct rpc_xprt *xprt, skb_reader_t *desc)
+static inline void xs_tcp_read_request(struct rpc_xprt *xprt, struct xdr_skb_reader *desc)
{
+ struct sock_xprt *transport = container_of(xprt, struct sock_xprt, xprt);
struct rpc_rqst *req;
struct xdr_buf *rcvbuf;
size_t len;
@@ -695,116 +813,118 @@ static inline void xs_tcp_read_request(struct rpc_xprt *xprt, skb_reader_t *desc
/* Find and lock the request corresponding to this xid */
spin_lock(&xprt->transport_lock);
- req = xprt_lookup_rqst(xprt, xprt->tcp_xid);
+ req = xprt_lookup_rqst(xprt, transport->tcp_xid);
if (!req) {
- xprt->tcp_flags &= ~XPRT_COPY_DATA;
+ transport->tcp_flags &= ~TCP_RCV_COPY_DATA;
dprintk("RPC: XID %08x request not found!\n",
- ntohl(xprt->tcp_xid));
+ ntohl(transport->tcp_xid));
spin_unlock(&xprt->transport_lock);
return;
}
rcvbuf = &req->rq_private_buf;
len = desc->count;
- if (len > xprt->tcp_reclen - xprt->tcp_offset) {
- skb_reader_t my_desc;
+ if (len > transport->tcp_reclen - transport->tcp_offset) {
+ struct xdr_skb_reader my_desc;
- len = xprt->tcp_reclen - xprt->tcp_offset;
+ len = transport->tcp_reclen - transport->tcp_offset;
memcpy(&my_desc, desc, sizeof(my_desc));
my_desc.count = len;
- r = xdr_partial_copy_from_skb(rcvbuf, xprt->tcp_copied,
- &my_desc, xs_tcp_copy_data);
+ r = xdr_partial_copy_from_skb(rcvbuf, transport->tcp_copied,
+ &my_desc, xdr_skb_read_bits);
desc->count -= r;
desc->offset += r;
} else
- r = xdr_partial_copy_from_skb(rcvbuf, xprt->tcp_copied,
- desc, xs_tcp_copy_data);
+ r = xdr_partial_copy_from_skb(rcvbuf, transport->tcp_copied,
+ desc, xdr_skb_read_bits);
if (r > 0) {
- xprt->tcp_copied += r;
- xprt->tcp_offset += r;
+ transport->tcp_copied += r;
+ transport->tcp_offset += r;
}
if (r != len) {
/* Error when copying to the receive buffer,
* usually because we weren't able to allocate
* additional buffer pages. All we can do now
- * is turn off XPRT_COPY_DATA, so the request
+ * is turn off TCP_RCV_COPY_DATA, so the request
* will not receive any additional updates,
* and time out.
* Any remaining data from this record will
* be discarded.
*/
- xprt->tcp_flags &= ~XPRT_COPY_DATA;
+ transport->tcp_flags &= ~TCP_RCV_COPY_DATA;
dprintk("RPC: XID %08x truncated request\n",
- ntohl(xprt->tcp_xid));
+ ntohl(transport->tcp_xid));
dprintk("RPC: xprt = %p, tcp_copied = %lu, tcp_offset = %u, tcp_reclen = %u\n",
- xprt, xprt->tcp_copied, xprt->tcp_offset, xprt->tcp_reclen);
+ xprt, transport->tcp_copied, transport->tcp_offset,
+ transport->tcp_reclen);
goto out;
}
dprintk("RPC: XID %08x read %Zd bytes\n",
- ntohl(xprt->tcp_xid), r);
+ ntohl(transport->tcp_xid), r);
dprintk("RPC: xprt = %p, tcp_copied = %lu, tcp_offset = %u, tcp_reclen = %u\n",
- xprt, xprt->tcp_copied, xprt->tcp_offset, xprt->tcp_reclen);
-
- if (xprt->tcp_copied == req->rq_private_buf.buflen)
- xprt->tcp_flags &= ~XPRT_COPY_DATA;
- else if (xprt->tcp_offset == xprt->tcp_reclen) {
- if (xprt->tcp_flags & XPRT_LAST_FRAG)
- xprt->tcp_flags &= ~XPRT_COPY_DATA;
+ xprt, transport->tcp_copied, transport->tcp_offset,
+ transport->tcp_reclen);
+
+ if (transport->tcp_copied == req->rq_private_buf.buflen)
+ transport->tcp_flags &= ~TCP_RCV_COPY_DATA;
+ else if (transport->tcp_offset == transport->tcp_reclen) {
+ if (transport->tcp_flags & TCP_RCV_LAST_FRAG)
+ transport->tcp_flags &= ~TCP_RCV_COPY_DATA;
}
out:
- if (!(xprt->tcp_flags & XPRT_COPY_DATA))
- xprt_complete_rqst(req->rq_task, xprt->tcp_copied);
+ if (!(transport->tcp_flags & TCP_RCV_COPY_DATA))
+ xprt_complete_rqst(req->rq_task, transport->tcp_copied);
spin_unlock(&xprt->transport_lock);
- xs_tcp_check_recm(xprt);
+ xs_tcp_check_fraghdr(transport);
}
-static inline void xs_tcp_read_discard(struct rpc_xprt *xprt, skb_reader_t *desc)
+static inline void xs_tcp_read_discard(struct sock_xprt *transport, struct xdr_skb_reader *desc)
{
size_t len;
- len = xprt->tcp_reclen - xprt->tcp_offset;
+ len = transport->tcp_reclen - transport->tcp_offset;
if (len > desc->count)
len = desc->count;
desc->count -= len;
desc->offset += len;
- xprt->tcp_offset += len;
+ transport->tcp_offset += len;
dprintk("RPC: discarded %Zu bytes\n", len);
- xs_tcp_check_recm(xprt);
+ xs_tcp_check_fraghdr(transport);
}
static int xs_tcp_data_recv(read_descriptor_t *rd_desc, struct sk_buff *skb, unsigned int offset, size_t len)
{
struct rpc_xprt *xprt = rd_desc->arg.data;
- skb_reader_t desc = {
+ struct sock_xprt *transport = container_of(xprt, struct sock_xprt, xprt);
+ struct xdr_skb_reader desc = {
.skb = skb,
.offset = offset,
.count = len,
- .csum = 0
};
dprintk("RPC: xs_tcp_data_recv started\n");
do {
/* Read in a new fragment marker if necessary */
/* Can we ever really expect to get completely empty fragments? */
- if (xprt->tcp_flags & XPRT_COPY_RECM) {
+ if (transport->tcp_flags & TCP_RCV_COPY_FRAGHDR) {
xs_tcp_read_fraghdr(xprt, &desc);
continue;
}
/* Read in the xid if necessary */
- if (xprt->tcp_flags & XPRT_COPY_XID) {
- xs_tcp_read_xid(xprt, &desc);
+ if (transport->tcp_flags & TCP_RCV_COPY_XID) {
+ xs_tcp_read_xid(transport, &desc);
continue;
}
/* Read in the request data */
- if (xprt->tcp_flags & XPRT_COPY_DATA) {
+ if (transport->tcp_flags & TCP_RCV_COPY_DATA) {
xs_tcp_read_request(xprt, &desc);
continue;
}
/* Skip over any trailing bytes on short reads */
- xs_tcp_read_discard(xprt, &desc);
+ xs_tcp_read_discard(transport, &desc);
} while (desc.count);
dprintk("RPC: xs_tcp_data_recv done\n");
return len - desc.count;
@@ -858,11 +978,16 @@ static void xs_tcp_state_change(struct sock *sk)
case TCP_ESTABLISHED:
spin_lock_bh(&xprt->transport_lock);
if (!xprt_test_and_set_connected(xprt)) {
+ struct sock_xprt *transport = container_of(xprt,
+ struct sock_xprt, xprt);
+
/* Reset TCP record info */
- xprt->tcp_offset = 0;
- xprt->tcp_reclen = 0;
- xprt->tcp_copied = 0;
- xprt->tcp_flags = XPRT_COPY_RECM | XPRT_COPY_XID;
+ transport->tcp_offset = 0;
+ transport->tcp_reclen = 0;
+ transport->tcp_copied = 0;
+ transport->tcp_flags =
+ TCP_RCV_COPY_FRAGHDR | TCP_RCV_COPY_XID;
+
xprt->reestablish_timeout = XS_TCP_INIT_REEST_TO;
xprt_wake_pending_tasks(xprt, 0);
}
@@ -951,15 +1076,16 @@ static void xs_tcp_write_space(struct sock *sk)
static void xs_udp_do_set_buffer_size(struct rpc_xprt *xprt)
{
- struct sock *sk = xprt->inet;
+ struct sock_xprt *transport = container_of(xprt, struct sock_xprt, xprt);
+ struct sock *sk = transport->inet;
- if (xprt->rcvsize) {
+ if (transport->rcvsize) {
sk->sk_userlocks |= SOCK_RCVBUF_LOCK;
- sk->sk_rcvbuf = xprt->rcvsize * xprt->max_reqs * 2;
+ sk->sk_rcvbuf = transport->rcvsize * xprt->max_reqs * 2;
}
- if (xprt->sndsize) {
+ if (transport->sndsize) {
sk->sk_userlocks |= SOCK_SNDBUF_LOCK;
- sk->sk_sndbuf = xprt->sndsize * xprt->max_reqs * 2;
+ sk->sk_sndbuf = transport->sndsize * xprt->max_reqs * 2;
sk->sk_write_space(sk);
}
}
@@ -974,12 +1100,14 @@ static void xs_udp_do_set_buffer_size(struct rpc_xprt *xprt)
*/
static void xs_udp_set_buffer_size(struct rpc_xprt *xprt, size_t sndsize, size_t rcvsize)
{
- xprt->sndsize = 0;
+ struct sock_xprt *transport = container_of(xprt, struct sock_xprt, xprt);
+
+ transport->sndsize = 0;
if (sndsize)
- xprt->sndsize = sndsize + 1024;
- xprt->rcvsize = 0;
+ transport->sndsize = sndsize + 1024;
+ transport->rcvsize = 0;
if (rcvsize)
- xprt->rcvsize = rcvsize + 1024;
+ transport->rcvsize = rcvsize + 1024;
xs_udp_do_set_buffer_size(xprt);
}
@@ -1003,19 +1131,6 @@ static unsigned short xs_get_random_port(void)
}
/**
- * xs_print_peer_address - format an IPv4 address for printing
- * @xprt: generic transport
- * @format: flags field indicating which parts of the address to render
- */
-static char *xs_print_peer_address(struct rpc_xprt *xprt, enum rpc_display_format_t format)
-{
- if (xprt->address_strings[format] != NULL)
- return xprt->address_strings[format];
- else
- return "unprintable";
-}
-
-/**
* xs_set_port - reset the port number in the remote endpoint address
* @xprt: generic transport
* @port: new port number
@@ -1030,20 +1145,20 @@ static void xs_set_port(struct rpc_xprt *xprt, unsigned short port)
sap->sin_port = htons(port);
}
-static int xs_bindresvport(struct rpc_xprt *xprt, struct socket *sock)
+static int xs_bindresvport(struct sock_xprt *transport, struct socket *sock)
{
struct sockaddr_in myaddr = {
.sin_family = AF_INET,
};
int err;
- unsigned short port = xprt->port;
+ unsigned short port = transport->port;
do {
myaddr.sin_port = htons(port);
err = kernel_bind(sock, (struct sockaddr *) &myaddr,
sizeof(myaddr));
if (err == 0) {
- xprt->port = port;
+ transport->port = port;
dprintk("RPC: xs_bindresvport bound to port %u\n",
port);
return 0;
@@ -1052,7 +1167,7 @@ static int xs_bindresvport(struct rpc_xprt *xprt, struct socket *sock)
port = xprt_max_resvport;
else
port--;
- } while (err == -EADDRINUSE && port != xprt->port);
+ } while (err == -EADDRINUSE && port != transport->port);
dprintk("RPC: can't bind to reserved port (%d).\n", -err);
return err;
@@ -1095,9 +1210,10 @@ static inline void xs_reclassify_socket(struct socket *sock)
*/
static void xs_udp_connect_worker(struct work_struct *work)
{
- struct rpc_xprt *xprt =
- container_of(work, struct rpc_xprt, connect_worker.work);
- struct socket *sock = xprt->sock;
+ struct sock_xprt *transport =
+ container_of(work, struct sock_xprt, connect_worker.work);
+ struct rpc_xprt *xprt = &transport->xprt;
+ struct socket *sock = transport->sock;
int err, status = -EIO;
if (xprt->shutdown || !xprt_bound(xprt))
@@ -1112,23 +1228,23 @@ static void xs_udp_connect_worker(struct work_struct *work)
}
xs_reclassify_socket(sock);
- if (xprt->resvport && xs_bindresvport(xprt, sock) < 0) {
+ if (xprt->resvport && xs_bindresvport(transport, sock) < 0) {
sock_release(sock);
goto out;
}
dprintk("RPC: worker connecting xprt %p to address: %s\n",
- xprt, xs_print_peer_address(xprt, RPC_DISPLAY_ALL));
+ xprt, xprt->address_strings[RPC_DISPLAY_ALL]);
- if (!xprt->inet) {
+ if (!transport->inet) {
struct sock *sk = sock->sk;
write_lock_bh(&sk->sk_callback_lock);
sk->sk_user_data = xprt;
- xprt->old_data_ready = sk->sk_data_ready;
- xprt->old_state_change = sk->sk_state_change;
- xprt->old_write_space = sk->sk_write_space;
+ transport->old_data_ready = sk->sk_data_ready;
+ transport->old_state_change = sk->sk_state_change;
+ transport->old_write_space = sk->sk_write_space;
sk->sk_data_ready = xs_udp_data_ready;
sk->sk_write_space = xs_udp_write_space;
sk->sk_no_check = UDP_CSUM_NORCV;
@@ -1137,8 +1253,8 @@ static void xs_udp_connect_worker(struct work_struct *work)
xprt_set_connected(xprt);
/* Reset to new socket */
- xprt->sock = sock;
- xprt->inet = sk;
+ transport->sock = sock;
+ transport->inet = sk;
write_unlock_bh(&sk->sk_callback_lock);
}
@@ -1156,7 +1272,7 @@ out:
static void xs_tcp_reuse_connection(struct rpc_xprt *xprt)
{
int result;
- struct socket *sock = xprt->sock;
+ struct sock_xprt *transport = container_of(xprt, struct sock_xprt, xprt);
struct sockaddr any;
dprintk("RPC: disconnecting xprt %p to reuse port\n", xprt);
@@ -1167,7 +1283,7 @@ static void xs_tcp_reuse_connection(struct rpc_xprt *xprt)
*/
memset(&any, 0, sizeof(any));
any.sa_family = AF_UNSPEC;
- result = kernel_connect(sock, &any, sizeof(any), 0);
+ result = kernel_connect(transport->sock, &any, sizeof(any), 0);
if (result)
dprintk("RPC: AF_UNSPEC connect return code %d\n",
result);
@@ -1181,15 +1297,16 @@ static void xs_tcp_reuse_connection(struct rpc_xprt *xprt)
*/
static void xs_tcp_connect_worker(struct work_struct *work)
{
- struct rpc_xprt *xprt =
- container_of(work, struct rpc_xprt, connect_worker.work);
- struct socket *sock = xprt->sock;
+ struct sock_xprt *transport =
+ container_of(work, struct sock_xprt, connect_worker.work);
+ struct rpc_xprt *xprt = &transport->xprt;
+ struct socket *sock = transport->sock;
int err, status = -EIO;
if (xprt->shutdown || !xprt_bound(xprt))
goto out;
- if (!xprt->sock) {
+ if (!sock) {
/* start from scratch */
if ((err = sock_create_kern(PF_INET, SOCK_STREAM, IPPROTO_TCP, &sock)) < 0) {
dprintk("RPC: can't create TCP transport socket (%d).\n", -err);
@@ -1197,7 +1314,7 @@ static void xs_tcp_connect_worker(struct work_struct *work)
}
xs_reclassify_socket(sock);
- if (xprt->resvport && xs_bindresvport(xprt, sock) < 0) {
+ if (xprt->resvport && xs_bindresvport(transport, sock) < 0) {
sock_release(sock);
goto out;
}
@@ -1206,17 +1323,17 @@ static void xs_tcp_connect_worker(struct work_struct *work)
xs_tcp_reuse_connection(xprt);
dprintk("RPC: worker connecting xprt %p to address: %s\n",
- xprt, xs_print_peer_address(xprt, RPC_DISPLAY_ALL));
+ xprt, xprt->address_strings[RPC_DISPLAY_ALL]);
- if (!xprt->inet) {
+ if (!transport->inet) {
struct sock *sk = sock->sk;
write_lock_bh(&sk->sk_callback_lock);
sk->sk_user_data = xprt;
- xprt->old_data_ready = sk->sk_data_ready;
- xprt->old_state_change = sk->sk_state_change;
- xprt->old_write_space = sk->sk_write_space;
+ transport->old_data_ready = sk->sk_data_ready;
+ transport->old_state_change = sk->sk_state_change;
+ transport->old_write_space = sk->sk_write_space;
sk->sk_data_ready = xs_tcp_data_ready;
sk->sk_state_change = xs_tcp_state_change;
sk->sk_write_space = xs_tcp_write_space;
@@ -1231,8 +1348,8 @@ static void xs_tcp_connect_worker(struct work_struct *work)
xprt_clear_connected(xprt);
/* Reset to new socket */
- xprt->sock = sock;
- xprt->inet = sk;
+ transport->sock = sock;
+ transport->inet = sk;
write_unlock_bh(&sk->sk_callback_lock);
}
@@ -1281,21 +1398,22 @@ out_clear:
static void xs_connect(struct rpc_task *task)
{
struct rpc_xprt *xprt = task->tk_xprt;
+ struct sock_xprt *transport = container_of(xprt, struct sock_xprt, xprt);
if (xprt_test_and_set_connecting(xprt))
return;
- if (xprt->sock != NULL) {
+ if (transport->sock != NULL) {
dprintk("RPC: xs_connect delayed xprt %p for %lu seconds\n",
xprt, xprt->reestablish_timeout / HZ);
- schedule_delayed_work(&xprt->connect_worker,
+ schedule_delayed_work(&transport->connect_worker,
xprt->reestablish_timeout);
xprt->reestablish_timeout <<= 1;
if (xprt->reestablish_timeout > XS_TCP_MAX_REEST_TO)
xprt->reestablish_timeout = XS_TCP_MAX_REEST_TO;
} else {
dprintk("RPC: xs_connect scheduled xprt %p\n", xprt);
- schedule_delayed_work(&xprt->connect_worker, 0);
+ schedule_delayed_work(&transport->connect_worker, 0);
/* flush_scheduled_work can sleep... */
if (!RPC_IS_ASYNC(task))
@@ -1311,8 +1429,10 @@ static void xs_connect(struct rpc_task *task)
*/
static void xs_udp_print_stats(struct rpc_xprt *xprt, struct seq_file *seq)
{
+ struct sock_xprt *transport = container_of(xprt, struct sock_xprt, xprt);
+
seq_printf(seq, "\txprt:\tudp %u %lu %lu %lu %lu %Lu %Lu\n",
- xprt->port,
+ transport->port,
xprt->stat.bind_count,
xprt->stat.sends,
xprt->stat.recvs,
@@ -1329,13 +1449,14 @@ static void xs_udp_print_stats(struct rpc_xprt *xprt, struct seq_file *seq)
*/
static void xs_tcp_print_stats(struct rpc_xprt *xprt, struct seq_file *seq)
{
+ struct sock_xprt *transport = container_of(xprt, struct sock_xprt, xprt);
long idle_time = 0;
if (xprt_connected(xprt))
idle_time = (long)(jiffies - xprt->last_used) / HZ;
seq_printf(seq, "\txprt:\ttcp %u %lu %lu %lu %ld %lu %lu %lu %Lu %Lu\n",
- xprt->port,
+ transport->port,
xprt->stat.bind_count,
xprt->stat.connect_count,
xprt->stat.connect_time,
@@ -1349,7 +1470,6 @@ static void xs_tcp_print_stats(struct rpc_xprt *xprt, struct seq_file *seq)
static struct rpc_xprt_ops xs_udp_ops = {
.set_buffer_size = xs_udp_set_buffer_size,
- .print_addr = xs_print_peer_address,
.reserve_xprt = xprt_reserve_xprt_cong,
.release_xprt = xprt_release_xprt_cong,
.rpcbind = rpc_getport,
@@ -1367,7 +1487,6 @@ static struct rpc_xprt_ops xs_udp_ops = {
};
static struct rpc_xprt_ops xs_tcp_ops = {
- .print_addr = xs_print_peer_address,
.reserve_xprt = xprt_reserve_xprt,
.release_xprt = xs_tcp_release_xprt,
.rpcbind = rpc_getport,
@@ -1382,33 +1501,64 @@ static struct rpc_xprt_ops xs_tcp_ops = {
.print_stats = xs_tcp_print_stats,
};
+static struct rpc_xprt *xs_setup_xprt(struct sockaddr *addr, size_t addrlen, unsigned int slot_table_size)
+{
+ struct rpc_xprt *xprt;
+ struct sock_xprt *new;
+
+ if (addrlen > sizeof(xprt->addr)) {
+ dprintk("RPC: xs_setup_xprt: address too large\n");
+ return ERR_PTR(-EBADF);
+ }
+
+ new = kzalloc(sizeof(*new), GFP_KERNEL);
+ if (new == NULL) {
+ dprintk("RPC: xs_setup_xprt: couldn't allocate rpc_xprt\n");
+ return ERR_PTR(-ENOMEM);
+ }
+ xprt = &new->xprt;
+
+ xprt->max_reqs = slot_table_size;
+ xprt->slot = kcalloc(xprt->max_reqs, sizeof(struct rpc_rqst), GFP_KERNEL);
+ if (xprt->slot == NULL) {
+ kfree(xprt);
+ dprintk("RPC: xs_setup_xprt: couldn't allocate slot table\n");
+ return ERR_PTR(-ENOMEM);
+ }
+
+ memcpy(&xprt->addr, addr, addrlen);
+ xprt->addrlen = addrlen;
+ new->port = xs_get_random_port();
+
+ return xprt;
+}
+
/**
* xs_setup_udp - Set up transport to use a UDP socket
- * @xprt: transport to set up
+ * @addr: address of remote server
+ * @addrlen: length of address in bytes
* @to: timeout parameters
*
*/
-int xs_setup_udp(struct rpc_xprt *xprt, struct rpc_timeout *to)
+struct rpc_xprt *xs_setup_udp(struct sockaddr *addr, size_t addrlen, struct rpc_timeout *to)
{
- size_t slot_table_size;
- struct sockaddr_in *addr = (struct sockaddr_in *) &xprt->addr;
+ struct rpc_xprt *xprt;
+ struct sock_xprt *transport;
- xprt->max_reqs = xprt_udp_slot_table_entries;
- slot_table_size = xprt->max_reqs * sizeof(xprt->slot[0]);
- xprt->slot = kzalloc(slot_table_size, GFP_KERNEL);
- if (xprt->slot == NULL)
- return -ENOMEM;
+ xprt = xs_setup_xprt(addr, addrlen, xprt_udp_slot_table_entries);
+ if (IS_ERR(xprt))
+ return xprt;
+ transport = container_of(xprt, struct sock_xprt, xprt);
- if (ntohs(addr->sin_port) != 0)
+ if (ntohs(((struct sockaddr_in *)addr)->sin_port) != 0)
xprt_set_bound(xprt);
- xprt->port = xs_get_random_port();
xprt->prot = IPPROTO_UDP;
xprt->tsh_size = 0;
/* XXX: header size can vary due to auth type, IPv6, etc. */
xprt->max_payload = (1U << 16) - (MAX_HEADER << 3);
- INIT_DELAYED_WORK(&xprt->connect_worker, xs_udp_connect_worker);
+ INIT_DELAYED_WORK(&transport->connect_worker, xs_udp_connect_worker);
xprt->bind_timeout = XS_BIND_TO;
xprt->connect_timeout = XS_UDP_CONN_TO;
xprt->reestablish_timeout = XS_UDP_REEST_TO;
@@ -1423,37 +1573,36 @@ int xs_setup_udp(struct rpc_xprt *xprt, struct rpc_timeout *to)
xs_format_peer_addresses(xprt);
dprintk("RPC: set up transport to address %s\n",
- xs_print_peer_address(xprt, RPC_DISPLAY_ALL));
+ xprt->address_strings[RPC_DISPLAY_ALL]);
- return 0;
+ return xprt;
}
/**
* xs_setup_tcp - Set up transport to use a TCP socket
- * @xprt: transport to set up
+ * @addr: address of remote server
+ * @addrlen: length of address in bytes
* @to: timeout parameters
*
*/
-int xs_setup_tcp(struct rpc_xprt *xprt, struct rpc_timeout *to)
+struct rpc_xprt *xs_setup_tcp(struct sockaddr *addr, size_t addrlen, struct rpc_timeout *to)
{
- size_t slot_table_size;
- struct sockaddr_in *addr = (struct sockaddr_in *) &xprt->addr;
+ struct rpc_xprt *xprt;
+ struct sock_xprt *transport;
- xprt->max_reqs = xprt_tcp_slot_table_entries;
- slot_table_size = xprt->max_reqs * sizeof(xprt->slot[0]);
- xprt->slot = kzalloc(slot_table_size, GFP_KERNEL);
- if (xprt->slot == NULL)
- return -ENOMEM;
+ xprt = xs_setup_xprt(addr, addrlen, xprt_tcp_slot_table_entries);
+ if (IS_ERR(xprt))
+ return xprt;
+ transport = container_of(xprt, struct sock_xprt, xprt);
- if (ntohs(addr->sin_port) != 0)
+ if (ntohs(((struct sockaddr_in *)addr)->sin_port) != 0)
xprt_set_bound(xprt);
- xprt->port = xs_get_random_port();
xprt->prot = IPPROTO_TCP;
xprt->tsh_size = sizeof(rpc_fraghdr) / sizeof(u32);
xprt->max_payload = RPC_MAX_FRAGMENT_SIZE;
- INIT_DELAYED_WORK(&xprt->connect_worker, xs_tcp_connect_worker);
+ INIT_DELAYED_WORK(&transport->connect_worker, xs_tcp_connect_worker);
xprt->bind_timeout = XS_BIND_TO;
xprt->connect_timeout = XS_TCP_CONN_TO;
xprt->reestablish_timeout = XS_TCP_INIT_REEST_TO;
@@ -1468,7 +1617,40 @@ int xs_setup_tcp(struct rpc_xprt *xprt, struct rpc_timeout *to)
xs_format_peer_addresses(xprt);
dprintk("RPC: set up transport to address %s\n",
- xs_print_peer_address(xprt, RPC_DISPLAY_ALL));
+ xprt->address_strings[RPC_DISPLAY_ALL]);
+
+ return xprt;
+}
+
+/**
+ * init_socket_xprt - set up xprtsock's sysctls
+ *
+ */
+int init_socket_xprt(void)
+{
+#ifdef RPC_DEBUG
+ if (!sunrpc_table_header) {
+ sunrpc_table_header = register_sysctl_table(sunrpc_table, 1);
+#ifdef CONFIG_PROC_FS
+ if (sunrpc_table[0].de)
+ sunrpc_table[0].de->owner = THIS_MODULE;
+#endif
+ }
+#endif
return 0;
}
+
+/**
+ * cleanup_socket_xprt - remove xprtsock's sysctls
+ *
+ */
+void cleanup_socket_xprt(void)
+{
+#ifdef RPC_DEBUG
+ if (sunrpc_table_header) {
+ unregister_sysctl_table(sunrpc_table_header);
+ sunrpc_table_header = NULL;
+ }
+#endif
+}
generated by cgit v1.2.3 (git 2.39.1) at 2024-05-19 13:23:16 +0000